ddl: remove mock.Context usage in addIndexIngestWorker (#53479)

close #53388

Author: lcwangchao

pkg/ddl/BUILD.bazel

@@ -280,6 +280,7 @@ go_test(
         "//pkg/disttask/framework/storage",
         "//pkg/domain",
         "//pkg/domain/infosync",
+        "//pkg/errctx",
         "//pkg/errno",
         "//pkg/executor",
         "//pkg/infoschema",
@@ -300,7 +301,6 @@ go_test(
         "//pkg/session",
         "//pkg/session/types",
         "//pkg/sessionctx",
-        "//pkg/sessionctx/stmtctx",
         "//pkg/sessionctx/variable",
         "//pkg/sessiontxn",
         "//pkg/store/gcworker",

pkg/ddl/backfilling.go

@@ -42,7 +42,6 @@ import (
 	"github.com/pingcap/tidb/pkg/util"
 	"github.com/pingcap/tidb/pkg/util/dbterror"
 	decoder "github.com/pingcap/tidb/pkg/util/rowDecoder"
-	"github.com/pingcap/tidb/pkg/util/timeutil"
 	"github.com/pingcap/tidb/pkg/util/topsql"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/tikv/client-go/v2/tikv"
@@ -543,24 +542,6 @@ func makeupDecodeColMap(dbName model.CIStr, t table.Table) (map[int64]decoder.Co
 	return decodeColMap, nil
 }
 
-func setSessCtxLocation(sctx sessionctx.Context, tzLocation *model.TimeZoneLocation) error {
-	// It is set to SystemLocation to be compatible with nil LocationInfo.
-	tz := *timeutil.SystemLocation()
-	if sctx.GetSessionVars().TimeZone == nil {
-		sctx.GetSessionVars().TimeZone = &tz
-	} else {
-		*sctx.GetSessionVars().TimeZone = tz
-	}
-	if tzLocation != nil {
-		loc, err := tzLocation.GetLocation()
-		if err != nil {
-			return errors.Trace(err)
-		}
-		*sctx.GetSessionVars().TimeZone = *loc
-	}
-	return nil
-}
-
 var backfillTaskChanSize = 128
 
 // SetBackfillTaskChanSizeForTest is only used for test.

pkg/ddl/backfilling_operators.go

@@ -709,10 +709,7 @@ func (w *indexIngestBaseWorker) initSessCtx() {
 			return
 		}
 		w.restore = restoreSessCtx(sessCtx)
-		if err := initSessCtx(sessCtx,
-			w.reorgMeta.SQLMode,
-			w.reorgMeta.Location,
-			w.reorgMeta.ResourceGroupName); err != nil {
+		if err := initSessCtx(sessCtx, w.reorgMeta); err != nil {
 			w.ctx.onError(err)
 			return
 		}
@@ -748,7 +745,8 @@ func (w *indexIngestBaseWorker) WriteChunk(rs *IndexRecordChunk) (count int, nex
 
 	oprStartTime := time.Now()
 	vars := w.se.GetSessionVars()
-	cnt, lastHandle, err := writeChunkToLocal(w.ctx, w.writers, w.indexes, w.copCtx, vars, rs.Chunk)
+	sc := vars.StmtCtx
+	cnt, lastHandle, err := writeChunkToLocal(w.ctx, w.writers, w.indexes, w.copCtx, sc.TimeZone(), sc.ErrCtx(), vars.GetWriteStmtBufs(), rs.Chunk)
 	if err != nil || cnt == 0 {
 		return 0, nil, err
 	}

pkg/ddl/backfilling_read_index.go

@@ -105,8 +105,7 @@ func (r *readIndexExecutor) RunSubtask(ctx context.Context, subtask *proto.Subta
 		return err
 	}
 
-	sessCtx, err := newSessCtx(
-		r.d.store, r.job.ReorgMeta.SQLMode, r.job.ReorgMeta.Location, r.job.ReorgMeta.ResourceGroupName)
+	sessCtx, err := newSessCtx(r.d.store, r.job.ReorgMeta)
 	if err != nil {
 		return err
 	}

