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Update 人大金仓 exp to sql & add datediff

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sunkaixuan
2022-03-24 19:59:50 +08:00
parent 6f59b48faa
commit 1b985038d3
1 changed files with 33 additions and 2 deletions
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35
Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/Kdbndp/SqlBuilder/KdbndpExpressionContext.cs
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@@ -90,6 +90,32 @@ namespace SqlSugar
} }
public class KdbndpMethod : DefaultDbMethod, IDbMethods public class KdbndpMethod : DefaultDbMethod, IDbMethods
{ {
public override string DateDiff(MethodCallExpressionModel model)
{
var parameter = (DateType)(Enum.Parse(typeof(DateType), model.Args[0].MemberValue.ObjToString()));
var begin = model.Args[1].MemberName;
var end = model.Args[2].MemberName;
switch (parameter)
{
case DateType.Year:
return $" ( DATE_PART('Year', {end} ) - DATE_PART('Year', {begin}) )";
case DateType.Month:
return $" ( ( DATE_PART('Year', {end} ) - DATE_PART('Year', {begin}) ) * 12 + (DATE_PART('month', {end}) - DATE_PART('month', {begin})) )";
case DateType.Day:
return $" ( DATE_PART('day', {end} - {begin}) )";
case DateType.Hour:
return $" ( ( DATE_PART('day', {end} - {begin}) ) * 24 + DATE_PART('hour', {end} - {begin} ) )";
case DateType.Minute:
return $" ( ( ( DATE_PART('day', {end} - {begin}) ) * 24 + DATE_PART('hour', {end} - {begin} ) ) * 60 + DATE_PART('minute', {end} - {begin} ) )";
case DateType.Second:
return $" ( ( ( DATE_PART('day', {end} - {begin}) ) * 24 + DATE_PART('hour', {end} - {begin} ) ) * 60 + DATE_PART('minute', {end} - {begin} ) ) * 60 + DATE_PART('minute', {end} - {begin} )";
case DateType.Millisecond:
break;
default:
break;
}
throw new Exception(parameter + " datediff no support");
}
public override string DateValue(MethodCallExpressionModel model) public override string DateValue(MethodCallExpressionModel model)
{ {
var parameter = model.Args[0]; var parameter = model.Args[0];
@@ -113,7 +139,7 @@ namespace SqlSugar
} }
if (parameter2.MemberValue.ObjToString() == DateType.Minute.ToString()) if (parameter2.MemberValue.ObjToString() == DateType.Minute.ToString())
{ {
format = "mm"; format = "mi";
} }
if (parameter2.MemberValue.ObjToString() == DateType.Second.ToString()) if (parameter2.MemberValue.ObjToString() == DateType.Second.ToString())
{ {
@@ -121,8 +147,13 @@ namespace SqlSugar
} }
if (parameter2.MemberValue.ObjToString() == DateType.Millisecond.ToString()) if (parameter2.MemberValue.ObjToString() == DateType.Millisecond.ToString())
{ {
format = "ss"; format = "ms";
} }
if (parameter2.MemberValue.ObjToString() == DateType.Weekday.ToString())
{
return $" extract(DOW FROM cast({parameter.MemberName} as TIMESTAMP)) ";
}
return string.Format(" cast( to_char({1},'{0}')as integer ) ", format, parameter.MemberName); return string.Format(" cast( to_char({1},'{0}')as integer ) ", format, parameter.MemberName);
} }