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prepare.go
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prepare.go
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// Copyright 2016 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.
package parser
import "bytes"
// Prepare represents a PREPARE statement.
type Prepare struct {
Name Name
Types []ColumnType
Statement Statement
}
// Format implements the NodeFormatter interface.
func (node *Prepare) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("PREPARE ")
FormatNode(buf, f, node.Name)
if len(node.Types) > 0 {
buf.WriteString(" (")
for i, t := range node.Types {
if i > 0 {
buf.WriteString(", ")
}
FormatNode(buf, f, t)
}
buf.WriteRune(')')
}
buf.WriteString(" AS ")
FormatNode(buf, f, node.Statement)
}
// Execute represents an EXECUTE statement.
type Execute struct {
Name Name
Params Exprs
}
// Format implements the NodeFormatter interface.
func (node *Execute) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("EXECUTE ")
FormatNode(buf, f, node.Name)
if len(node.Params) > 0 {
buf.WriteString(" (")
FormatNode(buf, f, node.Params)
buf.WriteByte(')')
}
}
// Deallocate represents a DEALLOCATE statement.
type Deallocate struct {
Name Name // empty for ALL
}
// Format implements the NodeFormatter interface.
func (node *Deallocate) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("DEALLOCATE ")
if node.Name == "" {
buf.WriteString("ALL")
} else {
FormatNode(buf, f, node.Name)
}
}