chore(migration): Migrate code from googleapis/python-bigquery-sqlalchemy into packages/sqlalchemy-bigquery#16046

chalmerlowe merged 573 commits into

maingoogleapis/google-cloud-python:mainfrom

migration.python-bigquery-sqlalchemy.migration.2026-03-06_19-24-38.migrategoogleapis/google-cloud-python:migration.python-bigquery-sqlalchemy.migration.2026-03-06_19-24-38.migrateCopy head branch name to clipboard