def __init__(self, indent=2, parent=None, memo=None):
self._table_refs = {}
self.extracted_subexprs = set()
self.subquery_memo = {}
self.indent = indent
self.parent = parent
self.always_alias = False
self.query = None
self._table_key_memo = {}
self.memo = memo or format.FormatMemo()
def __init__(self,
compiler,
indent=2,
parent=None,
memo=None,
params=None):
self.compiler = compiler
self._table_refs = {}
self.extracted_subexprs = set()
self.subquery_memo = {}
self.indent = indent
self.parent = parent
self.always_alias = False
self.query = None
self._table_key_memo = {}
self.memo = memo or fmt.FormatMemo()
self.params = params if params is not None else {}