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- 优化 string Contains 模糊查找 % 的情况；

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This commit is contained in:
2881099
2022-06-29 21:59:46 +08:00
parent 81406ba37a
commit e10fb8ffe5
39 changed files with 447 additions and 131 deletions
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8
Providers/FreeSql.Provider.Odbc/Dameng/OdbcDamengExpression.cs
View File

@@ -122,7 +122,7 @@ namespace FreeSql.Odbc.Dameng
tsc.SetMapColumnTmp(null);
var args1 = getExp(callExp.Arguments[argIndex]);
var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
tsc.isNotSetMapColumnTmp = true;
var left = objExp == null ? null : getExp(objExp);
tsc.isNotSetMapColumnTmp = false;
@@ -301,6 +301,12 @@ namespace FreeSql.Odbc.Dameng
case "Contains":
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value.Contains("%"))
{
if (exp.Method.Name == "StartsWith") return $"instr({args0Value}, {left}) = 1";
if (exp.Method.Name == "EndsWith") return $"instr({args0Value}, {left}) = length({args0Value})";
return $"instr({args0Value}, {left}) > 0";
}
if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(to_char({args0Value})||'%')")}";
if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'||to_char({args0Value}))")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";

2
Providers/FreeSql.Provider.Odbc/Default/OdbcExpression.cs
View File

@@ -122,7 +122,7 @@ namespace FreeSql.Odbc.Default
tsc.SetMapColumnTmp(null);
var args1 = getExp(callExp.Arguments[argIndex]);
var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
tsc.isNotSetMapColumnTmp = true;
var left = objExp == null ? null : getExp(objExp);
tsc.isNotSetMapColumnTmp = false;

8
Providers/FreeSql.Provider.Odbc/KingbaseES/OdbcKingbaseESExpression.cs
View File

@@ -146,7 +146,7 @@ namespace FreeSql.Odbc.KingbaseES
tsc.SetMapColumnTmp(null);
var args1 = getExp(callExp.Arguments[argIndex]);
var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
tsc.isNotSetMapColumnTmp = true;
left = objExp == null ? null : getExp(objExp);
tsc.isNotSetMapColumnTmp = false;
@@ -368,6 +368,12 @@ namespace FreeSql.Odbc.KingbaseES
case "Contains":
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value.Contains("%"))
{
if (exp.Method.Name == "StartsWith") return $"strpos({args0Value}, {left}) = 1";
if (exp.Method.Name == "EndsWith") return $"strpos({args0Value}, {left}) = char_length({args0Value})";
return $"strpos({args0Value}, {left}) > 0";
}
var likeOpt = "LIKE";
if (exp.Arguments.Count > 1)
{

8
Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs
View File

@@ -118,7 +118,7 @@ namespace FreeSql.Odbc.MySql
tsc.SetMapColumnTmp(null);
var args1 = getExp(callExp.Arguments[argIndex]);
var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
tsc.isNotSetMapColumnTmp = true;
var left = objExp == null ? null : getExp(objExp);
tsc.isNotSetMapColumnTmp = false;
@@ -298,6 +298,12 @@ namespace FreeSql.Odbc.MySql
case "Contains":
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value.Contains("%"))
{
if (exp.Method.Name == "StartsWith") return $"locate({args0Value}, {left}) = 1";
if (exp.Method.Name == "EndsWith") return $"locate({args0Value}, {left}) = char_length({args0Value})";
return $"locate({args0Value}, {left}) > 0";
}
if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"concat({args0Value}, '%')")}";
if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"concat('%', {args0Value})")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";

8
Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleExpression.cs
View File

@@ -122,7 +122,7 @@ namespace FreeSql.Odbc.Oracle
tsc.SetMapColumnTmp(null);
var args1 = getExp(callExp.Arguments[argIndex]);
var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
tsc.isNotSetMapColumnTmp = true;
var left = objExp == null ? null : getExp(objExp);
tsc.isNotSetMapColumnTmp = false;
@@ -301,6 +301,12 @@ namespace FreeSql.Odbc.Oracle
case "Contains":
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value.Contains("%"))
{
if (exp.Method.Name == "StartsWith") return $"instr({args0Value}, {left}) = 1";
if (exp.Method.Name == "EndsWith") return $"instr({args0Value}, {left}) = length({args0Value})";
return $"instr({args0Value}, {left}) > 0";
}
if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(to_char({args0Value})||'%')")}";
if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'||to_char({args0Value}))")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";

8
Providers/FreeSql.Provider.Odbc/PostgreSQL/OdbcPostgreSQLExpression.cs
View File

@@ -146,7 +146,7 @@ namespace FreeSql.Odbc.PostgreSQL
tsc.SetMapColumnTmp(null);
var args1 = getExp(callExp.Arguments[argIndex]);
var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
tsc.isNotSetMapColumnTmp = true;
left = objExp == null ? null : getExp(objExp);
tsc.isNotSetMapColumnTmp = false;
@@ -390,6 +390,12 @@ namespace FreeSql.Odbc.PostgreSQL
case "Contains":
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value.Contains("%"))
{
if (exp.Method.Name == "StartsWith") return $"strpos({args0Value}, {left}) = 1";
if (exp.Method.Name == "EndsWith") return $"strpos({args0Value}, {left}) = char_length({args0Value})";
return $"strpos({args0Value}, {left}) > 0";
}
var likeOpt = "LIKE";
if (exp.Arguments.Count > 1)
{

8
Providers/FreeSql.Provider.Odbc/SqlServer/OdbcSqlServerExpression.cs
View File

@@ -128,7 +128,7 @@ namespace FreeSql.Odbc.SqlServer
tsc.SetMapColumnTmp(null);
var args1 = getExp(callExp.Arguments[argIndex]);
var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 子查询 bug、以及 #1173 参数化 bug
tsc.isNotSetMapColumnTmp = true;
var left = objExp == null ? null : getExp(objExp);
tsc.isNotSetMapColumnTmp = false;
@@ -321,6 +321,12 @@ namespace FreeSql.Odbc.SqlServer
case "Contains":
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value.Contains("%"))
{
if (exp.Method.Name == "StartsWith") return $"charindex({args0Value}, {left}) = 1";
if (exp.Method.Name == "EndsWith") return $"charindex({args0Value}, {left}) = len({args0Value})";
return $"charindex({args0Value}, {left}) > 0";
}
if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(cast({args0Value} as nvarchar(max))+'%')")}";
if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'+cast({args0Value} as nvarchar(max)))")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";