update simplified_sql_grammar

Signed-off-by: reidliu41 <reid201711@gmail.com>

Author: reidliu41

examples/online_serving/openai_chat_completion_structured_outputs.py

@@ -79,17 +79,17 @@ def guided_json_completion(client: OpenAI, model: str):
 # Guided decoding by Grammar
 def guided_grammar_completion(client: OpenAI, model: str):
     simplified_sql_grammar = """
-        ?start: select_statement
+        root ::= select_statement
 
-        ?select_statement: "SELECT " column_list " FROM " table_name
+        select_statement ::= "SELECT " column " from " table " where " condition
 
-        ?column_list: column_name ("," column_name)*
+        column ::= "col_1 " | "col_2 "
 
-        ?table_name: identifier
+        table ::= "table_1 " | "table_2 "
 
-        ?column_name: identifier
+        condition ::= column "= " number
 
-        ?identifier: /[a-zA-Z_][a-zA-Z0-9_]*/
+        number ::= "1 " | "2 "
     """
 
     prompt = ("Generate an SQL query to show the 'username' and 'email'"

examples/online_serving/openai_chat_completion_structured_outputs_with_reasoning.py

@@ -102,17 +102,17 @@ def guided_car_json_completion(client: OpenAI, model: str):
 # Guided decoding by Grammar
 def guided_grammar_completion(client: OpenAI, model: str):
     simplified_sql_grammar = """
-        ?start: select_statement
+        root ::= select_statement
 
-        ?select_statement: "SELECT " column_list " FROM " table_name
+        select_statement ::= "SELECT " column " from " table " where " condition
 
-        ?column_list: column_name ("," column_name)*
+        column ::= "col_1 " | "col_2 "
 
-        ?table_name: identifier
+        table ::= "table_1 " | "table_2 "
 
-        ?column_name: identifier
+        condition ::= column "= " number
 
-        ?identifier: /[a-zA-Z_][a-zA-Z0-9_]*/
+        number ::= "1 " | "2 "
     """
 
     # This may be very slow https://github.com/vllm-project/vllm/issues/12122