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- 增加 ISelect.AsTreeCte() 递归查询树表（向下或向下）；

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This commit is contained in:
28810
2020-06-27 17:01:51 +08:00
parent 4cde2a3280
commit 838dd83e47
17 changed files with 368 additions and 72 deletions
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14
Providers/FreeSql.Provider.Odbc/PostgreSQL/OdbcPostgreSQLExpression.cs
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@ -37,7 +37,7 @@ namespace FreeSql.Odbc.PostgreSQL
case "System.Int64": return $"({getExp(operandExp)})::int8";
case "System.SByte": return $"({getExp(operandExp)})::int2";
case "System.Single": return $"({getExp(operandExp)})::float4";
case "System.String": return $"({getExp(operandExp)})::varchar";
case "System.String": return $"({getExp(operandExp)})::text";
case "System.UInt16": return $"({getExp(operandExp)})::int2";
case "System.UInt32": return $"({getExp(operandExp)})::int4";
case "System.UInt64": return $"({getExp(operandExp)})::int8";
@ -87,7 +87,7 @@ namespace FreeSql.Odbc.PostgreSQL
if (callExp.Method.DeclaringType.IsNumberType()) return "random()";
return null;
case "ToString":
if (callExp.Object != null) return callExp.Arguments.Count == 0 ? $"({getExp(callExp.Object)})::varchar" : null;
if (callExp.Object != null) return callExp.Arguments.Count == 0 ? $"({getExp(callExp.Object)})::text" : null;
return null;
}
@ -354,10 +354,10 @@ namespace FreeSql.Odbc.PostgreSQL
if (exp.Arguments[1].Type == typeof(bool) ||
exp.Arguments[1].Type == typeof(StringComparison) && getExp(exp.Arguments[0]).Contains("IgnoreCase")) likeOpt = "ILIKE";
}
if (exp.Method.Name == "StartsWith") return $"({left}) {likeOpt} {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(({args0Value})::varchar || '%')")}";
if (exp.Method.Name == "EndsWith") return $"({left}) {likeOpt} {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%' || ({args0Value})::varchar)")}";
if (exp.Method.Name == "StartsWith") return $"({left}) {likeOpt} {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(({args0Value})::text || '%')")}";
if (exp.Method.Name == "EndsWith") return $"({left}) {likeOpt} {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%' || ({args0Value})::text)")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) {likeOpt} {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
return $"({left}) {likeOpt} ('%' || ({args0Value})::varchar || '%')";
return $"({left}) {likeOpt} ('%' || ({args0Value})::text || '%')";
case "ToLower": return $"lower({left})";
case "ToUpper": return $"upper({left})";
case "Substring":
@ -405,7 +405,7 @@ namespace FreeSql.Odbc.PostgreSQL
return left;
case "Replace": return $"replace({left}, {getExp(exp.Arguments[0])}, {getExp(exp.Arguments[1])})";
case "CompareTo": return $"case when {left} = {getExp(exp.Arguments[0])} then 0 when {left} > {getExp(exp.Arguments[0])} then 1 else -1 end";
case "Equals": return $"({left} = ({getExp(exp.Arguments[0])})::varchar)";
case "Equals": return $"({left} = ({getExp(exp.Arguments[0])})::text)";
}
}
return null;
@ -598,7 +598,7 @@ namespace FreeSql.Odbc.PostgreSQL
case "ToInt64": return $"({getExp(exp.Arguments[0])})::int8";
case "ToSByte": return $"({getExp(exp.Arguments[0])})::int2";
case "ToSingle": return $"({getExp(exp.Arguments[0])})::float4";
case "ToString": return $"({getExp(exp.Arguments[0])})::varchar";
case "ToString": return $"({getExp(exp.Arguments[0])})::text";
case "ToUInt16": return $"({getExp(exp.Arguments[0])})::int2";
case "ToUInt32": return $"({getExp(exp.Arguments[0])})::int4";
case "ToUInt64": return $"({getExp(exp.Arguments[0])})::int8";