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// Copyright 2015 The Cockroach 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.
//
// Author: Peter Mattis (peter@cockroachlabs.com)
// This code was derived from https://github.com/youtube/vitess.
//
// Copyright 2012, Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file
package parser
import "bytes"
// Show represents a SHOW statement.
type Show struct {
Name string
}
// Format implements the NodeFormatter interface.
func (node *Show) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("SHOW ")
buf.WriteString(node.Name)
}
// ShowColumns represents a SHOW COLUMNS statement.
type ShowColumns struct {
Table *QualifiedName
}
// Format implements the NodeFormatter interface.
func (node *ShowColumns) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("SHOW COLUMNS FROM ")
FormatNode(buf, f, node.Table)
}
// ShowDatabases represents a SHOW DATABASES statement.
type ShowDatabases struct {
}
// Format implements the NodeFormatter interface.
func (node *ShowDatabases) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("SHOW DATABASES")
}
// ShowIndex represents a SHOW INDEX statement.
type ShowIndex struct {
Table *QualifiedName
}
// Format implements the NodeFormatter interface.
func (node *ShowIndex) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("SHOW INDEXES FROM ")
FormatNode(buf, f, node.Table)
}
// ShowTables represents a SHOW TABLES statement.
type ShowTables struct {
Name *QualifiedName
}
// ShowConstraints represents a SHOW CONSTRAINTS statement.
type ShowConstraints struct {
Table *QualifiedName
}
// Format implements the NodeFormatter interface.
func (node *ShowConstraints) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("SHOW CONSTRAINTS")
if node.Table != nil {
buf.WriteString(" FROM ")
FormatNode(buf, f, node.Table)
}
}
// Format implements the NodeFormatter interface.
func (node *ShowTables) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("SHOW TABLES")
if node.Name != nil {
buf.WriteString(" FROM ")
FormatNode(buf, f, node.Name)
}
}
// ShowGrants represents a SHOW GRANTS statement.
// TargetList is defined in grant.go.
type ShowGrants struct {
Targets *TargetList
Grantees NameList
}
// Format implements the NodeFormatter interface.
func (node *ShowGrants) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("SHOW GRANTS")
if node.Targets != nil {
buf.WriteString(" ON ")
FormatNode(buf, f, node.Targets)
}
if node.Grantees != nil {
buf.WriteString(" FOR ")
FormatNode(buf, f, node.Grantees)
}
}
// ShowCreateTable represents a SHOW CREATE TABLE statement.
type ShowCreateTable struct {
Table *QualifiedName
}
// Format implements the NodeFormatter interface.
func (node *ShowCreateTable) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("SHOW CREATE TABLE ")
FormatNode(buf, f, node.Table)
}
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