Sql parse bug

[a448688423]

version: dev
SQL:SELECT * FROM ( select * from user where $datart_user_username$ ) AS DATART_VTABLE LIMIT 1000 OFFSET 0
DB: MYSQL
EXCEPTION:org.apache.calcite.sql.parser.SqlParseException: Encountered "user" at line 1, column 39.
Was expecting one of:
"LATERAL" ...
"TABLE" ...
"UNNEST" ...
...
<HYPHENATED_IDENTIFIER> ...
<QUOTED_IDENTIFIER> ...
<BACK_QUOTED_IDENTIFIER> ...
<BRACKET_QUOTED_IDENTIFIER> ...
<UNICODE_QUOTED_IDENTIFIER> ...
"(" ...