michael-s-molina opened a new pull request, #31154:
URL: https://github.com/apache/superset/pull/31154
### SUMMARY
There was an unwanted commit on Trino's `handle_cursor` for updating the
`tracking_url`. That was causing the following error when running queries with
multiple statements:
```
Traceback (most recent call last):
File "/srv/superset-internal/apache-superset/superset/sql_lab.py", line
302, in execute_sql_statement
db_engine_spec.execute_with_cursor(cursor, sql, query)
File
"/srv/superset-internal/apache-superset/superset/db_engine_specs/trino.py",
line 269, in execute_with_cursor
cls.handle_cursor(cursor, query)
File
"/srv/superset-internal/apache-superset/superset/db_engine_specs/trino.py",
line 195, in handle_cursor
db.session.commit()
File "<string>", line 2, in commit
File "/usr/local/lib/python3.10/dist-packages/sqlalchemy/orm/session.py",
line 1454, in commit
self._transaction.commit(_to_root=self.future)
File "/usr/local/lib/python3.10/dist-packages/sqlalchemy/orm/session.py",
line 839, in commit
trans.commit()
File "/usr/local/lib/python3.10/dist-packages/sqlalchemy/engine/base.py",
line 2469, in commit
self._do_commit()
File "/usr/local/lib/python3.10/dist-packages/sqlalchemy/engine/base.py",
line 2659, in _do_commit
self._connection_commit_impl()
File "/usr/local/lib/python3.10/dist-packages/sqlalchemy/engine/base.py",
line 2630, in _connection_commit_impl
self.connection._commit_impl()
File "/usr/local/lib/python3.10/dist-packages/sqlalchemy/engine/base.py",
line 1096, in _commit_impl
self._handle_dbapi_exception(e, None, None, None, None)
File "/usr/local/lib/python3.10/dist-packages/sqlalchemy/engine/base.py",
line 2134, in _handle_dbapi_exception
util.raise_(
File "/usr/local/lib/python3.10/dist-packages/sqlalchemy/util/compat.py",
line 211, in raise_
raise exception
File "/usr/local/lib/python3.10/dist-packages/sqlalchemy/engine/base.py",
line 1094, in _commit_impl
self.engine.dialect.do_commit(self.connection)
File
"/usr/local/lib/python3.10/dist-packages/sqlalchemy/engine/default.py", line
686, in do_commit
dbapi_connection.commit()
sqlalchemy.exc.OperationalError: (MySQLdb.OperationalError) (2013, 'Lost
connection to MySQL server during query')
(Background on this error at: https://sqlalche.me/e/14/e3q8)
```
Query execution is wrapped by the `transaction` decorator which should be
responsible for calling `session.commit()`. This fix will provoke another less
severe problem where the `tracking_url` will not be fresh. We will open a
follow-up PR to fix this.
### TESTING INSTRUCTIONS
Using Trino, run a multi-statement SQL.
### ADDITIONAL INFORMATION
- [ ] Has associated issue:
- [ ] Required feature flags:
- [ ] Changes UI
- [ ] Includes DB Migration (follow approval process in
[SIP-59](https://github.com/apache/superset/issues/13351))
- [ ] Migration is atomic, supports rollback & is backwards-compatible
- [ ] Confirm DB migration upgrade and downgrade tested
- [ ] Runtime estimates and downtime expectations provided
- [ ] Introduces new feature or API
- [ ] Removes existing feature or API
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