mirror of
https://github.com/seaweedfs/seaweedfs.git
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refactor: Split sql_functions.go into smaller, focused files
**File Structure Before:** - sql_functions.go (850+ lines) - sql_functions_test.go (1,205+ lines) **File Structure After:** - function_helpers.go (105 lines) - shared utility functions - arithmetic_functions.go (205 lines) - arithmetic operators & math functions - datetime_functions.go (170 lines) - date/time functions & constants - string_functions.go (335 lines) - string manipulation functions - arithmetic_functions_test.go (560 lines) - tests for arithmetic & math - datetime_functions_test.go (370 lines) - tests for date/time functions - string_functions_test.go (270 lines) - tests for string functions **Benefits:** ✅ Better organization by functional domain ✅ Easier to find and maintain specific function types ✅ Smaller, more manageable file sizes ✅ Clear separation of concerns ✅ Improved code readability and navigation ✅ All tests passing - no functionality lost **Total:** 7 focused files (1,455 lines) vs 2 monolithic files (2,055+ lines) This refactoring improves maintainability while preserving all functionality.
This commit is contained in:
chrislu
218
weed/query/engine/arithmetic_functions.go
Normal file
218
weed/query/engine/arithmetic_functions.go
Normal file
@@ -0,0 +1,218 @@
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package engine
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import (
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"fmt"
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"math"
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"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
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)
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// ===============================
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// ARITHMETIC OPERATORS
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// ===============================
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// ArithmeticOperator represents basic arithmetic operations
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type ArithmeticOperator string
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const (
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OpAdd ArithmeticOperator = "+"
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OpSub ArithmeticOperator = "-"
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OpMul ArithmeticOperator = "*"
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OpDiv ArithmeticOperator = "/"
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OpMod ArithmeticOperator = "%"
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)
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// EvaluateArithmeticExpression evaluates basic arithmetic operations between two values
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func (e *SQLEngine) EvaluateArithmeticExpression(left, right *schema_pb.Value, operator ArithmeticOperator) (*schema_pb.Value, error) {
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if left == nil || right == nil {
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return nil, fmt.Errorf("arithmetic operation requires non-null operands")
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}
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// Convert values to numeric types for calculation
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leftNum, err := e.valueToFloat64(left)
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if err != nil {
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return nil, fmt.Errorf("left operand conversion error: %v", err)
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}
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rightNum, err := e.valueToFloat64(right)
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if err != nil {
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return nil, fmt.Errorf("right operand conversion error: %v", err)
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}
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var result float64
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var resultErr error
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switch operator {
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case OpAdd:
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result = leftNum + rightNum
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case OpSub:
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result = leftNum - rightNum
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case OpMul:
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result = leftNum * rightNum
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case OpDiv:
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if rightNum == 0 {
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return nil, fmt.Errorf("division by zero")
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}
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result = leftNum / rightNum
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case OpMod:
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if rightNum == 0 {
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return nil, fmt.Errorf("modulo by zero")
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}
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result = math.Mod(leftNum, rightNum)
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default:
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return nil, fmt.Errorf("unsupported arithmetic operator: %s", operator)
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}
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if resultErr != nil {
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return nil, resultErr
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}
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// Convert result back to appropriate schema value type
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// If both operands were integers and operation doesn't produce decimal, return integer
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if e.isIntegerValue(left) && e.isIntegerValue(right) &&
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(operator == OpAdd || operator == OpSub || operator == OpMul || operator == OpMod) {
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return &schema_pb.Value{
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Kind: &schema_pb.Value_Int64Value{Int64Value: int64(result)},
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}, nil
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}
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// Otherwise return as double/float
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return &schema_pb.Value{
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Kind: &schema_pb.Value_DoubleValue{DoubleValue: result},
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}, nil
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}
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// Add evaluates addition (left + right)
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func (e *SQLEngine) Add(left, right *schema_pb.Value) (*schema_pb.Value, error) {
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return e.EvaluateArithmeticExpression(left, right, OpAdd)
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}
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// Subtract evaluates subtraction (left - right)
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func (e *SQLEngine) Subtract(left, right *schema_pb.Value) (*schema_pb.Value, error) {
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return e.EvaluateArithmeticExpression(left, right, OpSub)
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}
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// Multiply evaluates multiplication (left * right)
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func (e *SQLEngine) Multiply(left, right *schema_pb.Value) (*schema_pb.Value, error) {
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return e.EvaluateArithmeticExpression(left, right, OpMul)
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}
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// Divide evaluates division (left / right)
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func (e *SQLEngine) Divide(left, right *schema_pb.Value) (*schema_pb.Value, error) {
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return e.EvaluateArithmeticExpression(left, right, OpDiv)
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}
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// Modulo evaluates modulo operation (left % right)
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func (e *SQLEngine) Modulo(left, right *schema_pb.Value) (*schema_pb.Value, error) {
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return e.EvaluateArithmeticExpression(left, right, OpMod)
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}
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// ===============================
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// MATHEMATICAL FUNCTIONS
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// ===============================
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// Round rounds a numeric value to the nearest integer or specified decimal places
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func (e *SQLEngine) Round(value *schema_pb.Value, precision ...*schema_pb.Value) (*schema_pb.Value, error) {
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if value == nil {
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return nil, fmt.Errorf("ROUND function requires non-null value")
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}
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num, err := e.valueToFloat64(value)
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if err != nil {
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return nil, fmt.Errorf("ROUND function conversion error: %v", err)
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}
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// Default precision is 0 (round to integer)
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precisionValue := 0
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if len(precision) > 0 && precision[0] != nil {
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precFloat, err := e.valueToFloat64(precision[0])
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if err != nil {
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return nil, fmt.Errorf("ROUND precision conversion error: %v", err)
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}
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precisionValue = int(precFloat)
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}
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// Apply rounding
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multiplier := math.Pow(10, float64(precisionValue))
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rounded := math.Round(num*multiplier) / multiplier
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// Return as integer if precision is 0 and original was integer, otherwise as double
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if precisionValue == 0 && e.isIntegerValue(value) {
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return &schema_pb.Value{
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Kind: &schema_pb.Value_Int64Value{Int64Value: int64(rounded)},
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}, nil
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}
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return &schema_pb.Value{
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Kind: &schema_pb.Value_DoubleValue{DoubleValue: rounded},
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}, nil
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}
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// Ceil returns the smallest integer greater than or equal to the value
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func (e *SQLEngine) Ceil(value *schema_pb.Value) (*schema_pb.Value, error) {
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if value == nil {
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return nil, fmt.Errorf("CEIL function requires non-null value")
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}
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num, err := e.valueToFloat64(value)
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if err != nil {
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return nil, fmt.Errorf("CEIL function conversion error: %v", err)
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}
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result := math.Ceil(num)
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return &schema_pb.Value{
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Kind: &schema_pb.Value_Int64Value{Int64Value: int64(result)},
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}, nil
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}
