execute_script() semicolon splitter (all drivers)
- Add BaseDriver._split_statements() that tracks single/double-quoted
strings and -- / /* */ comments so semicolons inside procedure bodies
are not treated as statement boundaries.
- Replace the naive sql.split(';') in all four drivers with this helper.
- MSSQL execute_script() also pre-splits on GO (case-insensitive, own
line) so scripts pasted from SSMS work correctly.
MSSQL EXPLAIN
- SET SHOWPLAN_TEXT ON/execute/SET SHOWPLAN_TEXT OFF must be separate
execute() calls; pyodbc rejects multiple statements in one call.
Hold self._lock for the entire sequence to keep session state atomic.
Keyring (connections.py)
- Log warnings (with traceback) on load/save failures instead of
silently returning "".
- save_password() now calls delete_password() when password is empty,
so clearing a saved password actually removes the old keyring entry
rather than leaving a stale one behind.
SQLite get_tables() O(N) lock acquisitions
- Run all COUNT(*) queries inside the same `with self._cur() as c:`
block, reducing N+1 lock acquisitions to 1.
Unused import: remove psycopg2.extras from postgres_driver.py.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
nngoandClaude Sonnet 4.6