pkg/ddl/backfilling_scheduler.go

@@ -31,14 +31,12 @@ import (
 	"github.com/pingcap/tidb/pkg/kv"
 	"github.com/pingcap/tidb/pkg/metrics"
 	"github.com/pingcap/tidb/pkg/parser/model"
-	"github.com/pingcap/tidb/pkg/parser/mysql"
 	"github.com/pingcap/tidb/pkg/resourcemanager/pool/workerpool"
 	poolutil "github.com/pingcap/tidb/pkg/resourcemanager/util"
 	"github.com/pingcap/tidb/pkg/sessionctx"
 	"github.com/pingcap/tidb/pkg/sessionctx/stmtctx"
 	"github.com/pingcap/tidb/pkg/sessionctx/variable"
 	"github.com/pingcap/tidb/pkg/table"
-	"github.com/pingcap/tidb/pkg/types"
 	"github.com/pingcap/tidb/pkg/util"
 	contextutil "github.com/pingcap/tidb/pkg/util/context"
 	"github.com/pingcap/tidb/pkg/util/dbterror"
@@ -143,14 +141,9 @@ func (b *txnBackfillScheduler) resultChan() <-chan *backfillResult {
 	return b.resultCh
 }
 
-func newSessCtx(
-	store kv.Storage,
-	sqlMode mysql.SQLMode,
-	tzLocation *model.TimeZoneLocation,
-	resourceGroupName string,
-) (sessionctx.Context, error) {
+func newSessCtx(store kv.Storage, reorgMeta *model.DDLReorgMeta) (sessionctx.Context, error) {
 	sessCtx := newReorgSessCtx(store)
-	if err := initSessCtx(sessCtx, sqlMode, tzLocation, resourceGroupName); err != nil {
+	if err := initSessCtx(sessCtx, reorgMeta); err != nil {
 		return nil, errors.Trace(err)
 	}
 	return sessCtx, nil
@@ -182,12 +175,7 @@ func newDefaultReorgDistSQLCtx(kvClient kv.Client) *distsqlctx.DistSQLContext {
 }
 
 // initSessCtx initializes the session context. Be careful to the timezone.
-func initSessCtx(
-	sessCtx sessionctx.Context,
-	sqlMode mysql.SQLMode,
-	tzLocation *model.TimeZoneLocation,
-	resGroupName string,
-) error {
+func initSessCtx(sessCtx sessionctx.Context, reorgMeta *model.DDLReorgMeta) error {
 	// Correct the initial timezone.
 	tz := *time.UTC
 	sessCtx.GetSessionVars().TimeZone = &tz
@@ -197,25 +185,21 @@ func initSessCtx(
 	rowFormat := variable.GetDDLReorgRowFormat()
 	sessCtx.GetSessionVars().RowEncoder.Enable = rowFormat != variable.DefTiDBRowFormatV1
 	// Simulate the sql mode environment in the worker sessionCtx.
+	sqlMode := reorgMeta.SQLMode
 	sessCtx.GetSessionVars().SQLMode = sqlMode
-	if err := setSessCtxLocation(sessCtx, tzLocation); err != nil {
+	loc, err := reorgTimeZoneWithTzLoc(reorgMeta.Location)
+	if err != nil {
 		return errors.Trace(err)
 	}
-	sessCtx.GetSessionVars().StmtCtx.SetTimeZone(sessCtx.GetSessionVars().Location())
+	sessCtx.GetSessionVars().TimeZone = loc
+	sessCtx.GetSessionVars().StmtCtx.SetTimeZone(loc)
 
-	errLevels := sessCtx.GetSessionVars().StmtCtx.ErrLevels()
-	errLevels[errctx.ErrGroupBadNull] = errctx.ResolveErrLevel(false, !sqlMode.HasStrictMode())
-	errLevels[errctx.ErrGroupDividedByZero] =
-		errctx.ResolveErrLevel(!sqlMode.HasErrorForDivisionByZeroMode(), !sqlMode.HasStrictMode())
+	errLevels := reorgErrLevelsWithSQLMode(sqlMode)
 	sessCtx.GetSessionVars().StmtCtx.SetErrLevels(errLevels)
 
-	typeFlags := types.StrictFlags.
-		WithTruncateAsWarning(!sqlMode.HasStrictMode()).
-		WithIgnoreInvalidDateErr(sqlMode.HasAllowInvalidDatesMode()).
-		WithIgnoreZeroInDate(!sqlMode.HasStrictMode() || sqlMode.HasAllowInvalidDatesMode()).
-		WithCastTimeToYearThroughConcat(true)
+	typeFlags := reorgTypeFlagsWithSQLMode(sqlMode)
 	sessCtx.GetSessionVars().StmtCtx.SetTypeFlags(typeFlags)
-	sessCtx.GetSessionVars().StmtCtx.ResourceGroupName = resGroupName
+	sessCtx.GetSessionVars().StmtCtx.ResourceGroupName = reorgMeta.ResourceGroupName
 
