Module extract_equijoin_predicate 

ExtractEquijoinPredicate identifies equality join (equijoin) predicates

Structs

ExtractEquijoinPredicate

Optimizer that splits conjunctive join predicates into equijoin predicates and (other) filter predicates.

Functions

split_eq_and_noneq_join_predicate 🔒

Splits an ANDed filter expression into equijoin predicates and remaining filters. Returns all equijoin predicates and the remaining filters combined with AND.

split_is_not_distinct_from_and_other_join_predicate 🔒

See split_eq_and_noneq_join_predicate’s comment for the idea. This function is splitting out is not distinct from expressions instead of equal exprs. The is not distinct from exprs will be return as EquijoinPredicate.

split_op_and_other_join_predicates 🔒

See comments in split_eq_and_noneq_join_predicate for details.

Type Aliases

EquijoinPredicate 🔒