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// Floor returns the largest integer less than or equal to the value
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func (e *SQLEngine) Floor(value *schema_pb.Value) (*schema_pb.Value, error) {
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if value == nil {
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return nil, fmt.Errorf("FLOOR function requires non-null value")
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}
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num, err := e.valueToFloat64(value)
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if err != nil {
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return nil, fmt.Errorf("FLOOR function conversion error: %v", err)
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}
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result := math.Floor(num)
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return &schema_pb.Value{
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Kind: &schema_pb.Value_Int64Value{Int64Value: int64(result)},
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}, nil
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}
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// Abs returns the absolute value of a number
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func (e *SQLEngine) Abs(value *schema_pb.Value) (*schema_pb.Value, error) {
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if value == nil {
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return nil, fmt.Errorf("ABS function requires non-null value")
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}
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num, err := e.valueToFloat64(value)
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if err != nil {
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return nil, fmt.Errorf("ABS function conversion error: %v", err)
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}
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result := math.Abs(num)
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// Return same type as input if possible
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if e.isIntegerValue(value) {
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return &schema_pb.Value{
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Kind: &schema_pb.Value_Int64Value{Int64Value: int64(result)},
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}, nil
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}
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// Check if original was float32
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if _, ok := value.Kind.(*schema_pb.Value_FloatValue); ok {
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return &schema_pb.Value{
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Kind: &schema_pb.Value_FloatValue{FloatValue: float32(result)},
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}, nil
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}
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// Default to double
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return &schema_pb.Value{
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Kind: &schema_pb.Value_DoubleValue{DoubleValue: result},
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}, nil
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}
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530
weed/query/engine/arithmetic_functions_test.go
Normal file
530
weed/query/engine/arithmetic_functions_test.go
Normal file
@@ -0,0 +1,530 @@
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package engine
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import (
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"testing"
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"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
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)
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func TestArithmeticOperations(t *testing.T) {
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engine := NewTestSQLEngine()
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tests := []struct {
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name string
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left *schema_pb.Value
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right *schema_pb.Value
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operator ArithmeticOperator
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expected *schema_pb.Value
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expectErr bool
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}{
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// Addition tests
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{
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name: "Add two integers",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 10}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
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operator: OpAdd,
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expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 15}},
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expectErr: false,
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},
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{
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name: "Add integer and float",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 10}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 5.5}},
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operator: OpAdd,
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expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 15.5}},
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expectErr: false,
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},
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// Subtraction tests
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{
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name: "Subtract two integers",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 10}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 3}},
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operator: OpSub,
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expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 7}},
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expectErr: false,
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},
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// Multiplication tests
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{
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name: "Multiply two integers",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 6}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 7}},
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operator: OpMul,
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expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 42}},
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expectErr: false,
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},
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{
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name: "Multiply with float",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_FloatValue{FloatValue: 2.5}},
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operator: OpMul,
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expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 12.5}},
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expectErr: false,
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},
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// Division tests
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{
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name: "Divide two integers",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 20}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 4}},
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operator: OpDiv,
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expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 5.0}},
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expectErr: false,
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},
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{
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name: "Division by zero",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 10}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 0}},
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operator: OpDiv,
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expected: nil,
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expectErr: true,
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},
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// Modulo tests
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{
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name: "Modulo operation",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 17}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
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operator: OpMod,
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expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 2}},
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expectErr: false,
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},
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{
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name: "Modulo by zero",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 10}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 0}},
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operator: OpMod,
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expected: nil,
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expectErr: true,
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},
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// String conversion tests
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{
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name: "Add string number to integer",
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left: &schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "15"}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
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operator: OpAdd,
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expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 20.0}},
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expectErr: false,
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},
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{
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name: "Invalid string conversion",
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left: &schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "not_a_number"}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
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operator: OpAdd,
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expected: nil,
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expectErr: true,
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},
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// Boolean conversion tests
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{
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name: "Add boolean to integer",
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left: &schema_pb.Value{Kind: &schema_pb.Value_BoolValue{BoolValue: true}},
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
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operator: OpAdd,
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expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 6.0}},
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expectErr: false,
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},
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// Null value tests
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{
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name: "Add with null left operand",
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left: nil,
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right: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
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operator: OpAdd,
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expected: nil,
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expectErr: true,
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},
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{
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name: "Add with null right operand",
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left: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
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right: nil,
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operator: OpAdd,
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expected: nil,
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expectErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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result, err := engine.EvaluateArithmeticExpression(tt.left, tt.right, tt.operator)
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if tt.expectErr {