 	// Prevent initializing the mock context in the workers concurrently.
 	// For details, see https://github.com/pingcap/tidb/issues/40879.
@@ -268,7 +252,7 @@ func (b *txnBackfillScheduler) adjustWorkerSize() error {
 	workerCnt := b.expectedWorkerSize()
 	// Increase the worker.
 	for i := len(b.workers); i < workerCnt; i++ {
-		sessCtx, err := newSessCtx(reorgInfo.d.store, reorgInfo.ReorgMeta.SQLMode, reorgInfo.ReorgMeta.Location, reorgInfo.ReorgMeta.ResourceGroupName)
+		sessCtx, err := newSessCtx(reorgInfo.d.store, reorgInfo.ReorgMeta)
 		if err != nil {
 			return err
 		}
@@ -505,16 +489,10 @@ func (b *ingestBackfillScheduler) createWorker(
 ) workerpool.Worker[IndexRecordChunk, workerpool.None] {
 	reorgInfo := b.reorgInfo
 	job := reorgInfo.Job
-	sessCtx, err := newSessCtx(reorgInfo.d.store, reorgInfo.ReorgMeta.SQLMode, reorgInfo.ReorgMeta.Location, reorgInfo.ReorgMeta.ResourceGroupName)
-	if err != nil {
-		b.sendResult(&backfillResult{err: err})
-		return nil
-	}
-
 	worker, err := newAddIndexIngestWorker(
-		b.ctx, b.tbl, reorgInfo.d, engines, b.resultCh, job.ID,
-		reorgInfo.SchemaName, indexIDs, b.writerMaxID,
-		b.copReqSenderPool, sessCtx, b.checkpointMgr)
+		b.ctx, b.tbl, reorgInfo, engines, b.resultCh, job.ID,
+		indexIDs, b.writerMaxID,
+		b.copReqSenderPool, b.checkpointMgr)
 	if err != nil {
 		// Return an error only if it is the first worker.
 		if b.writerMaxID == 0 {
@@ -541,7 +519,7 @@ func (b *ingestBackfillScheduler) createCopReqSenderPool() (*copReqSenderPool, e
 		}
 		allIndexInfos = append(allIndexInfos, indexInfo)
 	}
-	sessCtx, err := newSessCtx(ri.d.store, ri.ReorgMeta.SQLMode, ri.ReorgMeta.Location, ri.ReorgMeta.ResourceGroupName)
+	sessCtx, err := newSessCtx(ri.d.store, ri.ReorgMeta)
 	if err != nil {
 		logutil.Logger(b.ctx).Warn("cannot init cop request sender", zap.Error(err))
 		return nil, err

pkg/ddl/export_test.go

@@ -21,8 +21,8 @@ import (
 	"github.com/ngaut/pools"
 	"github.com/pingcap/tidb/pkg/ddl/copr"
 	"github.com/pingcap/tidb/pkg/ddl/internal/session"
+	"github.com/pingcap/tidb/pkg/errctx"
 	"github.com/pingcap/tidb/pkg/kv"
-	"github.com/pingcap/tidb/pkg/sessionctx/stmtctx"
 	"github.com/pingcap/tidb/pkg/sessionctx/variable"
 	"github.com/pingcap/tidb/pkg/table"
 	"github.com/pingcap/tidb/pkg/types"
@@ -72,7 +72,7 @@ func ConvertRowToHandleAndIndexDatum(
 	c := copCtx.GetBase()
 	idxData := extractDatumByOffsets(row, copCtx.IndexColumnOutputOffsets(idxID), c.ExprColumnInfos, idxDataBuf)
 	handleData := extractDatumByOffsets(row, c.HandleOutputOffsets, c.ExprColumnInfos, handleDataBuf)
-	handle, err := buildHandle(handleData, c.TableInfo, c.PrimaryKeyInfo, stmtctx.NewStmtCtxWithTimeZone(time.Local))
+	handle, err := buildHandle(handleData, c.TableInfo, c.PrimaryKeyInfo, time.Local, errctx.StrictNoWarningContext)
 	return handle, idxData, err
 }
 

