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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)
package parser
import "bytes"
// Explain represents an EXPLAIN statement.
type Explain struct {
Options []string
Statement Statement
}
// Format implements the NodeFormatter interface.
func (node *Explain) Format(buf *bytes.Buffer, f FmtFlags) {
buf.WriteString("EXPLAIN ")
if len(node.Options) > 0 {
buf.WriteByte('(')
for i, opt := range node.Options {
if i > 0 {
buf.WriteString(", ")
}
buf.WriteString(opt)
}
buf.WriteString(") ")
}
FormatNode(buf, f, node.Statement)
}
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