update

Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com>
pingcap · Aug 17, 2023 · aa3e0f2 · aa3e0f2
1 parent 657c8d9
commit aa3e0f2
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/executor/union_scan.go b/executor/union_scan.go
@@ -209,7 +209,8 @@ func (us *UnionScanExec) getOneRow(ctx context.Context) ([]types.Datum, error) {
 	} else if snapshotRow == nil {
 		row = addedRow
 	} else {
-		isSnapshotRow, err = us.compare(us.Ctx().GetSessionVars().StmtCtx, snapshotRow, addedRow)
+		isSnapshotRowInt, err := us.compare(us.Ctx().GetSessionVars().StmtCtx, snapshotRow, addedRow)
+		isSnapshotRow = isSnapshotRowInt > 0
 		if err != nil {
 			return nil, err
 		}