### Body

The Common.sql package was created in order to provide a common interface for DBApiHooks to return the data that will be universally used in a number of cases:

* CommonSQL Operators and Sensors
* (future) lineage data where returned hook results can follow the returned data for column lineage information

This should be better documentedi in common.sql  that this is the goal that common.sql achieves



### Committer

- [X] I acknowledge that I am a maintainer/committer of the Apache Airflow project.
missing_init_dirs = []
    for path in provider_files:
        if path.endswith("/__pycache__"):
            continue
        if os.path.isdir(path) and not os.path.exists(os.path.join(path, "__init__.py")):
            missing_init_dirs.append(path)
    if missing_init_dirs:
        with open(os.path.join(ROOT_DIR, "scripts/ci/license-templates/LICENSE.txt")) as license:
            license_txt = license.readlines()
        prefixed_licensed_txt = [f"# {line}" if line != "\n" else "#\n" for line in license_txt]
        for missing_init_dir in missing_init_dirs:
            with open(os.path.join(missing_init_dir, "__init__.py"), "w") as init_file:
                init_file.write("".join(prefixed_licensed_txt))
        print("No __init__.py file was found in the following provider directories:")
        print("\n".join(missing_init_dirs))
        print("\nThe missing __init__.py files have been created. Please add these new files to a commit.")
        sys.exit(1)
if __name__ == "__main__":
    all_provider_subpackage_dirs = sorted(glob(f"{ROOT_DIR}/airflow/providers/**/*", recursive=True))
    check_dir_init_file(all_provider_subpackage_dirs)
    all_test_provider_subpackage_dirs = sorted(glob(f"{ROOT_DIR}/tests/providers/**/*", recursive=True))
    check_dir_init_file(all_test_provider_subpackage_dirs)