some fixes in tests

Author: KSDaemon

packages/cubejs-schema-compiler/test/integration/postgres/yaml-compiler.test.ts

@@ -672,7 +672,7 @@ views:
   - name: simple_orders_sql_ext
 
     sql: >
-      SELECT * FROM ({simple_orders.sql()}) as parent
+      SELECT * FROM {simple_orders.sql()} as parent
       WHERE status = 'new'
 
     measures:

packages/cubejs-schema-compiler/test/unit/yaml-schema.test.ts

@@ -497,7 +497,7 @@ describe('Yaml Schema Testing', () => {
   - name: simple_orders_sql_ext
 
     sql: >
-      SELECT * FROM {simple_orders.sql()}
+      SELECT * FROM {simple_orders.sql()} as q
       WHERE status = 'processed'
 
     measures: