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rename_table.go
62 lines (53 loc) · 1.93 KB
/
rename_table.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 ast
import (
"strings"
)
import (
"github.com/pkg/errors"
)
var _ Statement = (*RenameTableStatement)(nil)
// RenameTableStatement represents mysql RENAME statement. see https://dev.mysql.com/doc/refman/8.0/en/rename-table.html
type RenameTableStatement struct {
TableToTables []*TableToTable
}
func NewRenameTableStmt() *RenameTableStatement {
return &RenameTableStatement{}
}
func (r *RenameTableStatement) Restore(flag RestoreFlag, sb *strings.Builder, args *[]int) error {
sb.WriteString("RENAME TABLE ")
for index, table := range r.TableToTables {
if index != 0 {
sb.WriteString(", ")
}
if err := table.OldTable.Restore(flag, sb, args); err != nil {
return errors.Wrapf(err, "an error occurred while restore RenameTableStatement.TableToTables[%d].OldTable", index)
}
sb.WriteString(" TO ")
if err := table.NewTable.Restore(flag, sb, args); err != nil {
return errors.Wrapf(err, "an error occurred while restore RenameTableStatement.TableToTables[%d].NewTable", index)
}
}
return nil
}
func (r *RenameTableStatement) Mode() SQLType {
return SQLTypeRenameTable
}
func (r *RenameTableStatement) CntParams() int {
return 0
}