Schema¶

class lsst.daf.butler.Schema(config=None, limited=False)¶

The SQL schema for a Butler Registry.

Parameters:	config : `SchemaConfig` or `str`, optional Load configuration. Defaults will be read if `config` is not a `SchemaConfig`. limited : `bool` If `True`, ignore tables, views, and associated foreign keys whose config descriptions include a “limited” key set to `False`.
Attributes:	metadata : `sqlalchemy.MetaData` The sqlalchemy schema description. tables : `dict` A mapping from table or view name to the associated SQLAlchemy object. Note that this contains both true tables and views. views : `frozenset` The names of entries in `tables` that are actually implemented as views.