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TDengine Support SqlFunc.DateDiff

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sunkaixuan
2023-08-19 16:06:10 +08:00
parent 2e999ee7ea
commit e8af71cb46
1 changed files with 4 additions and 23 deletions
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27
Src/Asp.NetCore2/SqlSugar.TDengineCore/TDengine/SqlBuilder/TDengineExpressionContext.cs
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@@ -147,29 +147,10 @@ namespace SqlSugar.TDengine
}
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('second', {end} - {begin} )";
case DateType.Millisecond:
break;
default:
break;
}
throw new Exception(parameter + " datediff no support");
var parameter = model.Args[0];
var parameter2 = model.Args[1];
var parameter3 = model.Args[2];
return string.Format(" TIMEDIFF({1},{2},1{0}) ", parameter.MemberValue.ObjToString().ToLower().First(), parameter2.MemberName, parameter3.MemberName);
}
public override string IIF(MethodCallExpressionModel model)
{