public function dropSequence($sequenceName)
{
$this->checkClosed();
$parts = \blaze\lang\String::asWrapper($sequenceName)->split('_');
if (count($parts) !== 3) {
throw new \blaze\ds\DataSourceException('Sequencenames in this driver must have the following structure: tablename_columnname_seq');
}
$tbl = $this->getTable($parts[0]);
$col = $tbl->getColumn($parts[1]);
$this->databaseMetaData->getConnection()->createStatement()->executeUpdate('ALTER TABLE ' . $parts[0] . ' MODIFY COLUMN ' . ColumnMetaDataImpl::getColumnDefinition($col, null, true, true, false));
}
public function addColumn(\blaze\ds\meta\ColumnMetaData $column, $newName = null)
{
if (!$this->initialized) {
if ($newName === null) {
$this->notInitializedColumns[\blaze\lang\String::asNative($column->getName())] = $column;
} else {
$this->notInitializedColumns[\blaze\lang\String::asNative($newName)] = $column;
}
} else {
$this->checkClosed();
$stmt = $this->schema->getDatabaseMetaData()->getConnection()->createStatement();
$stmt->executeQuery('ALTER TABLE ' . $this->tableName . ' ADD COLUMN ' . ColumnMetaDataImpl::getColumnDefinition($column, $newName));
}
}