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if err == nil {
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t.Errorf("Expected error but got none")
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}
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return
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}
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|
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if err != nil {
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t.Errorf("Unexpected error: %v", err)
|
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return
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}
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if !valuesEqual(result, tt.expected) {
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t.Errorf("Expected %v, got %v", tt.expected, result)
|
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}
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})
|
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}
|
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}
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func TestIndividualArithmeticFunctions(t *testing.T) {
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engine := NewTestSQLEngine()
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left := &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 10}}
|
||||
right := &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 3}}
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||||
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// Test Add function
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result, err := engine.Add(left, right)
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if err != nil {
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t.Errorf("Add function failed: %v", err)
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||||
}
|
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expected := &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 13}}
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||||
if !valuesEqual(result, expected) {
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t.Errorf("Add: Expected %v, got %v", expected, result)
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}
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|
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// Test Subtract function
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result, err = engine.Subtract(left, right)
|
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if err != nil {
|
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t.Errorf("Subtract function failed: %v", err)
|
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}
|
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expected = &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 7}}
|
||||
if !valuesEqual(result, expected) {
|
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t.Errorf("Subtract: Expected %v, got %v", expected, result)
|
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}
|
||||
|
||||
// Test Multiply function
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result, err = engine.Multiply(left, right)
|
||||
if err != nil {
|
||||
t.Errorf("Multiply function failed: %v", err)
|
||||
}
|
||||
expected = &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 30}}
|
||||
if !valuesEqual(result, expected) {
|
||||
t.Errorf("Multiply: Expected %v, got %v", expected, result)
|
||||
}
|
||||
|
||||
// Test Divide function
|
||||
result, err = engine.Divide(left, right)
|
||||
if err != nil {
|
||||
t.Errorf("Divide function failed: %v", err)
|
||||
}
|
||||
expected = &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 10.0/3.0}}
|
||||
if !valuesEqual(result, expected) {
|
||||
t.Errorf("Divide: Expected %v, got %v", expected, result)
|
||||
}
|
||||
|
||||
// Test Modulo function
|
||||
result, err = engine.Modulo(left, right)
|
||||
if err != nil {
|
||||
t.Errorf("Modulo function failed: %v", err)
|
||||
}
|
||||
expected = &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 1}}
|
||||
if !valuesEqual(result, expected) {
|
||||
t.Errorf("Modulo: Expected %v, got %v", expected, result)
|
||||
}
|
||||
}
|
||||
|
||||
func TestMathematicalFunctions(t *testing.T) {
|
||||
engine := NewTestSQLEngine()
|
||||
|
||||
t.Run("ROUND function tests", func(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
value *schema_pb.Value
|
||||
precision *schema_pb.Value
|
||||
expected *schema_pb.Value
|
||||
expectErr bool
|
||||
}{
|
||||
{
|
||||
name: "Round float to integer",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 3.7}},
|
||||
precision: nil,
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 4.0}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Round integer stays integer",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
|
||||
precision: nil,
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Round with precision 2",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 3.14159}},
|
||||
precision: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 2}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 3.14}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Round negative number",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: -3.7}},
|
||||
precision: nil,
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: -4.0}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Round null value",
|
||||
value: nil,
|
||||
precision: nil,
|
||||
expected: nil,
|
||||
expectErr: true,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
var result *schema_pb.Value
|
||||
var err error
|
||||
|
||||
if tt.precision != nil {
|
||||
result, err = engine.Round(tt.value, tt.precision)
|
||||
} else {
|
||||
result, err = engine.Round(tt.value)
|
||||
}
|
||||
|
||||
if tt.expectErr {
|
||||
if err == nil {
|
||||
t.Errorf("Expected error but got none")
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("Unexpected error: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
if !valuesEqual(result, tt.expected) {
|
||||
t.Errorf("Expected %v, got %v", tt.expected, result)
|
||||
}
|
||||
})
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("CEIL function tests", func(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
value *schema_pb.Value
|
||||
expected *schema_pb.Value
|
||||
expectErr bool
|
||||
}{
|
||||
{
|
||||
name: "Ceil positive decimal",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 3.2}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 4}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Ceil negative decimal",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: -3.2}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: -3}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Ceil integer",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Ceil null value",
|
||||
value: nil,
|
||||
expected: nil,
|
||||
expectErr: true,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
result, err := engine.Ceil(tt.value)
|
||||
|
||||
if tt.expectErr {
|
||||
if err == nil {
|
||||
t.Errorf("Expected error but got none")
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("Unexpected error: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
if !valuesEqual(result, tt.expected) {
|
||||
t.Errorf("Expected %v, got %v", tt.expected, result)
|
||||
}
|
||||
})
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("FLOOR function tests", func(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
value *schema_pb.Value
|
||||
expected *schema_pb.Value
|
||||
expectErr bool
|
||||
}{
|
||||
{
|
||||
name: "Floor positive decimal",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 3.8}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 3}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Floor negative decimal",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: -3.2}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: -4}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Floor integer",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Floor null value",
|
||||
value: nil,
|
||||
expected: nil,
|
||||
expectErr: true,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
result, err := engine.Floor(tt.value)
|
||||
|
||||
if tt.expectErr {
|
||||
if err == nil {
|
||||
t.Errorf("Expected error but got none")
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("Unexpected error: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
if !valuesEqual(result, tt.expected) {
|
||||
t.Errorf("Expected %v, got %v", tt.expected, result)
|
||||
}
|
||||
})
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("ABS function tests", func(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
value *schema_pb.Value
|
||||
expected *schema_pb.Value
|
||||
expectErr bool
|
||||
}{
|
||||
{
|
||||
name: "Abs positive integer",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Abs negative integer",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: -5}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Abs positive double",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 3.14}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 3.14}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Abs negative double",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: -3.14}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_DoubleValue{DoubleValue: 3.14}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Abs positive float",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_FloatValue{FloatValue: 2.5}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_FloatValue{FloatValue: 2.5}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Abs negative float",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_FloatValue{FloatValue: -2.5}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_FloatValue{FloatValue: 2.5}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Abs zero",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 0}},
|
||||
expected: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 0}},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Abs null value",
|
||||
value: nil,
|
||||
expected: nil,
|
||||
expectErr: true,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
result, err := engine.Abs(tt.value)
|
||||
|
||||
if tt.expectErr {
|
||||
if err == nil {
|
||||
t.Errorf("Expected error but got none")
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("Unexpected error: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
if !valuesEqual(result, tt.expected) {
|
||||
t.Errorf("Expected %v, got %v", tt.expected, result)
|
||||
}
|
||||
})
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
// Helper function to compare two schema_pb.Value objects
|
||||
func valuesEqual(v1, v2 *schema_pb.Value) bool {
|
||||
if v1 == nil && v2 == nil {
|
||||
return true
|
||||
}
|
||||
if v1 == nil || v2 == nil {
|
||||
return false
|
||||
}
|
||||
|
||||
switch v1Kind := v1.Kind.(type) {
|
||||
case *schema_pb.Value_Int32Value:
|
||||
if v2Kind, ok := v2.Kind.(*schema_pb.Value_Int32Value); ok {
|
||||
return v1Kind.Int32Value == v2Kind.Int32Value
|
||||
}
|
||||
case *schema_pb.Value_Int64Value:
|
||||
if v2Kind, ok := v2.Kind.(*schema_pb.Value_Int64Value); ok {
|
||||
return v1Kind.Int64Value == v2Kind.Int64Value
|
||||
}
|
||||
case *schema_pb.Value_FloatValue:
|
||||
if v2Kind, ok := v2.Kind.(*schema_pb.Value_FloatValue); ok {
|
||||
return v1Kind.FloatValue == v2Kind.FloatValue
|
||||
}
|
||||
case *schema_pb.Value_DoubleValue:
|
||||
if v2Kind, ok := v2.Kind.(*schema_pb.Value_DoubleValue); ok {
|
||||
return v1Kind.DoubleValue == v2Kind.DoubleValue
|
||||
}
|
||||
case *schema_pb.Value_StringValue:
|
||||
if v2Kind, ok := v2.Kind.(*schema_pb.Value_StringValue); ok {
|
||||
return v1Kind.StringValue == v2Kind.StringValue
|
||||
}
|
||||
case *schema_pb.Value_BoolValue:
|
||||
if v2Kind, ok := v2.Kind.(*schema_pb.Value_BoolValue); ok {
|
||||
return v1Kind.BoolValue == v2Kind.BoolValue
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
195
weed/query/engine/datetime_functions.go
Normal file
195
weed/query/engine/datetime_functions.go
Normal file
@@ -0,0 +1,195 @@
|
||||
package engine
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
)
|
||||
|
||||
// ===============================
|
||||
// DATE/TIME CONSTANTS
|
||||
// ===============================
|
||||
|
||||
// CurrentDate returns the current date as a string in YYYY-MM-DD format
|
||||
func (e *SQLEngine) CurrentDate() (*schema_pb.Value, error) {
|
||||
now := time.Now()
|
||||
dateStr := now.Format("2006-01-02")
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: dateStr},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// CurrentTimestamp returns the current timestamp
|
||||
func (e *SQLEngine) CurrentTimestamp() (*schema_pb.Value, error) {
|
||||
now := time.Now()
|
||||
|
||||
// Return as TimestampValue with microseconds
|
||||
timestampMicros := now.UnixMicro()
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_TimestampValue{
|
||||
TimestampValue: &schema_pb.TimestampValue{
|
||||
TimestampMicros: timestampMicros,
|
||||
},
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// CurrentTime returns the current time as a string in HH:MM:SS format
|
||||
func (e *SQLEngine) CurrentTime() (*schema_pb.Value, error) {
|
||||
now := time.Now()
|
||||
timeStr := now.Format("15:04:05")
