DimensionKeyColumnTag

class lsst.daf.butler.DimensionKeyColumnTag(dimension: str)

Bases: lsst.daf.butler.core._column_tags._BaseColumnTag

An identifier for Relation columns that represent a dimension primary key value.

Attributes Summary

dimension	Name of the dimension (str).
is_key
qualified_name

Methods Summary

filter_from(tags)
generate(dimensions)	Return a list of column tags from an iterable of dimension names.

Attributes Documentation

dimension

Name of the dimension (str).

is_key

qualified_name

Methods Documentation

classmethod filter_from(tags: collections.abc.Iterable[Any]) → set

classmethod generate(dimensions: collections.abc.Iterable[str]) → list

Return a list of column tags from an iterable of dimension names.

Parameters:

dimensions : Iterable [ str ]

Dimension names.

Returns:

tags : list [ DimensionKeyColumnTag ]

List of column tags.