fix result

Author: TCeason

src/query/ast/src/ast/format/syntax/expr.rs

@@ -329,24 +329,31 @@ pub(crate) fn pretty_expr(expr: Expr) -> RcDoc<'static> {
                 res.clone()
                     .append(RcDoc::text(","))
                     .append(RcDoc::space())
-                    .append(RcDoc::text("ASC"));
+                    .append(RcDoc::text("'"))
+                    .append(RcDoc::text("ASC"))
+                    .append(RcDoc::text("'"));
             } else {
                 res.clone()
                     .append(RcDoc::text(","))
                     .append(RcDoc::space())
-                    .append(RcDoc::text("DESC"));
+                    .append(RcDoc::text("'"))
+                    .append(RcDoc::text("DESC"))
+                    .append(RcDoc::text("'"));
             }
             if null_first {
                 res.clone()
                     .append(RcDoc::text(","))
                     .append(RcDoc::space())
+                    .append(RcDoc::text("'"))
                     .append(RcDoc::text("NULL FIRST"))
-                    .append(RcDoc::space());
+                    .append(RcDoc::text("'"));
             } else {
                 res.clone()
                     .append(RcDoc::text(","))
                     .append(RcDoc::space())
-                    .append(RcDoc::text("NULL LAST"));
+                    .append(RcDoc::text("'"))
+                    .append(RcDoc::text("NULL LAST"))
+                    .append(RcDoc::text("'"));
             }
             res.clone().append(RcDoc::text(")"))
         }

tests/sqllogictests/suites/base/05_ddl/05_0026_ddl_unset_settings

@@ -3,8 +3,8 @@ query TTTT
 SELECT name, value, default, level from system.settings where name in ('sql_dialect', 'timezone', 'wait_for_async_insert_timeout')
 ----
 sql_dialect PostgreSQL PostgreSQL SESSION
-timezone                       UTC         UTC         SESSION
-wait_for_async_insert_timeout  100         100         SESSION
+timezone UTC UTC SESSION
+wait_for_async_insert_timeout 100 100 SESSION
 
 skipif clickhouse
 statement ok