tidb trace 源码
tidb trace 代码
文件路径：/planner/core/trace.go
// Copyright 2018 PingCAP, 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 core
import (
"github.com/pingcap/tidb/parser/ast"
)
// Trace represents a trace plan.
type Trace struct {
baseSchemaProducer
StmtNode ast.StmtNode
Format string
// OptimizerTrace indicates `trace plan target = 'xxx' <statement>` case
OptimizerTrace bool
OptimizerTraceTarget string
}
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