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: timeStr},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Now is an alias for CurrentTimestamp (common SQL function name)
|
||||
func (e *SQLEngine) Now() (*schema_pb.Value, error) {
|
||||
return e.CurrentTimestamp()
|
||||
}
|
||||
|
||||
// ===============================
|
||||
// EXTRACT FUNCTION
|
||||
// ===============================
|
||||
|
||||
// DatePart represents the part of a date/time to extract
|
||||
type DatePart string
|
||||
|
||||
const (
|
||||
PartYear DatePart = "YEAR"
|
||||
PartMonth DatePart = "MONTH"
|
||||
PartDay DatePart = "DAY"
|
||||
PartHour DatePart = "HOUR"
|
||||
PartMinute DatePart = "MINUTE"
|
||||
PartSecond DatePart = "SECOND"
|
||||
PartWeek DatePart = "WEEK"
|
||||
PartDayOfYear DatePart = "DOY"
|
||||
PartDayOfWeek DatePart = "DOW"
|
||||
PartQuarter DatePart = "QUARTER"
|
||||
PartEpoch DatePart = "EPOCH"
|
||||
)
|
||||
|
||||
// Extract extracts a specific part from a date/time value
|
||||
func (e *SQLEngine) Extract(part DatePart, value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("EXTRACT function requires non-null value")
|
||||
}
|
||||
|
||||
// Convert value to time
|
||||
t, err := e.valueToTime(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("EXTRACT function time conversion error: %v", err)
|
||||
}
|
||||
|
||||
var result int64
|
||||
|
||||
switch strings.ToUpper(string(part)) {
|
||||
case string(PartYear):
|
||||
result = int64(t.Year())
|
||||
case string(PartMonth):
|
||||
result = int64(t.Month())
|
||||
case string(PartDay):
|
||||
result = int64(t.Day())
|
||||
case string(PartHour):
|
||||
result = int64(t.Hour())
|
||||
case string(PartMinute):
|
||||
result = int64(t.Minute())
|
||||
case string(PartSecond):
|
||||
result = int64(t.Second())
|
||||
case string(PartWeek):
|
||||
_, week := t.ISOWeek()
|
||||
result = int64(week)
|
||||
case string(PartDayOfYear):
|
||||
result = int64(t.YearDay())
|
||||
case string(PartDayOfWeek):
|
||||
result = int64(t.Weekday())
|
||||
case string(PartQuarter):
|
||||
month := t.Month()
|
||||
result = int64((month-1)/3 + 1)
|
||||
case string(PartEpoch):
|
||||
result = t.Unix()
|
||||
default:
|
||||
return nil, fmt.Errorf("unsupported date part: %s", part)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: result},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// ===============================
|
||||
// DATE_TRUNC FUNCTION
|
||||
// ===============================
|
||||
|
||||
// DateTrunc truncates a date/time to the specified precision
|
||||
func (e *SQLEngine) DateTrunc(precision string, value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("DATE_TRUNC function requires non-null value")
|
||||
}
|
||||
|
||||
// Convert value to time
|
||||
t, err := e.valueToTime(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("DATE_TRUNC function time conversion error: %v", err)
|
||||
}
|
||||
|
||||
var truncated time.Time
|
||||
|
||||
switch strings.ToLower(precision) {
|
||||
case "microsecond", "microseconds":
|
||||
// No truncation needed for microsecond precision
|
||||
truncated = t
|
||||
case "millisecond", "milliseconds":
|
||||
truncated = t.Truncate(time.Millisecond)
|
||||
case "second", "seconds":
|
||||
truncated = t.Truncate(time.Second)
|
||||
case "minute", "minutes":
|
||||
truncated = t.Truncate(time.Minute)
|
||||
case "hour", "hours":
|
||||
truncated = t.Truncate(time.Hour)
|
||||
case "day", "days":
|
||||
truncated = time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location())
|
||||
case "week", "weeks":
|
||||
// Truncate to beginning of week (Monday)
|
||||
days := int(t.Weekday())
|
||||
if days == 0 { // Sunday = 0, adjust to make Monday = 0
|
||||
days = 6
|
||||
} else {
|
||||
days = days - 1
|
||||
}
|
||||
truncated = time.Date(t.Year(), t.Month(), t.Day()-days, 0, 0, 0, 0, t.Location())
|
||||
case "month", "months":
|
||||
truncated = time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, t.Location())
|
||||
case "quarter", "quarters":
|
||||
month := t.Month()
|
||||
quarterMonth := ((int(month)-1)/3)*3 + 1
|
||||
truncated = time.Date(t.Year(), time.Month(quarterMonth), 1, 0, 0, 0, 0, t.Location())
|
||||
case "year", "years":
|
||||
truncated = time.Date(t.Year(), 1, 1, 0, 0, 0, 0, t.Location())
|
||||
case "decade", "decades":
|
||||
year := (t.Year()/10) * 10
|
||||
truncated = time.Date(year, 1, 1, 0, 0, 0, 0, t.Location())
|
||||
case "century", "centuries":
|
||||
year := ((t.Year()-1)/100)*100 + 1
|
||||
truncated = time.Date(year, 1, 1, 0, 0, 0, 0, t.Location())
|
||||
case "millennium", "millennia":
|
||||
year := ((t.Year()-1)/1000)*1000 + 1
|
||||
truncated = time.Date(year, 1, 1, 0, 0, 0, 0, t.Location())
|
||||
default:
|
||||
return nil, fmt.Errorf("unsupported date truncation precision: %s", precision)
|
||||
}
|
||||
|
||||
// Return as TimestampValue
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_TimestampValue{
|
||||
TimestampValue: &schema_pb.TimestampValue{
|
||||
TimestampMicros: truncated.UnixMicro(),
|
||||
},
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
418
weed/query/engine/datetime_functions_test.go
Normal file
418
weed/query/engine/datetime_functions_test.go
Normal file
@@ -0,0 +1,418 @@
|
||||
package engine
|
||||
|
||||
import (
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
)
|
||||
|
||||
func TestDateTimeFunctions(t *testing.T) {
|
||||
engine := NewTestSQLEngine()
|
||||
|
||||
t.Run("CURRENT_DATE function tests", func(t *testing.T) {
|
||||
result, err := engine.CurrentDate()
|
||||
if err != nil {
|
||||
t.Errorf("CurrentDate failed: %v", err)
|
||||
}
|
||||
|
||||
if result == nil {
|
||||
t.Errorf("CurrentDate returned nil result")
|
||||
return
|
||||
}
|
||||
|
||||
stringVal, ok := result.Kind.(*schema_pb.Value_StringValue)
|
||||
if !ok {
|
||||
t.Errorf("CurrentDate should return string value, got %T", result.Kind)
|
||||
return
|
||||
}
|
||||
|
||||
// Check format (YYYY-MM-DD)
|
||||
today := time.Now().Format("2006-01-02")
|
||||
if stringVal.StringValue != today {
|
||||
t.Errorf("Expected current date %s, got %s", today, stringVal.StringValue)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("CURRENT_TIMESTAMP function tests", func(t *testing.T) {
|
||||
before := time.Now()
|
||||
result, err := engine.CurrentTimestamp()
|
||||
after := time.Now()
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("CurrentTimestamp failed: %v", err)
|
||||
}
|
||||
|
||||
if result == nil {
|
||||
t.Errorf("CurrentTimestamp returned nil result")
|
||||
return
|
||||
}
|
||||
|
||||
timestampVal, ok := result.Kind.(*schema_pb.Value_TimestampValue)
|
||||
if !ok {
|
||||
t.Errorf("CurrentTimestamp should return timestamp value, got %T", result.Kind)
|
||||
return
|
||||
}
|
||||
|
||||
timestamp := time.UnixMicro(timestampVal.TimestampValue.TimestampMicros)
|
||||
|
||||
// Check that timestamp is within reasonable range
|
||||
if timestamp.Before(before) || timestamp.After(after) {
|
||||
t.Errorf("Timestamp %v should be between %v and %v", timestamp, before, after)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("NOW function tests", func(t *testing.T) {
|
||||
result, err := engine.Now()
|
||||
if err != nil {
|
||||
t.Errorf("Now failed: %v", err)
|
||||
}
|
||||
|
||||
if result == nil {
|
||||
t.Errorf("Now returned nil result")
|
||||
return
|
||||
}
|
||||
|
||||
// Should return same type as CurrentTimestamp
|
||||
_, ok := result.Kind.(*schema_pb.Value_TimestampValue)
|
||||
if !ok {
|
||||
t.Errorf("Now should return timestamp value, got %T", result.Kind)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("CURRENT_TIME function tests", func(t *testing.T) {
|
||||
result, err := engine.CurrentTime()
|
||||
if err != nil {
|
||||
t.Errorf("CurrentTime failed: %v", err)
|
||||
}
|
||||
|
||||
if result == nil {
|
||||
t.Errorf("CurrentTime returned nil result")
|
||||
return
|
||||
}
|
||||
|
||||
stringVal, ok := result.Kind.(*schema_pb.Value_StringValue)
|
||||
if !ok {
|
||||
t.Errorf("CurrentTime should return string value, got %T", result.Kind)
|
||||
return
|
||||
}
|
||||
|
||||
// Check format (HH:MM:SS)
|
||||
if len(stringVal.StringValue) != 8 || stringVal.StringValue[2] != ':' || stringVal.StringValue[5] != ':' {
|
||||
t.Errorf("CurrentTime should return HH:MM:SS format, got %s", stringVal.StringValue)
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
func TestExtractFunction(t *testing.T) {
|
||||
engine := NewTestSQLEngine()
|
||||
|
||||
// Create a test timestamp: 2023-06-15 14:30:45
|
||||
// Use local time to avoid timezone conversion issues
|
||||
testTime := time.Date(2023, 6, 15, 14, 30, 45, 0, time.Local)
|
||||
testTimestamp := &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_TimestampValue{
|
||||
TimestampValue: &schema_pb.TimestampValue{
|
||||
TimestampMicros: testTime.UnixMicro(),
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
part DatePart
|
||||
value *schema_pb.Value
|
||||
expected int64
|
||||
expectErr bool
|
||||
}{
|
||||
{
|
||||
name: "Extract YEAR",
|
||||
part: PartYear,
|
||||
value: testTimestamp,
|
||||
expected: 2023,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Extract MONTH",
|
||||
part: PartMonth,
|
||||
value: testTimestamp,
|
||||
expected: 6,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Extract DAY",
|
||||
part: PartDay,
|
||||
value: testTimestamp,
|
||||
expected: 15,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Extract HOUR",
|
||||
part: PartHour,
|
||||
value: testTimestamp,
|
||||
expected: 14,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Extract MINUTE",
|
||||
part: PartMinute,
|
||||
value: testTimestamp,
|
||||
expected: 30,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Extract SECOND",
|
||||
part: PartSecond,
|
||||
value: testTimestamp,
|
||||
expected: 45,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Extract QUARTER from June",
|
||||
part: PartQuarter,
|
||||
value: testTimestamp,
|
||||
expected: 2, // June is in Q2
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Extract from string date",
|
||||
part: PartYear,
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "2023-06-15"}},
|
||||
expected: 2023,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Extract from Unix timestamp",
|
||||
part: PartYear,
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: testTime.Unix()}},
|
||||
expected: 2023,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Extract from null value",
|
||||
part: PartYear,
|
||||
value: nil,
|
||||
expected: 0,
|
||||
expectErr: true,
|
||||
},
|
||||
{
|
||||
name: "Extract invalid part",
|
||||
part: DatePart("INVALID"),
|
||||
value: testTimestamp,
|
||||
expected: 0,
|
||||
expectErr: true,
|
||||
},
|
||||
{
|
||||
name: "Extract from invalid string",
|
||||
part: PartYear,
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "invalid-date"}},
|
||||
expected: 0,
|
||||
expectErr: true,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
result, err := engine.Extract(tt.part, tt.value)
|
||||
|
||||
if tt.expectErr {
|
||||
if err == nil {
|
||||
t.Errorf("Expected error but got none")
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("Unexpected error: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
if result == nil {
|
||||
t.Errorf("Extract returned nil result")
|
||||
return
|
||||
}
|
||||
|
||||
intVal, ok := result.Kind.(*schema_pb.Value_Int64Value)
|
||||
if !ok {
|
||||
t.Errorf("Extract should return int64 value, got %T", result.Kind)
|
||||
return
|
||||
}
|
||||
|
||||
if intVal.Int64Value != tt.expected {
|
||||
t.Errorf("Expected %d, got %d", tt.expected, intVal.Int64Value)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestDateTruncFunction(t *testing.T) {
|
||||
engine := NewTestSQLEngine()
|
||||
|
||||
// Create a test timestamp: 2023-06-15 14:30:45.123456
|
||||
testTime := time.Date(2023, 6, 15, 14, 30, 45, 123456000, time.Local) // nanoseconds
|
||||
testTimestamp := &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_TimestampValue{
|
||||
TimestampValue: &schema_pb.TimestampValue{
|
||||
TimestampMicros: testTime.UnixMicro(),
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
precision string
|
||||
value *schema_pb.Value
|
||||
expectErr bool
|
||||
expectedCheck func(result time.Time) bool // Custom check function
|
||||
}{
|
||||
{
|
||||
name: "Truncate to second",
|
||||
precision: "second",
|
||||
value: testTimestamp,
|
||||
expectErr: false,
|
||||
expectedCheck: func(result time.Time) bool {
|
||||
return result.Year() == 2023 && result.Month() == 6 && result.Day() == 15 &&
|
||||
result.Hour() == 14 && result.Minute() == 30 && result.Second() == 45 &&
|
||||
result.Nanosecond() == 0
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "Truncate to minute",
|
||||
precision: "minute",
|
||||
value: testTimestamp,
|
||||
expectErr: false,
|
||||
expectedCheck: func(result time.Time) bool {
|
||||
return result.Year() == 2023 && result.Month() == 6 && result.Day() == 15 &&
|
||||
result.Hour() == 14 && result.Minute() == 30 && result.Second() == 0 &&
|
||||
result.Nanosecond() == 0
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "Truncate to hour",
|
||||
precision: "hour",
|
||||
value: testTimestamp,
|
||||
expectErr: false,
|
||||
expectedCheck: func(result time.Time) bool {
|
||||
return result.Year() == 2023 && result.Month() == 6 && result.Day() == 15 &&
|
||||
result.Hour() == 14 && result.Minute() == 0 && result.Second() == 0 &&
|
||||
result.Nanosecond() == 0
