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

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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/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":