def rename_table(self, from_table: str, to_table: str) -> Optional[int]:
        """Renames a table. MySQL-specific."""
        if not self.table_exists(from_table):
            log.info("Skipping renaming of table " + from_table +
                     " (doesn't exist)")
            return None
        if self.table_exists(to_table):
            raise RuntimeError("Can't rename table {} to {}: destination "
                               "already exists!".format(from_table, to_table))
        log.info("Renaming table {} to {}", from_table, to_table)
        sql = "RENAME TABLE {} TO {}".format(from_table, to_table)
        return self.db_exec_literal(sql)
def rename_table ( self , from_table : str , to_table : str ) -> Optional [ int ] : if not self . table_exists ( from_table ) : log . info ( "Skipping renaming of table " + from_table + " (doesn't exist)" ) return None if self . table_exists ( to_table ) : raise RuntimeError ( "Can't rename table {} to {}: destination " "already exists!" . format ( from_table , to_table ) ) log . info ( "Renaming table {} to {}" , from_table , to_table ) sql = "RENAME TABLE {} TO {}" . format ( from_table , to_table ) return self . db_exec_literal ( sql )
Renames a table. MySQL-specific.