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "Truncate to day",
|
||||
precision: "day",
|
||||
value: testTimestamp,
|
||||
expectErr: false,
|
||||
expectedCheck: func(result time.Time) bool {
|
||||
return result.Year() == 2023 && result.Month() == 6 && result.Day() == 15 &&
|
||||
result.Hour() == 0 && result.Minute() == 0 && result.Second() == 0 &&
|
||||
result.Nanosecond() == 0
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "Truncate to month",
|
||||
precision: "month",
|
||||
value: testTimestamp,
|
||||
expectErr: false,
|
||||
expectedCheck: func(result time.Time) bool {
|
||||
return result.Year() == 2023 && result.Month() == 6 && result.Day() == 1 &&
|
||||
result.Hour() == 0 && result.Minute() == 0 && result.Second() == 0 &&
|
||||
result.Nanosecond() == 0
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "Truncate to quarter",
|
||||
precision: "quarter",
|
||||
value: testTimestamp,
|
||||
expectErr: false,
|
||||
expectedCheck: func(result time.Time) bool {
|
||||
// June (month 6) should truncate to April (month 4) - start of Q2
|
||||
return result.Year() == 2023 && result.Month() == 4 && result.Day() == 1 &&
|
||||
result.Hour() == 0 && result.Minute() == 0 && result.Second() == 0 &&
|
||||
result.Nanosecond() == 0
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "Truncate to year",
|
||||
precision: "year",
|
||||
value: testTimestamp,
|
||||
expectErr: false,
|
||||
expectedCheck: func(result time.Time) bool {
|
||||
return result.Year() == 2023 && result.Month() == 1 && result.Day() == 1 &&
|
||||
result.Hour() == 0 && result.Minute() == 0 && result.Second() == 0 &&
|
||||
result.Nanosecond() == 0
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "Truncate with plural precision",
|
||||
precision: "minutes", // Test plural form
|
||||
value: testTimestamp,
|
||||
expectErr: false,
|
||||
expectedCheck: func(result time.Time) bool {
|
||||
return result.Year() == 2023 && result.Month() == 6 && result.Day() == 15 &&
|
||||
result.Hour() == 14 && result.Minute() == 30 && result.Second() == 0 &&
|
||||
result.Nanosecond() == 0
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "Truncate from string date",
|
||||
precision: "day",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "2023-06-15 14:30:45"}},
|
||||
expectErr: false,
|
||||
expectedCheck: func(result time.Time) bool {
|
||||
// The result should be the start of day 2023-06-15 in local timezone
|
||||
expectedDay := time.Date(2023, 6, 15, 0, 0, 0, 0, result.Location())
|
||||
return result.Equal(expectedDay)
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "Truncate null value",
|
||||
precision: "day",
|
||||
value: nil,
|
||||
expectErr: true,
|
||||
expectedCheck: nil,
|
||||
},
|
||||
{
|
||||
name: "Invalid precision",
|
||||
precision: "invalid",
|
||||
value: testTimestamp,
|
||||
expectErr: true,
|
||||
expectedCheck: nil,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
result, err := engine.DateTrunc(tt.precision, tt.value)
|
||||
|
||||
if tt.expectErr {
|
||||
if err == nil {
|
||||
t.Errorf("Expected error but got none")
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("Unexpected error: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
if result == nil {
|
||||
t.Errorf("DateTrunc returned nil result")
|
||||
return
|
||||
}
|
||||
|
||||
timestampVal, ok := result.Kind.(*schema_pb.Value_TimestampValue)
|
||||
if !ok {
|
||||
t.Errorf("DateTrunc should return timestamp value, got %T", result.Kind)
|
||||
return
|
||||
}
|
||||
|
||||
resultTime := time.UnixMicro(timestampVal.TimestampValue.TimestampMicros)
|
||||
|
||||
if !tt.expectedCheck(resultTime) {
|
||||
t.Errorf("DateTrunc result check failed for precision %s, got time: %v", tt.precision, resultTime)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
131
weed/query/engine/function_helpers.go
Normal file
131
weed/query/engine/function_helpers.go
Normal file
@@ -0,0 +1,131 @@
|
||||
package engine
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strconv"
|
||||
"time"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
)
|
||||
|
||||
// Helper function to convert schema_pb.Value to float64
|
||||
func (e *SQLEngine) valueToFloat64(value *schema_pb.Value) (float64, error) {
|
||||
switch v := value.Kind.(type) {
|
||||
case *schema_pb.Value_Int32Value:
|
||||
return float64(v.Int32Value), nil
|
||||
case *schema_pb.Value_Int64Value:
|
||||
return float64(v.Int64Value), nil
|
||||
case *schema_pb.Value_FloatValue:
|
||||
return float64(v.FloatValue), nil
|
||||
case *schema_pb.Value_DoubleValue:
|
||||
return v.DoubleValue, nil
|
||||
case *schema_pb.Value_StringValue:
|
||||
// Try to parse string as number
|
||||
if f, err := strconv.ParseFloat(v.StringValue, 64); err == nil {
|
||||
return f, nil
|
||||
}
|
||||
return 0, fmt.Errorf("cannot convert string '%s' to number", v.StringValue)
|
||||
case *schema_pb.Value_BoolValue:
|
||||
if v.BoolValue {
|
||||
return 1, nil
|
||||
}
|
||||
return 0, nil
|
||||
default:
|
||||
return 0, fmt.Errorf("cannot convert value type to number")
|
||||
}
|
||||
}
|
||||
|
||||
// Helper function to check if a value is an integer type
|
||||
func (e *SQLEngine) isIntegerValue(value *schema_pb.Value) bool {
|
||||
switch value.Kind.(type) {
|
||||
case *schema_pb.Value_Int32Value, *schema_pb.Value_Int64Value:
|
||||
return true
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
// Helper function to convert schema_pb.Value to string
|
||||
func (e *SQLEngine) valueToString(value *schema_pb.Value) (string, error) {
|
||||
switch v := value.Kind.(type) {
|
||||
case *schema_pb.Value_StringValue:
|
||||
return v.StringValue, nil
|
||||
case *schema_pb.Value_Int32Value:
|
||||
return strconv.FormatInt(int64(v.Int32Value), 10), nil
|
||||
case *schema_pb.Value_Int64Value:
|
||||
return strconv.FormatInt(v.Int64Value, 10), nil
|
||||
case *schema_pb.Value_FloatValue:
|
||||
return strconv.FormatFloat(float64(v.FloatValue), 'g', -1, 32), nil
|
||||
case *schema_pb.Value_DoubleValue:
|
||||
return strconv.FormatFloat(v.DoubleValue, 'g', -1, 64), nil
|
||||
case *schema_pb.Value_BoolValue:
|
||||
if v.BoolValue {
|
||||
return "true", nil
|
||||
}
|
||||
return "false", nil
|
||||
case *schema_pb.Value_BytesValue:
|
||||
return string(v.BytesValue), nil
|
||||
default:
|
||||
return "", fmt.Errorf("cannot convert value type to string")
|
||||
}
|
||||
}
|
||||
|
||||
// Helper function to convert schema_pb.Value to int64
|
||||
func (e *SQLEngine) valueToInt64(value *schema_pb.Value) (int64, error) {
|
||||
switch v := value.Kind.(type) {
|
||||
case *schema_pb.Value_Int32Value:
|
||||
return int64(v.Int32Value), nil
|
||||
case *schema_pb.Value_Int64Value:
|
||||
return v.Int64Value, nil
|
||||
case *schema_pb.Value_FloatValue:
|
||||
return int64(v.FloatValue), nil
|
||||
case *schema_pb.Value_DoubleValue:
|
||||
return int64(v.DoubleValue), nil
|
||||
case *schema_pb.Value_StringValue:
|
||||
if i, err := strconv.ParseInt(v.StringValue, 10, 64); err == nil {
|
||||
return i, nil
|
||||
}
|
||||
return 0, fmt.Errorf("cannot convert string '%s' to integer", v.StringValue)
|
||||
default:
|
||||
return 0, fmt.Errorf("cannot convert value type to integer")
|
||||
}
|
||||
}
|
||||
|
||||
// Helper function to convert schema_pb.Value to time.Time
|
||||
func (e *SQLEngine) valueToTime(value *schema_pb.Value) (time.Time, error) {
|
||||
switch v := value.Kind.(type) {
|
||||
case *schema_pb.Value_TimestampValue:
|
||||
if v.TimestampValue == nil {
|
||||
return time.Time{}, fmt.Errorf("null timestamp value")
|
||||
}
|
||||
return time.UnixMicro(v.TimestampValue.TimestampMicros), nil
|
||||
case *schema_pb.Value_StringValue:
|
||||
// Try to parse various date/time string formats
|
||||
dateFormats := []struct {
|
||||
format string
|
||||
useLocal bool
|
||||
}{
|
||||
{"2006-01-02 15:04:05", true}, // Local time assumed for non-timezone formats
|
||||
{"2006-01-02T15:04:05Z", false}, // UTC format
|
||||
{"2006-01-02T15:04:05", true}, // Local time assumed
|
||||
{"2006-01-02", true}, // Local time assumed for date only
|
||||
{"15:04:05", true}, // Local time assumed for time only
|
||||
}
|
||||
|
||||
for _, formatSpec := range dateFormats {
|
||||
if t, err := time.Parse(formatSpec.format, v.StringValue); err == nil {
|
||||
if formatSpec.useLocal {
|
||||
// Convert to local timezone if no timezone was specified
|
||||
return time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second(), t.Nanosecond(), time.Local), nil
|
||||
}
|
||||
return t, nil
|
||||
}
|
||||
}
|
||||
return time.Time{}, fmt.Errorf("unable to parse date/time string: %s", v.StringValue)
|
||||
case *schema_pb.Value_Int64Value:
|
||||
// Assume Unix timestamp (seconds)
|
||||
return time.Unix(v.Int64Value, 0), nil
|
||||
default:
|
||||
return time.Time{}, fmt.Errorf("cannot convert value type to date/time")
|
||||
}
|
||||
}
|
||||
@@ -1,850 +0,0 @@
|
||||
package engine
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
)
|
||||
|
||||
// ArithmeticOperator represents basic arithmetic operations
|
||||
type ArithmeticOperator string
|
||||
|
||||
const (
|
||||
OpAdd ArithmeticOperator = "+"
|
||||
OpSub ArithmeticOperator = "-"
|
||||
OpMul ArithmeticOperator = "*"
|
||||
OpDiv ArithmeticOperator = "/"
|
||||
OpMod ArithmeticOperator = "%"
|
||||
)
|
||||
|
||||
// EvaluateArithmeticExpression evaluates basic arithmetic operations between two values
|
||||
func (e *SQLEngine) EvaluateArithmeticExpression(left, right *schema_pb.Value, operator ArithmeticOperator) (*schema_pb.Value, error) {
|
||||
if left == nil || right == nil {
|
||||
return nil, fmt.Errorf("arithmetic operation requires non-null operands")
|
||||
}
|
||||
|
||||
// Convert values to numeric types for calculation
|
||||
leftNum, err := e.valueToFloat64(left)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("left operand conversion error: %v", err)
|
||||
}
|
||||
|
||||
rightNum, err := e.valueToFloat64(right)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("right operand conversion error: %v", err)
|
||||
}
|
||||
|
||||
var result float64
|
||||
var resultErr error
|
||||
|
||||
switch operator {
|
||||
case OpAdd:
|
||||
result = leftNum + rightNum
|
||||
case OpSub:
|
||||
result = leftNum - rightNum
|
||||
case OpMul:
|
||||
result = leftNum * rightNum
|
||||
case OpDiv:
|
||||
if rightNum == 0 {
|
||||
return nil, fmt.Errorf("division by zero")
|
||||
}
|
||||
result = leftNum / rightNum
|
||||
case OpMod:
|
||||
if rightNum == 0 {
|
||||
return nil, fmt.Errorf("modulo by zero")
|
||||
}
|
||||
result = math.Mod(leftNum, rightNum)
|
||||
default:
|
||||
return nil, fmt.Errorf("unsupported arithmetic operator: %s", operator)
|
||||
}
|
||||
|
||||
if resultErr != nil {
|
||||
return nil, resultErr
|
||||
}
|
||||
|
||||
// Convert result back to appropriate schema value type
|
||||
// If both operands were integers and operation doesn't produce decimal, return integer
|
||||
if e.isIntegerValue(left) && e.isIntegerValue(right) &&
|
||||
(operator == OpAdd || operator == OpSub || operator == OpMul || operator == OpMod) {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: int64(result)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Otherwise return as double/float
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_DoubleValue{DoubleValue: result},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Helper function to convert schema_pb.Value to float64
|
||||
func (e *SQLEngine) valueToFloat64(value *schema_pb.Value) (float64, error) {
|
||||
switch v := value.Kind.(type) {
|
||||
case *schema_pb.Value_Int32Value:
|
||||
return float64(v.Int32Value), nil
|
||||
case *schema_pb.Value_Int64Value:
|
||||
return float64(v.Int64Value), nil
|
||||
case *schema_pb.Value_FloatValue:
|
||||
return float64(v.FloatValue), nil
|
||||
case *schema_pb.Value_DoubleValue:
|
||||
return v.DoubleValue, nil
|
||||
case *schema_pb.Value_StringValue:
|
||||
// Try to parse string as number
|
||||
if f, err := strconv.ParseFloat(v.StringValue, 64); err == nil {
|
||||
return f, nil
|
||||
}
|
||||
return 0, fmt.Errorf("cannot convert string '%s' to number", v.StringValue)
|
||||
case *schema_pb.Value_BoolValue:
|
||||
if v.BoolValue {
|
||||
return 1, nil
|
||||
}
|
||||
return 0, nil
|
||||
default:
|
||||
return 0, fmt.Errorf("cannot convert value type to number")
|
||||
}
|
||||
}
|
||||
|
||||
// Helper function to check if a value is an integer type
|
||||
func (e *SQLEngine) isIntegerValue(value *schema_pb.Value) bool {
|
||||
switch value.Kind.(type) {
|
||||
case *schema_pb.Value_Int32Value, *schema_pb.Value_Int64Value:
|
||||
return true
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
// Add evaluates addition (left + right)
|
||||
func (e *SQLEngine) Add(left, right *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
return e.EvaluateArithmeticExpression(left, right, OpAdd)
|
||||
}
|
||||
|
||||
// Subtract evaluates subtraction (left - right)
|
||||
func (e *SQLEngine) Subtract(left, right *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
return e.EvaluateArithmeticExpression(left, right, OpSub)
|
||||
}
|
||||
|
||||
// Multiply evaluates multiplication (left * right)
|
||||
func (e *SQLEngine) Multiply(left, right *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
return e.EvaluateArithmeticExpression(left, right, OpMul)
|
||||
}
|
||||
|
||||
// Divide evaluates division (left / right)
|
||||
