diff --git a/pkg/parser/parser.go b/pkg/parser/parser.go
index 9287b5c9cf288..6ed212d72f60a 100644
--- a/pkg/parser/parser.go
+++ b/pkg/parser/parser.go
@@ -20095,7 +20095,7 @@ yynewstate:
 			case *ast.SelectStmt:
 				setOprList = []ast.Node{&ast.SetOprSelectList{Selects: []ast.Node{x}}}
 			case *ast.SetOprStmt:
-				setOprList = []ast.Node{&ast.SetOprSelectList{Selects: x.SelectList.Selects, With: x.With, Limit: x.Limit, OrderBy: x.OrderBy}}
+				setOprList = []ast.Node{&ast.SetOprSelectList{Selects: x.SelectList.Selects, With: x.With, Limit: x.Limit, OrderBy: x.OrderBy, IsInBraces: true}}
 			}
 			parser.yyVAL.item = setOprList
 		}
diff --git a/pkg/parser/parser.y b/pkg/parser/parser.y
index 15085c5bbf2f6..85f87c5ae79e6 100644
--- a/pkg/parser/parser.y
+++ b/pkg/parser/parser.y
@@ -10429,7 +10429,7 @@ SetOprClause:
 		case *ast.SelectStmt:
 			setOprList = []ast.Node{&ast.SetOprSelectList{Selects: []ast.Node{x}}}
 		case *ast.SetOprStmt:
-			setOprList = []ast.Node{&ast.SetOprSelectList{Selects: x.SelectList.Selects, With: x.With, Limit: x.Limit, OrderBy: x.OrderBy}}
+			setOprList = []ast.Node{&ast.SetOprSelectList{Selects: x.SelectList.Selects, With: x.With, Limit: x.Limit, OrderBy: x.OrderBy, IsInBraces: true}}
 		}
 		$$ = setOprList
 	}