90 lines
2.4 KiB
Go
90 lines
2.4 KiB
Go
// Copyright 2025 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package stats
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import (
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"github.com/pingcap/failpoint"
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"github.com/pingcap/tidb/pkg/meta/model"
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"github.com/pingcap/tidb/pkg/planner/core/base"
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"github.com/pingcap/tidb/pkg/planner/util/debugtrace"
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"github.com/pingcap/tidb/pkg/statistics"
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)
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/*
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Below is debug trace for getStatsTable().
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Part of the logic for collecting information is in statistics/debug_trace.go.
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*/
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type getStatsTblInfo struct {
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TableName string
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TblInfoID int64
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InputPhysicalID int64
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HandleIsNil bool
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UsePartitionStats bool
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CountIsZero bool
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Uninitialized bool
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Outdated bool
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StatsTblInfo *statistics.StatsTblTraceInfo
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}
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func debugTraceGetStatsTbl(
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s base.PlanContext,
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tblInfo *model.TableInfo,
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pid int64,
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handleIsNil,
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usePartitionStats,
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countIsZero,
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uninitialized,
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outdated bool,
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statsTbl *statistics.Table,
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) {
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root := debugtrace.GetOrInitDebugTraceRoot(s)
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traceInfo := &getStatsTblInfo{
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TableName: tblInfo.Name.O,
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TblInfoID: tblInfo.ID,
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InputPhysicalID: pid,
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HandleIsNil: handleIsNil,
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UsePartitionStats: usePartitionStats,
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CountIsZero: countIsZero,
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Uninitialized: uninitialized,
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Outdated: outdated,
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StatsTblInfo: statistics.TraceStatsTbl(statsTbl),
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}
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failpoint.Inject("DebugTraceStableStatsTbl", func(val failpoint.Value) {
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if val.(bool) {
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stabilizeGetStatsTblInfo(traceInfo)
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}
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})
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root.AppendStepToCurrentContext(traceInfo)
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}
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// Only for test.
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func stabilizeGetStatsTblInfo(info *getStatsTblInfo) {
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info.TblInfoID = 100
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info.InputPhysicalID = 100
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tbl := info.StatsTblInfo
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if tbl == nil {
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return
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}
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tbl.PhysicalID = 100
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tbl.Version = 440930000000000000
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for _, col := range tbl.Columns {
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col.LastUpdateVersion = 440930000000000000
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}
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for _, idx := range tbl.Indexes {
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idx.LastUpdateVersion = 440930000000000000
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}
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}
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