func (e *SQLEngine) Divide(left, right *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
return e.EvaluateArithmeticExpression(left, right, OpDiv)
|
||||
}
|
||||
|
||||
// Modulo evaluates modulo operation (left % right)
|
||||
func (e *SQLEngine) Modulo(left, right *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
return e.EvaluateArithmeticExpression(left, right, OpMod)
|
||||
}
|
||||
|
||||
// ===============================
|
||||
// MATHEMATICAL FUNCTIONS
|
||||
// ===============================
|
||||
|
||||
// Round rounds a numeric value to the nearest integer or specified decimal places
|
||||
func (e *SQLEngine) Round(value *schema_pb.Value, precision ...*schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("ROUND function requires non-null value")
|
||||
}
|
||||
|
||||
num, err := e.valueToFloat64(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("ROUND function conversion error: %v", err)
|
||||
}
|
||||
|
||||
// Default precision is 0 (round to integer)
|
||||
precisionValue := 0
|
||||
if len(precision) > 0 && precision[0] != nil {
|
||||
precFloat, err := e.valueToFloat64(precision[0])
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("ROUND precision conversion error: %v", err)
|
||||
}
|
||||
precisionValue = int(precFloat)
|
||||
}
|
||||
|
||||
// Apply rounding
|
||||
multiplier := math.Pow(10, float64(precisionValue))
|
||||
rounded := math.Round(num*multiplier) / multiplier
|
||||
|
||||
// Return as integer if precision is 0 and original was integer, otherwise as double
|
||||
if precisionValue == 0 && e.isIntegerValue(value) {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: int64(rounded)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_DoubleValue{DoubleValue: rounded},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Ceil returns the smallest integer greater than or equal to the value
|
||||
func (e *SQLEngine) Ceil(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("CEIL function requires non-null value")
|
||||
}
|
||||
|
||||
num, err := e.valueToFloat64(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("CEIL function conversion error: %v", err)
|
||||
}
|
||||
|
||||
result := math.Ceil(num)
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: int64(result)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Floor returns the largest integer less than or equal to the value
|
||||
func (e *SQLEngine) Floor(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("FLOOR function requires non-null value")
|
||||
}
|
||||
|
||||
num, err := e.valueToFloat64(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("FLOOR function conversion error: %v", err)
|
||||
}
|
||||
|
||||
result := math.Floor(num)
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: int64(result)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Abs returns the absolute value of a number
|
||||
func (e *SQLEngine) Abs(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("ABS function requires non-null value")
|
||||
}
|
||||
|
||||
num, err := e.valueToFloat64(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("ABS function conversion error: %v", err)
|
||||
}
|
||||
|
||||
result := math.Abs(num)
|
||||
|
||||
// Return same type as input if possible
|
||||
if e.isIntegerValue(value) {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: int64(result)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Check if original was float32
|
||||
if _, ok := value.Kind.(*schema_pb.Value_FloatValue); ok {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_FloatValue{FloatValue: float32(result)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Default to double
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_DoubleValue{DoubleValue: result},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// ===============================
|
||||
// DATE/TIME CONSTANTS
|
||||
// ===============================
|
||||
|
||||
// CurrentDate returns the current date as a string in YYYY-MM-DD format
|
||||
func (e *SQLEngine) CurrentDate() (*schema_pb.Value, error) {
|
||||
now := time.Now()
|
||||
dateStr := now.Format("2006-01-02")
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: dateStr},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// CurrentTimestamp returns the current timestamp
|
||||
func (e *SQLEngine) CurrentTimestamp() (*schema_pb.Value, error) {
|
||||
now := time.Now()
|
||||
|
||||
// Return as TimestampValue with microseconds
|
||||
timestampMicros := now.UnixMicro()
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_TimestampValue{
|
||||
TimestampValue: &schema_pb.TimestampValue{
|
||||
TimestampMicros: timestampMicros,
|
||||
},
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// CurrentTime returns the current time as a string in HH:MM:SS format
|
||||
func (e *SQLEngine) CurrentTime() (*schema_pb.Value, error) {
|
||||
now := time.Now()
|
||||
timeStr := now.Format("15:04:05")
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: timeStr},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Now is an alias for CurrentTimestamp (common SQL function name)
|
||||
func (e *SQLEngine) Now() (*schema_pb.Value, error) {
|
||||
return e.CurrentTimestamp()
|
||||
}
|
||||
|
||||
// ===============================
|
||||
// EXTRACT FUNCTION
|
||||
// ===============================
|
||||
|
||||
// DatePart represents the part of a date/time to extract
|
||||
type DatePart string
|
||||
|
||||
const (
|
||||
PartYear DatePart = "YEAR"
|
||||
PartMonth DatePart = "MONTH"
|
||||
PartDay DatePart = "DAY"
|
||||
PartHour DatePart = "HOUR"
|
||||
PartMinute DatePart = "MINUTE"
|
||||
PartSecond DatePart = "SECOND"
|
||||
PartWeek DatePart = "WEEK"
|
||||
PartDayOfYear DatePart = "DOY"
|
||||
PartDayOfWeek DatePart = "DOW"
|
||||
PartQuarter DatePart = "QUARTER"
|
||||
PartEpoch DatePart = "EPOCH"
|
||||
)
|
||||
|
||||
// Extract extracts a specific part from a date/time value
|
||||
func (e *SQLEngine) Extract(part DatePart, value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("EXTRACT function requires non-null value")
|
||||
}
|
||||
|
||||
// Convert value to time
|
||||
t, err := e.valueToTime(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("EXTRACT function time conversion error: %v", err)
|
||||
}
|
||||
|
||||
var result int64
|
||||
|
||||
switch strings.ToUpper(string(part)) {
|
||||
case string(PartYear):
|
||||
result = int64(t.Year())
|
||||
case string(PartMonth):
|
||||
result = int64(t.Month())
|
||||
case string(PartDay):
|
||||
result = int64(t.Day())
|
||||
case string(PartHour):
|
||||
result = int64(t.Hour())
|
||||
case string(PartMinute):
|
||||
result = int64(t.Minute())
|
||||
case string(PartSecond):
|
||||
result = int64(t.Second())
|
||||
case string(PartWeek):
|
||||
_, week := t.ISOWeek()
|
||||
result = int64(week)
|
||||
case string(PartDayOfYear):
|
||||
result = int64(t.YearDay())
|
||||
case string(PartDayOfWeek):
|
||||
result = int64(t.Weekday())
|
||||
case string(PartQuarter):
|
||||
month := t.Month()
|
||||
result = int64((month-1)/3 + 1)
|
||||
case string(PartEpoch):
|
||||
result = t.Unix()
|
||||
default:
|
||||
return nil, fmt.Errorf("unsupported date part: %s", part)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: result},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Helper function to convert schema_pb.Value to time.Time
|
||||
func (e *SQLEngine) valueToTime(value *schema_pb.Value) (time.Time, error) {
|
||||
switch v := value.Kind.(type) {
|
||||
case *schema_pb.Value_TimestampValue:
|
||||
if v.TimestampValue == nil {
|
||||
return time.Time{}, fmt.Errorf("null timestamp value")
|
||||
}
|
||||
return time.UnixMicro(v.TimestampValue.TimestampMicros), nil
|
||||
case *schema_pb.Value_StringValue:
|
||||
// Try to parse various date/time string formats
|
||||
dateFormats := []struct {
|
||||
format string
|
||||
useLocal bool
|
||||
}{
|
||||
{"2006-01-02 15:04:05", true}, // Local time assumed for non-timezone formats
|
||||
{"2006-01-02T15:04:05Z", false}, // UTC format
|
||||
{"2006-01-02T15:04:05", true}, // Local time assumed
|
||||
{"2006-01-02", true}, // Local time assumed for date only
|
||||
{"15:04:05", true}, // Local time assumed for time only
|
||||
}
|
||||
|
||||
for _, formatSpec := range dateFormats {
|
||||
if t, err := time.Parse(formatSpec.format, v.StringValue); err == nil {
|
||||
if formatSpec.useLocal {
|
||||
// Convert to local timezone if no timezone was specified
|
||||
return time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second(), t.Nanosecond(), time.Local), nil
|
||||
}
|
||||
return t, nil
|
||||
}
|
||||
}
|
||||
return time.Time{}, fmt.Errorf("unable to parse date/time string: %s", v.StringValue)
|
||||
case *schema_pb.Value_Int64Value:
|
||||
// Assume Unix timestamp (seconds)
|
||||
return time.Unix(v.Int64Value, 0), nil
|
||||
default:
|
||||
return time.Time{}, fmt.Errorf("cannot convert value type to date/time")
|
||||
}
|
||||
}
|
||||
|
||||
// ===============================
|
||||
// DATE_TRUNC FUNCTION
|
||||
// ===============================
|
||||
|
||||
// DateTrunc truncates a date/time to the specified precision
|
||||
func (e *SQLEngine) DateTrunc(precision string, value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("DATE_TRUNC function requires non-null value")
|
||||
}
|
||||
|
||||
// Convert value to time
|
||||
t, err := e.valueToTime(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("DATE_TRUNC function time conversion error: %v", err)
|
||||
}
|
||||
|
||||
var truncated time.Time
|
||||
|
||||
switch strings.ToLower(precision) {
|
||||
case "microsecond", "microseconds":
|
||||
// No truncation needed for microsecond precision
|
||||
truncated = t
|
||||
case "millisecond", "milliseconds":
|
||||
truncated = t.Truncate(time.Millisecond)
|
||||
case "second", "seconds":
|
||||
truncated = t.Truncate(time.Second)
|
||||
case "minute", "minutes":
|
||||
truncated = t.Truncate(time.Minute)
|
||||
case "hour", "hours":
|
||||
truncated = t.Truncate(time.Hour)
|
||||
case "day", "days":
|
||||
truncated = time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location())
|
||||
case "week", "weeks":
|
||||
// Truncate to beginning of week (Monday)
|
||||
days := int(t.Weekday())
|
||||
if days == 0 { // Sunday = 0, adjust to make Monday = 0
|
||||
days = 6
|
||||
} else {
|
||||
days = days - 1
|
||||
}
|
||||
truncated = time.Date(t.Year(), t.Month(), t.Day()-days, 0, 0, 0, 0, t.Location())
|
||||
case "month", "months":
|
||||
truncated = time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, t.Location())
|
||||
case "quarter", "quarters":
|
||||
month := t.Month()
|
||||
quarterMonth := ((int(month)-1)/3)*3 + 1
|
||||
truncated = time.Date(t.Year(), time.Month(quarterMonth), 1, 0, 0, 0, 0, t.Location())
|
||||
case "year", "years":
|
||||
truncated = time.Date(t.Year(), 1, 1, 0, 0, 0, 0, t.Location())
|
||||
case "decade", "decades":
|
||||
year := (t.Year()/10) * 10
|
||||
truncated = time.Date(year, 1, 1, 0, 0, 0, 0, t.Location())
|
||||
case "century", "centuries":
|
||||
year := ((t.Year()-1)/100)*100 + 1
|
||||
truncated = time.Date(year, 1, 1, 0, 0, 0, 0, t.Location())
|
||||
case "millennium", "millennia":
|
||||
year := ((t.Year()-1)/1000)*1000 + 1
|
||||
truncated = time.Date(year, 1, 1, 0, 0, 0, 0, t.Location())
|
||||
default:
|
||||
return nil, fmt.Errorf("unsupported date truncation precision: %s", precision)
|
||||
}
|
||||
|
||||
// Return as TimestampValue
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_TimestampValue{
|
||||
TimestampValue: &schema_pb.TimestampValue{
|
||||
TimestampMicros: truncated.UnixMicro(),
|
||||
},
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// ===============================
|
||||
// STRING FUNCTIONS
|
||||
// ===============================
|
||||
|
||||
// Length returns the length of a string
|
||||
func (e *SQLEngine) Length(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("LENGTH function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LENGTH function conversion error: %v", err)
|
||||
}
|
||||
|
||||
length := int64(len(str))
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: length},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Upper converts a string to uppercase
|
||||
func (e *SQLEngine) Upper(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("UPPER function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("UPPER function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.ToUpper(str)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Lower converts a string to lowercase
|
||||
func (e *SQLEngine) Lower(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("LOWER function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LOWER function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.ToLower(str)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Trim removes leading and trailing whitespace from a string
|
||||
func (e *SQLEngine) Trim(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("TRIM function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("TRIM function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.TrimSpace(str)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// LTrim removes leading whitespace from a string
|
||||
func (e *SQLEngine) LTrim(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("LTRIM function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LTRIM function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.TrimLeft(str, " \t\n\r")},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// RTrim removes trailing whitespace from a string