pkg/ddl/index.go

@@ -39,6 +39,7 @@ import (
 	"github.com/pingcap/tidb/pkg/disttask/framework/proto"
 	"github.com/pingcap/tidb/pkg/disttask/framework/scheduler"
 	"github.com/pingcap/tidb/pkg/disttask/framework/storage"
+	"github.com/pingcap/tidb/pkg/errctx"
 	"github.com/pingcap/tidb/pkg/infoschema"
 	"github.com/pingcap/tidb/pkg/kv"
 	"github.com/pingcap/tidb/pkg/lightning/common"
@@ -50,7 +51,6 @@ import (
 	"github.com/pingcap/tidb/pkg/parser/mysql"
 	"github.com/pingcap/tidb/pkg/parser/terror"
 	"github.com/pingcap/tidb/pkg/sessionctx"
-	"github.com/pingcap/tidb/pkg/sessionctx/stmtctx"
 	"github.com/pingcap/tidb/pkg/sessionctx/variable"
 	"github.com/pingcap/tidb/pkg/store/helper"
 	"github.com/pingcap/tidb/pkg/table"
@@ -61,6 +61,7 @@ import (
 	"github.com/pingcap/tidb/pkg/util/backoff"
 	"github.com/pingcap/tidb/pkg/util/chunk"
 	"github.com/pingcap/tidb/pkg/util/codec"
+	contextutil "github.com/pingcap/tidb/pkg/util/context"
 	"github.com/pingcap/tidb/pkg/util/dbterror"
 	tidblogutil "github.com/pingcap/tidb/pkg/util/logutil"
 	decoder "github.com/pingcap/tidb/pkg/util/rowDecoder"
@@ -1651,7 +1652,9 @@ type addIndexIngestWorker struct {
 	ctx           context.Context
 	d             *ddlCtx
 	metricCounter prometheus.Counter
-	sessCtx       sessionctx.Context
+	writeLoc      *time.Location
+	writeErrCtx   errctx.Context
+	writeStmtBufs variable.WriteStmtBufs
 
 	tbl              table.PhysicalTable
 	indexes          []table.Index
@@ -1666,17 +1669,20 @@ type addIndexIngestWorker struct {
 func newAddIndexIngestWorker(
 	ctx context.Context,
 	t table.PhysicalTable,
-	d *ddlCtx,
+	info *reorgInfo,
 	engines []ingest.Engine,
 	resultCh chan *backfillResult,
 	jobID int64,
-	schemaName string,
 	indexIDs []int64,
 	writerID int,
 	copReqSenderPool *copReqSenderPool,
-	sessCtx sessionctx.Context,
 	checkpointMgr *ingest.CheckpointManager,
 ) (*addIndexIngestWorker, error) {
+	writeLoc, err := reorgTimeZoneWithTzLoc(info.ReorgMeta.Location)
+	if err != nil {
+		return nil, err
+	}
+
 	indexes := make([]table.Index, 0, len(indexIDs))
 	writers := make([]ingest.Writer, 0, len(indexIDs))
 	for i, indexID := range indexIDs {
@@ -1690,12 +1696,18 @@ func newAddIndexIngestWorker(
 		writers = append(writers, lw)
 	}
 
+	writeErrCtx := errctx.NewContextWithLevels(
+		reorgErrLevelsWithSQLMode(info.ReorgMeta.SQLMode),
+		contextutil.IgnoreWarn,
+	)
+
 	return &addIndexIngestWorker{
-		ctx:     ctx,
-		d:       d,
-		sessCtx: sessCtx,
+		ctx:         ctx,
+		d:           info.d,
+		writeLoc:    writeLoc,
+		writeErrCtx: writeErrCtx,
 		metricCounter: metrics.BackfillTotalCounter.WithLabelValues(
-			metrics.GenerateReorgLabel("add_idx_rate", schemaName, t.Meta().Name.O)),
+			metrics.GenerateReorgLabel("add_idx_rate", info.SchemaName, t.Meta().Name.O)),
 		tbl:              t,
 		indexes:          indexes,
 		writers:          writers,
@@ -1710,9 +1722,8 @@ func newAddIndexIngestWorker(
 func (w *addIndexIngestWorker) WriteLocal(rs *IndexRecordChunk) (count int, nextKey kv.Key, err error) {
 	oprStartTime := time.Now()
 	copCtx := w.copReqSenderPool.copCtx
-	vars := w.sessCtx.GetSessionVars()
 	cnt, lastHandle, err := writeChunkToLocal(
-		w.ctx, w.writers, w.indexes, copCtx, vars, rs.Chunk)
+		w.ctx, w.writers, w.indexes, copCtx, w.writeLoc, w.writeErrCtx, &w.writeStmtBufs, rs.Chunk)
 	if err != nil || cnt == 0 {
 		return 0, nil, err
 	}
@@ -1727,10 +1738,11 @@ func writeChunkToLocal(
 	writers []ingest.Writer,
 	indexes []table.Index,
 	copCtx copr.CopContext,
-	vars *variable.SessionVars,
+	loc *time.Location,
+	errCtx errctx.Context,
+	writeStmtBufs *variable.WriteStmtBufs,
 	copChunk *chunk.Chunk,
 ) (int, kv.Handle, error) {
-	sCtx, writeBufs := vars.StmtCtx, vars.GetWriteStmtBufs()
 	iter := chunk.NewIterator4Chunk(copChunk)
 	c := copCtx.GetBase()
 
