SourceSnapshotCache

SourceSnapshotCache()

Cache expression results as a table in a source backend, with a stable key.

Pairs SnapshotStrategy with SourceStorage: the result is stored as a table in the source backend, and the cache key is computed from the expression structure only, so source-data changes do not invalidate cached results. Build it with :meth:from_kwargs.

Parameters

Name	Type	Description	Default
source	ibis.backends.BaseBackend	Backend the cache table lives in. Defaults to xorq’s default backend.	required