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executor: Fix compact for VARCHAR PK (#51812) #51819

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3 changes: 1 addition & 2 deletions pkg/executor/compact_table.go
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,6 @@
package executor

import (
"bytes"
"context"
"encoding/hex"
"time"
Expand Down Expand Up @@ -311,7 +310,7 @@ func (task *storeCompactTask) compactOnePhysicalTable(physicalTableID int64) (bo

// Let's send more compact requests, as there are remaining data to compact.
lastEndKey := resp.GetCompactedEndKey()
if len(lastEndKey) == 0 || bytes.Compare(lastEndKey, startKey) <= 0 {
if len(lastEndKey) == 0 {
// The TiFlash server returned an invalid compacted end key.
// This is unexpected...
warn := errors.Errorf("compact on store %s failed: internal error (check logs for details)", task.targetStore.Address)
Expand Down