feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/infra/contract/rdb/entity/const.go

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package entity
+
+type DataType string
+
+const (
+	TypeInt       DataType = "INT"
+	TypeVarchar   DataType = "VARCHAR"
+	TypeText      DataType = "TEXT"
+	TypeBoolean   DataType = "BOOLEAN"
+	TypeJson      DataType = "JSON"
+	TypeTimestamp DataType = "TIMESTAMP"
+	TypeFloat     DataType = "FLOAT"
+	TypeBigInt    DataType = "BIGINT"
+	TypeDouble    DataType = "DOUBLE"
+)
+
+type IndexType string
+
+const (
+	PrimaryKey IndexType = "PRIMARY KEY"
+	UniqueKey  IndexType = "UNIQUE KEY"
+	NormalKey  IndexType = "KEY"
+)
+
+// AlterTableAction 定义修改表的动作类型
+type AlterTableAction string
+
+const (
+	AddColumn    AlterTableAction = "ADD COLUMN"
+	DropColumn   AlterTableAction = "DROP COLUMN"
+	ModifyColumn AlterTableAction = "MODIFY COLUMN"
+	RenameColumn AlterTableAction = "RENAME COLUMN"
+	AddIndex     AlterTableAction = "ADD INDEX"
+)
+
+type LogicalOperator string
+
+const (
+	AND LogicalOperator = "AND"
+	OR  LogicalOperator = "OR"
+)
+
+type Operator string
+
+const (
+	OperatorEqual        Operator = "="
+	OperatorNotEqual     Operator = "!="
+	OperatorGreater      Operator = ">"
+	OperatorGreaterEqual Operator = ">="
+	OperatorLess         Operator = "<"
+	OperatorLessEqual    Operator = "<="
+
+	OperatorLike    Operator = "LIKE"
+	OperatorNotLike Operator = "NOT LIKE"
+
+	OperatorIn    Operator = "IN"
+	OperatorNotIn Operator = "NOT IN"
+
+	OperatorIsNull    Operator = "IS NULL"
+	OperatorIsNotNull Operator = "IS NOT NULL"
+)
+
+type SortDirection string
+
+const (
+	SortDirectionAsc  SortDirection = "ASC"  // 升序
+	SortDirectionDesc SortDirection = "DESC" // 降序
+)
+
+type SQLType int32
+
+const (
+	SQLType_Parameterized SQLType = 0
+	SQLType_Raw           SQLType = 1 // Complete/raw SQL
+)