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- 增加 表达式树函数解析 byte[] Length；#505

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This commit is contained in:
2881099
2020-10-31 07:03:00 +08:00
parent b86676df4e
commit 454eb8cc44
19 changed files with 369 additions and 20 deletions
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10
Providers/FreeSql.Provider.ShenTong/ShenTongExpression.cs
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@@ -19,6 +19,12 @@ namespace FreeSql.ShenTong
Func<Expression, string> getExp = exparg => ExpressionLambdaToSql(exparg, tsc);
switch (exp.NodeType)
{
case ExpressionType.ArrayLength:
var arrOper = (exp as UnaryExpression)?.Operand;
var arrOperExp = getExp(arrOper);
if (arrOperExp.StartsWith("(") || arrOperExp.EndsWith(")")) return $"array_length(array[{arrOperExp.TrimStart('(').TrimEnd(')')}],1)";
//if (arrOper.Type == typeof(byte[])) return $"octet_length({getExp(arrOper)})"; #505
return $"case when {arrOperExp} is null then 0 else array_length({arrOperExp},1) end";
case ExpressionType.Convert:
var operandExp = (exp as UnaryExpression)?.Operand;
var gentype = exp.Type.NullableTypeOrThis();
@@ -45,10 +51,6 @@ namespace FreeSql.ShenTong
}
}
break;
case ExpressionType.ArrayLength:
var arrOperExp = getExp((exp as UnaryExpression).Operand);
if (arrOperExp.StartsWith("(") || arrOperExp.EndsWith(")")) return $"array_length(array[{arrOperExp.TrimStart('(').TrimEnd(')')}],1)";
return $"case when {arrOperExp} is null then 0 else array_length({arrOperExp},1) end";
case ExpressionType.Call:
var callExp = exp as MethodCallExpression;