Module datafusion::physical_plan::joins::utils

Join related functionality used both on logical and physical plans

Structs

ColumnIndex

Information about the index and placement (left or right) of the columns

JoinFilter

Filter applied before join output

Enums

JoinSide

Used in ColumnIndex to distinguish which side the index is for

Functions

adjust_right_output_partitioning

Adjust the right out partitioning to new Column Index

build_join_schema

Creates a schema for a join operation. The fields from the left side are first

check_join_is_valid

Checks whether the schemas “left” and “right” and columns “on” represent a valid join. They are valid whenever their columns’ intersection equals the set on

combine_join_equivalence_properties

Combine the Equivalence Properties for Join Node

cross_join_equivalence_properties

Calculate the Equivalence Properties for CrossJoin Node

partitioned_join_output_partitioning

Calculate the OutputPartitioning for Partitioned Join

Type Definitions

JoinOn

The on clause of the join, as vector of (left, right) columns.

JoinOnRef

Reference for JoinOn.