executor: check schema when build table reader executor (#50425) (#50562

) ref #50358
pingcap · Apr 16, 2024 · 3c1af38 · 3c1af38
1 parent 5bf91c6
commit 3c1af38
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/executor/builder.go b/executor/builder.go
@@ -3571,6 +3571,10 @@ func (b *executorBuilder) buildTableReader(v *plannercore.PhysicalTableReader) E
 		}
 	})
 	if useMPPExecution(b.ctx, v) {
+		// https://github.com/pingcap/tidb/issues/50358
+		if len(v.Schema().Columns) == 0 && len(v.GetTablePlan().Schema().Columns) > 0 {
+			v.SetSchema(v.GetTablePlan().Schema())
+		}
 		return b.buildMPPGather(v)
 	}
 	ts, err := v.GetTableScan()