Drop the primary key.
$table: The table to be altered.
TRUE if the primary key was successfully dropped, FALSE if there was no primary key on this table to begin with.
Overrides DatabaseSchema::dropPrimaryKey
public function dropPrimaryKey($table) {
if (!$this
->indexExists($table, 'PRIMARY')) {
return FALSE;
}
$this->connection
->query('ALTER TABLE {' . $table . '} DROP PRIMARY KEY');
return TRUE;
}