@@ -1772,7 +1784,7 @@ func writeChunkToLocal(
 				restoreDataBuf[i] = *datum.Clone()
 			}
 		}
-		h, err := buildHandle(handleDataBuf, c.TableInfo, c.PrimaryKeyInfo, sCtx)
+		h, err := buildHandle(handleDataBuf, c.TableInfo, c.PrimaryKeyInfo, loc, errCtx)
 		if err != nil {
 			return 0, nil, errors.Trace(err)
 		}
@@ -1785,7 +1797,7 @@ func writeChunkToLocal(
 			if needRestoreForIndexes[i] {
 				rsData = getRestoreData(c.TableInfo, copCtx.IndexInfo(idxID), c.PrimaryKeyInfo, restoreDataBuf)
 			}
-			err = writeOneKVToLocal(ctx, writers[i], index, sCtx, writeBufs, idxData, rsData, h)
+			err = writeOneKVToLocal(ctx, writers[i], index, loc, errCtx, writeStmtBufs, idxData, rsData, h)
 			if err != nil {
 				return 0, nil, errors.Trace(err)
 			}
@@ -1811,12 +1823,13 @@ func writeOneKVToLocal(
 	ctx context.Context,
 	writer ingest.Writer,
 	index table.Index,
-	sCtx *stmtctx.StatementContext,
+	loc *time.Location,
+	errCtx errctx.Context,
 	writeBufs *variable.WriteStmtBufs,
 	idxDt, rsData []types.Datum,
 	handle kv.Handle,
 ) error {
-	iter := index.GenIndexKVIter(sCtx.ErrCtx(), sCtx.TimeZone(), idxDt, handle, rsData)
+	iter := index.GenIndexKVIter(errCtx, loc, idxDt, handle, rsData)
 	for iter.Valid() {
 		key, idxVal, _, err := iter.Next(writeBufs.IndexKeyBuf, writeBufs.RowValBuf)
 		if err != nil {

pkg/ddl/index_cop.go

@@ -26,13 +26,13 @@ import (
 	"github.com/pingcap/tidb/pkg/ddl/ingest"
 	sess "github.com/pingcap/tidb/pkg/ddl/internal/session"
 	"github.com/pingcap/tidb/pkg/distsql"
+	"github.com/pingcap/tidb/pkg/errctx"
 	"github.com/pingcap/tidb/pkg/expression"
 	"github.com/pingcap/tidb/pkg/kv"
 	"github.com/pingcap/tidb/pkg/metrics"
 	"github.com/pingcap/tidb/pkg/parser/model"
 	"github.com/pingcap/tidb/pkg/parser/terror"
 	"github.com/pingcap/tidb/pkg/sessionctx"
-	"github.com/pingcap/tidb/pkg/sessionctx/stmtctx"
 	"github.com/pingcap/tidb/pkg/sessionctx/variable"
 	"github.com/pingcap/tidb/pkg/table"
 	"github.com/pingcap/tidb/pkg/table/tables"
@@ -379,11 +379,11 @@ func extractDatumByOffsets(row chunk.Row, offsets []int, expCols []*expression.C
 }
 
 func buildHandle(pkDts []types.Datum, tblInfo *model.TableInfo,
-	pkInfo *model.IndexInfo, stmtCtx *stmtctx.StatementContext) (kv.Handle, error) {
+	pkInfo *model.IndexInfo, loc *time.Location, errCtx errctx.Context) (kv.Handle, error) {
 	if tblInfo.IsCommonHandle {
 		tablecodec.TruncateIndexValues(tblInfo, pkInfo, pkDts)
-		handleBytes, err := codec.EncodeKey(stmtCtx.TimeZone(), nil, pkDts...)
-		err = stmtCtx.HandleError(err)
+		handleBytes, err := codec.EncodeKey(loc, nil, pkDts...)
+		err = errCtx.HandleError(err)
 		if err != nil {
 			return nil, err
 		}