make dialect better

Author: benfdking

examples/sushi/models/latest_order.sql

@@ -10,6 +10,5 @@ MODEL (
 );
 
 SELECT id, customer_id, start_ts, end_ts, event_date
-FROM sushi.orders
+FROM sushi.active_customers
 ORDER BY event_date DESC LIMIT 1
-

sqlmesh/lsp/completions.py

@@ -48,7 +48,8 @@ def get_keywords(context: t.Optional[LSPContext], file_uri: t.Optional[str]) ->
         if models:
             model = models[0]
             if context.context.get_model(model) is not None:
-                return get_keywords_from_tokenizer(context.context.get_model(model).dialect)
+                if context.context.get_model(model).dialect:
+                    return get_keywords_from_tokenizer(context.context.get_model(model).dialect)
     if context is not None:
         return get_keywords_from_tokenizer(context.context.default_dialect)
     return get_keywords_from_tokenizer(None)