forked from ruiaylin/pgparser
/
delete.go
53 lines (48 loc) · 1.38 KB
/
delete.go
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// Copyright 2012, Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in licenses/BSD-vitess.txt.
// Portions of this file are additionally subject to the following
// license and copyright.
//
// Copyright 2015 The Cockroach Authors.
//
// Use of this software is governed by the Business Source License
// included in the file licenses/BSL.txt.
//
// As of the Change Date specified in that file, in accordance with
// the Business Source License, use of this software will be governed
// by the Apache License, Version 2.0, included in the file
// licenses/APL.txt.
// This code was derived from https://github.com/youtube/vitess.
package ast
// Delete represents a DELETE statement.
type Delete struct {
With *With
Table TableExpr
Where *Where
OrderBy OrderBy
Limit *Limit
Returning ReturningClause
}
// Format implements the NodeFormatter interface.
func (node *Delete) Format(ctx *FmtCtx) {
ctx.FormatNode(node.With)
ctx.WriteString("DELETE FROM ")
ctx.FormatNode(node.Table)
if node.Where != nil {
ctx.WriteByte(' ')
ctx.FormatNode(node.Where)
}
if len(node.OrderBy) > 0 {
ctx.WriteByte(' ')
ctx.FormatNode(&node.OrderBy)
}
if node.Limit != nil {
ctx.WriteByte(' ')
ctx.FormatNode(node.Limit)
}
if HasReturningClause(node.Returning) {
ctx.WriteByte(' ')
ctx.FormatNode(node.Returning)
}
}