cherry pick pingcap#19616 to release-4.0

Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
ti-srebot · Sep 14, 2020 · c1acfd9 · c1acfd9
1 parent 51d365f
commit c1acfd9
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/expression/expression.go b/expression/expression.go
@@ -1174,6 +1174,14 @@ func scalarExprSupportedByFlash(function *ScalarFunction) bool {
 		default:
 			return false
 		}
+	case ast.Round:
+		switch function.Function.PbCode() {
+		case tipb.ScalarFuncSig_RoundInt, tipb.ScalarFuncSig_RoundReal,
+			tipb.ScalarFuncSig_RoundDec:
+			return true
+		default:
+			return false
+		}
 	default:
 		return false
 	}