(GjnPdZddlmZddlZddlZdd Zejdd ZdS)uShared SQLite primitives for the small per-profile / board stores. The projects and kanban stores open WAL SQLite files with the same two primitives — an idempotent column-add migration and an IMMEDIATE write transaction. One definition here keeps the two stores from drifting. ) annotationsNconnsqlite3.Connectiontablestrcolumnddlreturnboolc |d|d|dS#tj$r/}dt|vrYd}~dSd}~wwxYw)aP``ALTER TABLE ADD COLUMN ``, idempotent across races. Returns ``True`` when this call added the column. Swallows the ``duplicate column name`` error a concurrent migrator may have run first (issue #21708). ``column`` is the human-readable name for the call site; ``ddl`` carries the actual definition. z ALTER TABLE z ADD COLUMN Tzduplicate column nameNF)executesqlite3OperationalErrorrlower)rrrr excs rsz#"""""" r