Module patterns 

Structs

PatternLoweringRule

This rule is responsible for lowering a PatternNode into a set of filters and projections.

PatternNode

A logical node that represents a pattern match on a generic input.

Functions

compute_filters_for_pattern

Computes the filters that will be applied for a given PatternNode. Callers can use this function to only apply the filters of a pattern and ignore any projections to variables.

compute_schema_for_pattern

Computes a DataFusion schema for a general pattern of RDF terms.

compute_schema_for_triple_pattern

Computes a DataFusion schema for a SPARQL triple pattern.