|
||||
func (e *SQLEngine) RTrim(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("RTRIM function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("RTRIM function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.TrimRight(str, " \t\n\r")},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Substring extracts a substring from a string
|
||||
func (e *SQLEngine) Substring(value *schema_pb.Value, start *schema_pb.Value, length ...*schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil || start == nil {
|
||||
return nil, fmt.Errorf("SUBSTRING function requires non-null value and start position")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("SUBSTRING function value conversion error: %v", err)
|
||||
}
|
||||
|
||||
startPos, err := e.valueToInt64(start)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("SUBSTRING function start position conversion error: %v", err)
|
||||
}
|
||||
|
||||
// Convert to 0-based indexing (SQL uses 1-based)
|
||||
if startPos < 1 {
|
||||
startPos = 1
|
||||
}
|
||||
startIdx := int(startPos - 1)
|
||||
|
||||
if startIdx >= len(str) {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: ""},
|
||||
}, nil
|
||||
}
|
||||
|
||||
var result string
|
||||
if len(length) > 0 && length[0] != nil {
|
||||
lengthVal, err := e.valueToInt64(length[0])
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("SUBSTRING function length conversion error: %v", err)
|
||||
}
|
||||
|
||||
if lengthVal <= 0 {
|
||||
result = ""
|
||||
} else {
|
||||
endIdx := startIdx + int(lengthVal)
|
||||
if endIdx > len(str) {
|
||||
endIdx = len(str)
|
||||
}
|
||||
result = str[startIdx:endIdx]
|
||||
}
|
||||
} else {
|
||||
result = str[startIdx:]
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: result},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Concat concatenates multiple strings
|
||||
func (e *SQLEngine) Concat(values ...*schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if len(values) == 0 {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: ""},
|
||||
}, nil
|
||||
}
|
||||
|
||||
var result strings.Builder
|
||||
for i, value := range values {
|
||||
if value == nil {
|
||||
continue // Skip null values
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("CONCAT function value %d conversion error: %v", i, err)
|
||||
}
|
||||
result.WriteString(str)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: result.String()},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Replace replaces all occurrences of a substring with another substring
|
||||
func (e *SQLEngine) Replace(value, oldStr, newStr *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil || oldStr == nil || newStr == nil {
|
||||
return nil, fmt.Errorf("REPLACE function requires non-null values")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("REPLACE function value conversion error: %v", err)
|
||||
}
|
||||
|
||||
old, err := e.valueToString(oldStr)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("REPLACE function old string conversion error: %v", err)
|
||||
}
|
||||
|
||||
new, err := e.valueToString(newStr)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("REPLACE function new string conversion error: %v", err)
|
||||
}
|
||||
|
||||
result := strings.ReplaceAll(str, old, new)
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: result},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Position returns the position of a substring in a string (1-based, 0 if not found)
|
||||
func (e *SQLEngine) Position(substring, value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if substring == nil || value == nil {
|
||||
return nil, fmt.Errorf("POSITION function requires non-null values")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("POSITION function string conversion error: %v", err)
|
||||
}
|
||||
|
||||
substr, err := e.valueToString(substring)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("POSITION function substring conversion error: %v", err)
|
||||
}
|
||||
|
||||
pos := strings.Index(str, substr)
|
||||
if pos == -1 {
|
||||
pos = 0 // SQL returns 0 for not found
|
||||
} else {
|
||||
pos = pos + 1 // Convert to 1-based indexing
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: int64(pos)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Left returns the leftmost characters of a string
|
||||
func (e *SQLEngine) Left(value *schema_pb.Value, length *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil || length == nil {
|
||||
return nil, fmt.Errorf("LEFT function requires non-null values")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LEFT function string conversion error: %v", err)
|
||||
}
|
||||
|
||||
lengthVal, err := e.valueToInt64(length)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LEFT function length conversion error: %v", err)
|
||||
}
|
||||
|
||||
if lengthVal <= 0 {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: ""},
|
||||
}, nil
|
||||
}
|
||||
|
||||
if int(lengthVal) >= len(str) {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: str},
|
||||
}, nil
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: str[:lengthVal]},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Right returns the rightmost characters of a string
|
||||
func (e *SQLEngine) Right(value *schema_pb.Value, length *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil || length == nil {
|
||||
return nil, fmt.Errorf("RIGHT function requires non-null values")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("RIGHT function string conversion error: %v", err)
|
||||
}
|
||||
|
||||
lengthVal, err := e.valueToInt64(length)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("RIGHT function length conversion error: %v", err)
|
||||
}
|
||||
|
||||
if lengthVal <= 0 {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: ""},
|
||||
}, nil
|
||||
}
|
||||
|
||||
if int(lengthVal) >= len(str) {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: str},
|
||||
}, nil
|
||||
}
|
||||
|
||||
startPos := len(str) - int(lengthVal)
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: str[startPos:]},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Reverse reverses a string
|
||||
func (e *SQLEngine) Reverse(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("REVERSE function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("REVERSE function conversion error: %v", err)
|
||||
}
|
||||
|
||||
// Reverse the string rune by rune to handle Unicode correctly
|
||||
runes := []rune(str)
|
||||
for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
|
||||
runes[i], runes[j] = runes[j], runes[i]
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: string(runes)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Helper function to convert schema_pb.Value to string
|
||||
func (e *SQLEngine) valueToString(value *schema_pb.Value) (string, error) {
|
||||
switch v := value.Kind.(type) {
|
||||
case *schema_pb.Value_StringValue:
|
||||
return v.StringValue, nil
|
||||
case *schema_pb.Value_Int32Value:
|
||||
return strconv.FormatInt(int64(v.Int32Value), 10), nil
|
||||
case *schema_pb.Value_Int64Value:
|
||||
return strconv.FormatInt(v.Int64Value, 10), nil
|
||||
case *schema_pb.Value_FloatValue:
|
||||
return strconv.FormatFloat(float64(v.FloatValue), 'g', -1, 32), nil
|
||||
case *schema_pb.Value_DoubleValue:
|
||||
return strconv.FormatFloat(v.DoubleValue, 'g', -1, 64), nil
|
||||
case *schema_pb.Value_BoolValue:
|
||||
if v.BoolValue {
|
||||
return "true", nil
|
||||
}
|
||||
return "false", nil
|
||||
case *schema_pb.Value_BytesValue:
|
||||
return string(v.BytesValue), nil
|
||||
default:
|
||||
return "", fmt.Errorf("cannot convert value type to string")
|
||||
}
|
||||
}
|
||||
|
||||
// Helper function to convert schema_pb.Value to int64
|
||||
func (e *SQLEngine) valueToInt64(value *schema_pb.Value) (int64, error) {
|
||||
switch v := value.Kind.(type) {
|
||||
case *schema_pb.Value_Int32Value:
|
||||
return int64(v.Int32Value), nil
|
||||
case *schema_pb.Value_Int64Value:
|
||||
return v.Int64Value, nil
|
||||
case *schema_pb.Value_FloatValue:
|
||||
return int64(v.FloatValue), nil
|
||||
case *schema_pb.Value_DoubleValue:
|
||||
return int64(v.DoubleValue), nil
|
||||
case *schema_pb.Value_StringValue:
|
||||
if i, err := strconv.ParseInt(v.StringValue, 10, 64); err == nil {
|
||||
return i, nil
|
||||
}
|
||||
return 0, fmt.Errorf("cannot convert string '%s' to integer", v.StringValue)
|
||||
default:
|
||||
return 0, fmt.Errorf("cannot convert value type to integer")
|
||||
}
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
333
weed/query/engine/string_functions.go
Normal file
333
weed/query/engine/string_functions.go
Normal file
@@ -0,0 +1,333 @@
|
||||
package engine
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
)
|
||||
|
||||
// ===============================
|
||||
// STRING FUNCTIONS
|
||||
// ===============================
|
||||
|
||||
// Length returns the length of a string
|
||||
func (e *SQLEngine) Length(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("LENGTH function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LENGTH function conversion error: %v", err)
|
||||
}
|
||||
|
||||
length := int64(len(str))
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: length},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Upper converts a string to uppercase
|
||||
func (e *SQLEngine) Upper(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("UPPER function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("UPPER function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.ToUpper(str)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Lower converts a string to lowercase
|
||||
func (e *SQLEngine) Lower(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("LOWER function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LOWER function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.ToLower(str)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Trim removes leading and trailing whitespace from a string
|
||||
func (e *SQLEngine) Trim(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("TRIM function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("TRIM function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.TrimSpace(str)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// LTrim removes leading whitespace from a string
|
||||
func (e *SQLEngine) LTrim(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("LTRIM function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LTRIM function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.TrimLeft(str, " \t\n\r")},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// RTrim removes trailing whitespace from a string
|
||||
func (e *SQLEngine) RTrim(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("RTRIM function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("RTRIM function conversion error: %v", err)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: strings.TrimRight(str, " \t\n\r")},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Substring extracts a substring from a string
|
||||
func (e *SQLEngine) Substring(value *schema_pb.Value, start *schema_pb.Value, length ...*schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil || start == nil {
|
||||
return nil, fmt.Errorf("SUBSTRING function requires non-null value and start position")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("SUBSTRING function value conversion error: %v", err)
|
||||
}
|
||||
|
||||
startPos, err := e.valueToInt64(start)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("SUBSTRING function start position conversion error: %v", err)
|
||||
}
|
||||
|
||||
// Convert to 0-based indexing (SQL uses 1-based)
|
||||
if startPos < 1 {
|
||||
startPos = 1
|
||||
}
|
||||
startIdx := int(startPos - 1)
|
||||
|
||||
if startIdx >= len(str) {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: ""},
|
||||
}, nil
|
||||
}
|
||||
|
||||
var result string
|
||||
if len(length) > 0 && length[0] != nil {
|
||||
lengthVal, err := e.valueToInt64(length[0])
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("SUBSTRING function length conversion error: %v", err)
|
||||
}
|
||||
|
||||
if lengthVal <= 0 {
|
||||
result = ""
|
||||
} else {
|
||||
endIdx := startIdx + int(lengthVal)
|
||||
if endIdx > len(str) {
|
||||
endIdx = len(str)
|
||||
}
|
||||
result = str[startIdx:endIdx]
|
||||
}
|
||||
} else {
|
||||
result = str[startIdx:]
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: result},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Concat concatenates multiple strings
|
||||
func (e *SQLEngine) Concat(values ...*schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if len(values) == 0 {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: ""},
|
||||
}, nil
|
||||
}
|
||||
|
||||
var result strings.Builder
|
||||
for i, value := range values {
|
||||
if value == nil {
|
||||
continue // Skip null values
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("CONCAT function value %d conversion error: %v", i, err)
|
||||
}
|
||||
result.WriteString(str)
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: result.String()},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Replace replaces all occurrences of a substring with another substring
|
||||
