public function dropTable($tableName, $schemaName = null, $ifExists = null)
    {
        return $this->dialect->dropTable($tableName, $schemaName, $ifExists);
    }
public function dropTable($tableName, $schemaName = null, $ifExists = null)
    {
        return $this->dialect->dropTable($tableName, $schemaName, $ifExists);
    }
public function dropTable ( $ tableName , $ schemaName = null , $ ifExists = null ) { return $ this -> dialect -> dropTable ( $ tableName , $ schemaName , $ ifExists ) ; }
Generates SQL to drop a table

@param string $tableName
@param string $schemaName
@param bool   $ifExists

@return string
Generates SQL to drop a table