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Analytic optimization

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This commit is contained in:
sunkaixuan 2017-08-13 18:19:31 +08:00
parent f329f299b1
commit 9675f05e81
4 changed files with 39 additions and 1 deletions
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4
Src/Asp.Net/SqlServerTest/UnitTest/Query/SingleQuery.cs
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@ -112,6 +112,10 @@ namespace OrmTest.UnitTest
var t11= db.Queryable<Student>().GroupBy("id").OrderBy("id").Select("id").ToSql();
base.Check("SELECT id FROM [STudent] GROUP BY id ORDER BY id ", null, t11.Key, t11.Value, "single t11 error");
var t12 = db.Queryable<Student>().Where(it=>it.Id!=null).ToSql();
base.Check("SELECT [ID],[SchoolId],[Name],[CreateTime] FROM [STudent] WHERE ( [ID] IS NOT NULL )", null, t12.Key, t12.Value, "single t12 error");
}
}
}

27
Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
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@ -170,6 +170,33 @@ namespace SqlSugar
this.Context.Result.Append(appendValue);
}
}
else if ((oppoSiteExpression is UnaryExpression && (oppoSiteExpression as UnaryExpression).Operand is MemberExpression)) {
string appendValue = Context.SqlParameterKeyWord
+ ((MemberExpression)(oppoSiteExpression as UnaryExpression).Operand).Member.Name
+ Context.ParameterIndex;
if (value.ObjToString() != "NULL" && !parameter.ValueIsNull)
{
this.Context.Parameters.Add(new SugarParameter(appendValue, value));
}
else
{
appendValue = value.ObjToString();
}
Context.ParameterIndex++;
appendValue = string.Format(" {0} ", appendValue);
if (isLeft == true)
{
appendValue += ExpressionConst.Format1 + parameter.BaseParameter.Index;
}
if (this.Context.Result.Contains(ExpressionConst.Format0))
{
this.Context.Result.Replace(ExpressionConst.Format0, appendValue);
}
else
{
this.Context.Result.Append(appendValue);
}
}
else
{
var appendValue = this.Context.SqlParameterKeyWord + ExpressionConst.Const + Context.ParameterIndex;

1
Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/BinaryExpressionResolve.cs
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@ -44,6 +44,7 @@ namespace SqlSugar
if (lsbs && parameter.ValueIsNull)
{
base.Context.Result.Replace(ExpressionConst.Format1 + parameter.Index, isEqual ? "IS" : "IS NOT");
base.Context.Result.Replace(ExpressionConst.Format1 + (parameter.Index+1), isEqual ? "IS" : "IS NOT");
}
else
{

8
Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/UnaryExpressionResolve.cs
View File

@ -24,7 +24,13 @@ namespace SqlSugar
base.Expression = expression.Operand;
var isMember = expression.Operand is MemberExpression;
var isConst = expression.Operand is ConstantExpression;
if (baseParameter.CurrentExpression is NewArrayExpression)
var offsetIsNull = (parameter.OppsiteExpression is ConstantExpression)
&&(parameter.OppsiteExpression as ConstantExpression).Value==null
&&ExpressionTool.IsComparisonOperator(expression.Operand);
if (isMember && offsetIsNull) {
Append(parameter, nodeType);
}
else if (baseParameter.CurrentExpression is NewArrayExpression)
{
Result(parameter, nodeType);
}