func (e *SQLEngine) Replace(value, oldStr, newStr *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil || oldStr == nil || newStr == nil {
|
||||
return nil, fmt.Errorf("REPLACE function requires non-null values")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("REPLACE function value conversion error: %v", err)
|
||||
}
|
||||
|
||||
old, err := e.valueToString(oldStr)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("REPLACE function old string conversion error: %v", err)
|
||||
}
|
||||
|
||||
new, err := e.valueToString(newStr)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("REPLACE function new string conversion error: %v", err)
|
||||
}
|
||||
|
||||
result := strings.ReplaceAll(str, old, new)
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: result},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Position returns the position of a substring in a string (1-based, 0 if not found)
|
||||
func (e *SQLEngine) Position(substring, value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if substring == nil || value == nil {
|
||||
return nil, fmt.Errorf("POSITION function requires non-null values")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("POSITION function string conversion error: %v", err)
|
||||
}
|
||||
|
||||
substr, err := e.valueToString(substring)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("POSITION function substring conversion error: %v", err)
|
||||
}
|
||||
|
||||
pos := strings.Index(str, substr)
|
||||
if pos == -1 {
|
||||
pos = 0 // SQL returns 0 for not found
|
||||
} else {
|
||||
pos = pos + 1 // Convert to 1-based indexing
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_Int64Value{Int64Value: int64(pos)},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Left returns the leftmost characters of a string
|
||||
func (e *SQLEngine) Left(value *schema_pb.Value, length *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil || length == nil {
|
||||
return nil, fmt.Errorf("LEFT function requires non-null values")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LEFT function string conversion error: %v", err)
|
||||
}
|
||||
|
||||
lengthVal, err := e.valueToInt64(length)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("LEFT function length conversion error: %v", err)
|
||||
}
|
||||
|
||||
if lengthVal <= 0 {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: ""},
|
||||
}, nil
|
||||
}
|
||||
|
||||
if int(lengthVal) >= len(str) {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: str},
|
||||
}, nil
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: str[:lengthVal]},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Right returns the rightmost characters of a string
|
||||
func (e *SQLEngine) Right(value *schema_pb.Value, length *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil || length == nil {
|
||||
return nil, fmt.Errorf("RIGHT function requires non-null values")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("RIGHT function string conversion error: %v", err)
|
||||
}
|
||||
|
||||
lengthVal, err := e.valueToInt64(length)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("RIGHT function length conversion error: %v", err)
|
||||
}
|
||||
|
||||
if lengthVal <= 0 {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: ""},
|
||||
}, nil
|
||||
}
|
||||
|
||||
if int(lengthVal) >= len(str) {
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: str},
|
||||
}, nil
|
||||
}
|
||||
|
||||
startPos := len(str) - int(lengthVal)
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: str[startPos:]},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Reverse reverses a string
|
||||
func (e *SQLEngine) Reverse(value *schema_pb.Value) (*schema_pb.Value, error) {
|
||||
if value == nil {
|
||||
return nil, fmt.Errorf("REVERSE function requires non-null value")
|
||||
}
|
||||
|
||||
str, err := e.valueToString(value)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("REVERSE function conversion error: %v", err)
|
||||
}
|
||||
|
||||
// Reverse the string rune by rune to handle Unicode correctly
|
||||
runes := []rune(str)
|
||||
for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
|
||||
runes[i], runes[j] = runes[j], runes[i]
|
||||
}
|
||||
|
||||
return &schema_pb.Value{
|
||||
Kind: &schema_pb.Value_StringValue{StringValue: string(runes)},
|
||||
}, nil
|
||||
}
|
||||
271
weed/query/engine/string_functions_test.go
Normal file
271
weed/query/engine/string_functions_test.go
Normal file
@@ -0,0 +1,271 @@
|
||||
package engine
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/seaweedfs/seaweedfs/weed/pb/schema_pb"
|
||||
)
|
||||
|
||||
func TestStringFunctions(t *testing.T) {
|
||||
engine := NewTestSQLEngine()
|
||||
|
||||
t.Run("LENGTH function tests", func(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
value *schema_pb.Value
|
||||
expected int64
|
||||
expectErr bool
|
||||
}{
|
||||
{
|
||||
name: "Length of string",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello World"}},
|
||||
expected: 11,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Length of empty string",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: ""}},
|
||||
expected: 0,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Length of number",
|
||||
value: &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 12345}},
|
||||
expected: 5,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: "Length of null value",
|
||||
value: nil,
|
||||
expected: 0,
|
||||
expectErr: true,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
result, err := engine.Length(tt.value)
|
||||
|
||||
if tt.expectErr {
|
||||
if err == nil {
|
||||
t.Errorf("Expected error but got none")
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
t.Errorf("Unexpected error: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
intVal, ok := result.Kind.(*schema_pb.Value_Int64Value)
|
||||
if !ok {
|
||||
t.Errorf("LENGTH should return int64 value, got %T", result.Kind)
|
||||
return
|
||||
}
|
||||
|
||||
if intVal.Int64Value != tt.expected {
|
||||
t.Errorf("Expected %d, got %d", tt.expected, intVal.Int64Value)
|
||||
}
|
||||
})
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("UPPER/LOWER function tests", func(t *testing.T) {
|
||||
// Test UPPER
|
||||
result, err := engine.Upper(&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello World"}})
|
||||
if err != nil {
|
||||
t.Errorf("UPPER failed: %v", err)
|
||||
}
|
||||
stringVal, _ := result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "HELLO WORLD" {
|
||||
t.Errorf("Expected 'HELLO WORLD', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
|
||||
// Test LOWER
|
||||
result, err = engine.Lower(&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello World"}})
|
||||
if err != nil {
|
||||
t.Errorf("LOWER failed: %v", err)
|
||||
}
|
||||
stringVal, _ = result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "hello world" {
|
||||
t.Errorf("Expected 'hello world', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("TRIM function tests", func(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
function func(*schema_pb.Value) (*schema_pb.Value, error)
|
||||
input string
|
||||
expected string
|
||||
}{
|
||||
{"TRIM whitespace", engine.Trim, " Hello World ", "Hello World"},
|
||||
{"LTRIM whitespace", engine.LTrim, " Hello World ", "Hello World "},
|
||||
{"RTRIM whitespace", engine.RTrim, " Hello World ", " Hello World"},
|
||||
{"TRIM with tabs and newlines", engine.Trim, "\t\nHello\t\n", "Hello"},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
result, err := tt.function(&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: tt.input}})
|
||||
if err != nil {
|
||||
t.Errorf("Function failed: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
stringVal, ok := result.Kind.(*schema_pb.Value_StringValue)
|
||||
if !ok {
|
||||
t.Errorf("Function should return string value, got %T", result.Kind)
|
||||
return
|
||||
}
|
||||
|
||||
if stringVal.StringValue != tt.expected {
|
||||
t.Errorf("Expected '%s', got '%s'", tt.expected, stringVal.StringValue)
|
||||
}
|
||||
})
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("SUBSTRING function tests", func(t *testing.T) {
|
||||
testStr := &schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello World"}}
|
||||
|
||||
// Test substring with start and length
|
||||
result, err := engine.Substring(testStr,
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 7}},
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}})
|
||||
if err != nil {
|
||||
t.Errorf("SUBSTRING failed: %v", err)
|
||||
}
|
||||
stringVal, _ := result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "World" {
|
||||
t.Errorf("Expected 'World', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
|
||||
// Test substring with just start position
|
||||
result, err = engine.Substring(testStr,
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 7}})
|
||||
if err != nil {
|
||||
t.Errorf("SUBSTRING failed: %v", err)
|
||||
}
|
||||
stringVal, _ = result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "World" {
|
||||
t.Errorf("Expected 'World', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("CONCAT function tests", func(t *testing.T) {
|
||||
result, err := engine.Concat(
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello"}},
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: " "}},
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "World"}},
|
||||
)
|
||||
if err != nil {
|
||||
t.Errorf("CONCAT failed: %v", err)
|
||||
}
|
||||
stringVal, _ := result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "Hello World" {
|
||||
t.Errorf("Expected 'Hello World', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
|
||||
// Test with mixed types
|
||||
result, err = engine.Concat(
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Number: "}},
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 42}},
|
||||
)
|
||||
if err != nil {
|
||||
t.Errorf("CONCAT failed: %v", err)
|
||||
}
|
||||
stringVal, _ = result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "Number: 42" {
|
||||
t.Errorf("Expected 'Number: 42', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("REPLACE function tests", func(t *testing.T) {
|
||||
result, err := engine.Replace(
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello World World"}},
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "World"}},
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Universe"}},
|
||||
)
|
||||
if err != nil {
|
||||
t.Errorf("REPLACE failed: %v", err)
|
||||
}
|
||||
stringVal, _ := result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "Hello Universe Universe" {
|
||||
t.Errorf("Expected 'Hello Universe Universe', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("POSITION function tests", func(t *testing.T) {
|
||||
result, err := engine.Position(
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "World"}},
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello World"}},
|
||||
)
|
||||
if err != nil {
|
||||
t.Errorf("POSITION failed: %v", err)
|
||||
}
|
||||
intVal, _ := result.Kind.(*schema_pb.Value_Int64Value)
|
||||
if intVal.Int64Value != 7 {
|
||||
t.Errorf("Expected 7, got %d", intVal.Int64Value)
|
||||
}
|
||||
|
||||
// Test not found
|
||||
result, err = engine.Position(
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "NotFound"}},
|
||||
&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello World"}},
|
||||
)
|
||||
if err != nil {
|
||||
t.Errorf("POSITION failed: %v", err)
|
||||
}
|
||||
intVal, _ = result.Kind.(*schema_pb.Value_Int64Value)
|
||||
if intVal.Int64Value != 0 {
|
||||
t.Errorf("Expected 0 for not found, got %d", intVal.Int64Value)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("LEFT/RIGHT function tests", func(t *testing.T) {
|
||||
testStr := &schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello World"}}
|
||||
|
||||
// Test LEFT
|
||||
result, err := engine.Left(testStr, &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}})
|
||||
if err != nil {
|
||||
t.Errorf("LEFT failed: %v", err)
|
||||
}
|
||||
stringVal, _ := result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "Hello" {
|
||||
t.Errorf("Expected 'Hello', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
|
||||
// Test RIGHT
|
||||
result, err = engine.Right(testStr, &schema_pb.Value{Kind: &schema_pb.Value_Int64Value{Int64Value: 5}})
|
||||
if err != nil {
|
||||
t.Errorf("RIGHT failed: %v", err)
|
||||
}
|
||||
stringVal, _ = result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "World" {
|
||||
t.Errorf("Expected 'World', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("REVERSE function tests", func(t *testing.T) {
|
||||
result, err := engine.Reverse(&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "Hello"}})
|
||||
if err != nil {
|
||||
t.Errorf("REVERSE failed: %v", err)
|
||||
}
|
||||
stringVal, _ := result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "olleH" {
|
||||
t.Errorf("Expected 'olleH', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
|
||||
// Test with Unicode
|
||||
result, err = engine.Reverse(&schema_pb.Value{Kind: &schema_pb.Value_StringValue{StringValue: "🙂👍"}})
|
||||
if err != nil {
|
||||
t.Errorf("REVERSE failed: %v", err)
|
||||
}
|
||||
stringVal, _ = result.Kind.(*schema_pb.Value_StringValue)
|
||||
if stringVal.StringValue != "👍🙂" {
|
||||
t.Errorf("Expected '👍🙂', got '%s'", stringVal.StringValue)
|
||||
}
|
||||
})
|
||||
}
|
||||
Reference in New Issue
Block a user