spanner/src/admin/archived/drop_sequence.php [39:60]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
function drop_sequence(
    string $instanceId,
    string $databaseId
): void {
    $spanner = new SpannerClient();
    $instance = $spanner->instance($instanceId);
    $database = $instance->database($databaseId);

    $operation = $database->updateDdlBatch([
        'ALTER TABLE Customers ALTER COLUMN CustomerId DROP DEFAULT',
        'DROP SEQUENCE Seq'
    ]);

    print('Waiting for operation to complete...' . PHP_EOL);
    $operation->pollUntilComplete();

    printf(
        'Altered Customers table to drop DEFAULT from CustomerId ' .
        'column and dropped the Seq sequence' .
        PHP_EOL
    );
}
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



spanner/src/admin/archived/pg_drop_sequence.php [39:60]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
function pg_drop_sequence(
    string $instanceId,
    string $databaseId
): void {
    $spanner = new SpannerClient();
    $instance = $spanner->instance($instanceId);
    $database = $instance->database($databaseId);

    $operation = $database->updateDdlBatch([
        'ALTER TABLE Customers ALTER COLUMN CustomerId DROP DEFAULT',
        'DROP SEQUENCE Seq'
    ]);

    print('Waiting for operation to complete...' . PHP_EOL);
    $operation->pollUntilComplete();

    printf(
        'Altered Customers table to drop DEFAULT from CustomerId ' .
        'column and dropped the Seq sequence' .
        PHP_EOL
    );
}
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -