def create_metadata(name,
                    ext_version=None,
                    schema=None,
                    user=None,
                    host=None,
                    port=None,
                    maintenance_db=None,
                    password=None,
                    runas=None):
    '''
    Get lifecycle information about an extension

    CLI Example:

    .. code-block:: bash

        salt '*' postgres.create_metadata adminpack

    '''
    installed_ext = get_installed_extension(
        name,
        user=user,
        host=host,
        port=port,
        maintenance_db=maintenance_db,
        password=password,
        runas=runas)
    ret = [_EXTENSION_NOT_INSTALLED]
    if installed_ext:
        ret = [_EXTENSION_INSTALLED]
        if (
            ext_version is not None
            and _pg_is_older_ext_ver(
                installed_ext.get('extversion', ext_version),
                ext_version
            )
        ):
            ret.append(_EXTENSION_TO_UPGRADE)
        if (
            schema is not None
            and installed_ext.get('extrelocatable', 'f') == 't'
            and installed_ext.get('schema_name', schema) != schema
        ):
            ret.append(_EXTENSION_TO_MOVE)
    return ret
Get lifecycle information about an extension

    CLI Example:

    .. code-block:: bash

        salt '*' postgres.create_metadata adminpack