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- 优化 LIKE 表达式解析 #1870； - 移除 OdbcDameng/OdbcKingbaseES；

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This commit is contained in:
2881099
2024-08-09 20:35:06 +08:00
parent 60b5ed56b8
commit 040f9bdabe
116 changed files with 162 additions and 25246 deletions
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11
Providers/FreeSql.Provider.Custom/CustomExpression.cs
View File

@ -259,12 +259,13 @@ namespace FreeSql.Custom
case "StartsWith":
case "EndsWith":
case "Contains":
var leftLike = exp.Object.NodeType == ExpressionType.MemberAccess ? left : $"({left})";
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"({_common.StringConcat(new string[] { args0Value, "'%'" }, new[] { typeof(int), typeof(string) })})")}";
if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"({_common.StringConcat(new string[] { "'%'", args0Value }, new[] { typeof(string), typeof(int) })})")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
return $"({left}) LIKE ({_common.StringConcat(new string[] { "'%'", args0Value, "'%'" }, new[] { typeof(string), typeof(int), typeof(string)})})";
if (args0Value == "NULL") return $"{leftLike} IS NULL";
if (exp.Method.Name == "StartsWith") return $"{leftLike} LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"({_common.StringConcat(new string[] { args0Value, "'%'" }, new[] { typeof(int), typeof(string) })})")}";
if (exp.Method.Name == "EndsWith") return $"{leftLike} LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"({_common.StringConcat(new string[] { "'%'", args0Value }, new[] { typeof(string), typeof(int) })})")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"{leftLike} LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
return $"{leftLike} LIKE ({_common.StringConcat(new string[] { "'%'", args0Value, "'%'" }, new[] { typeof(string), typeof(int), typeof(string)})})";
case "ToLower": return _utils.Adapter.LambdaString_ToLower(left);
case "ToUpper": return _utils.Adapter.LambdaString_ToUpper(left);
case "Substring":

11
Providers/FreeSql.Provider.Custom/MySql/CustomMySqlExpression.cs
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@ -282,18 +282,19 @@ namespace FreeSql.Custom.MySql
case "StartsWith":
case "EndsWith":
case "Contains":
var leftLike = exp.Object.NodeType == ExpressionType.MemberAccess ? left : $"({left})";
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value == "NULL") return $"{leftLike} 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({left})-char_length({args0Value})+1";
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, "%")}";
return $"({left}) LIKE concat('%', {args0Value}, '%')";
if (exp.Method.Name == "StartsWith") return $"{leftLike} LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"concat({args0Value}, '%')")}";
if (exp.Method.Name == "EndsWith") return $"{leftLike} LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"concat('%', {args0Value})")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"{leftLike} LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
return $"{leftLike} LIKE concat('%', {args0Value}, '%')";
case "ToLower": return $"lower({left})";
case "ToUpper": return $"upper({left})";
case "Substring":

11
Providers/FreeSql.Provider.Custom/Oracle/CustomOracleExpression.cs
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@ -285,18 +285,19 @@ namespace FreeSql.Custom.Oracle
case "StartsWith":
case "EndsWith":
case "Contains":
var leftLike = exp.Object.NodeType == ExpressionType.MemberAccess ? left : $"({left})";
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value == "NULL") return $"{leftLike} IS NULL";
if (args0Value.Contains("%"))
{
if (exp.Method.Name == "StartsWith") return $"instr({left}, {args0Value}, 1, 1) = 1";
if (exp.Method.Name == "EndsWith") return $"instr({left}, {args0Value}, 1, 1) = length({left})-length({args0Value})+1";
return $"instr({left}, {args0Value}, 1, 1) > 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, "%")}";
return $"({left}) LIKE ('%'||to_char({args0Value})||'%')";
if (exp.Method.Name == "StartsWith") return $"{leftLike} LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(to_char({args0Value})||'%')")}";
if (exp.Method.Name == "EndsWith") return $"{leftLike} LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'||to_char({args0Value}))")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"{leftLike} LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
return $"{leftLike} LIKE ('%'||to_char({args0Value})||'%')";
case "ToLower": return $"lower({left})";
case "ToUpper": return $"upper({left})";
case "Substring":

11
Providers/FreeSql.Provider.Custom/PostgreSQL/CustomPostgreSQLExpression.cs
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@ -374,8 +374,9 @@ namespace FreeSql.Custom.PostgreSQL
case "StartsWith":
case "EndsWith":
case "Contains":
var leftLike = exp.Object.NodeType == ExpressionType.MemberAccess ? left : $"({left})";
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value == "NULL") return $"{leftLike} IS NULL";
if (args0Value.Contains("%"))
{
if (exp.Method.Name == "StartsWith") return $"strpos({left}, {args0Value}) = 1";
@ -388,10 +389,10 @@ namespace FreeSql.Custom.PostgreSQL
if (exp.Arguments[1].Type == typeof(bool) ||
exp.Arguments[1].Type == typeof(StringComparison)) likeOpt = "ILIKE";
}
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})::text || '%')";
if (exp.Method.Name == "StartsWith") return $"{leftLike} {likeOpt} {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(({args0Value})::text || '%')")}";
if (exp.Method.Name == "EndsWith") return $"{leftLike} {likeOpt} {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%' || ({args0Value})::text)")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"{leftLike} {likeOpt} {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
return $"{leftLike} {likeOpt} ('%' || ({args0Value})::text || '%')";
case "ToLower": return $"lower({left})";
case "ToUpper": return $"upper({left})";
case "Substring":

12
Providers/FreeSql.Provider.Custom/SqlServer/CustomSqlServerExpression.cs
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@ -305,18 +305,20 @@ namespace FreeSql.Custom.SqlServer
case "StartsWith":
case "EndsWith":
case "Contains":
var leftLike = exp.Object.NodeType == ExpressionType.MemberAccess ? left : $"({left})";
var args0Value = getExp(exp.Arguments[0]);
if (args0Value == "NULL") return $"({left}) IS NULL";
if (args0Value == "NULL") return $"{leftLike} 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({left})-len({args0Value})+1";
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, "%")}";
return $"({left}) LIKE ('%'+cast({args0Value} as nvarchar(max))+'%')";
if (exp.Method.Name == "StartsWith") return $"{leftLike} LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(cast({args0Value} as nvarchar(max))+'%')")}";
if (exp.Method.Name == "EndsWith") return $"{leftLike} LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'+cast({args0Value} as nvarchar(max)))")}";
if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"{leftLike} LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
if (args0Value.StartsWith("N'") && args0Value.EndsWith("'")) return $"{leftLike} LIKE {args0Value.Insert(2, "%").Insert(args0Value.Length, "%")}";
return $"{leftLike} LIKE ('%'+cast({args0Value} as nvarchar(max))+'%')";
case "ToLower": return $"lower({left})";
case "ToUpper": return $"upper({left})";
case "Substring":