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2026-07-13 12:32:25 +08:00

46 lines
1.3 KiB
Go

// Copyright 2023 Dolthub, Inc.
//
// 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 ast
import (
vitess "github.com/dolthub/vitess/go/vt/sqlparser"
"github.com/dolthub/doltgresql/postgres/parser/sem/tree"
)
// nodeRenameColumn handles *tree.RenameColumn nodes.
func nodeRenameColumn(ctx *Context, node *tree.RenameColumn) (*vitess.AlterTable, error) {
if node == nil {
return nil, nil
}
tableName, err := nodeTableName(ctx, &node.Table)
if err != nil {
return nil, err
}
return &vitess.AlterTable{
Table: tableName,
Statements: []*vitess.DDL{
{
Action: vitess.AlterStr,
ColumnAction: vitess.RenameStr,
Table: tableName,
Column: vitess.NewColIdent(string(node.Name)),
ToColumn: vitess.NewColIdent(string(node.NewName)),
IfExists: node.IfExists,
},
},
}, nil
}