org.apache.druid.segment.join.filter.rewrite

Class RhsRewriteCandidates

java.lang.Object

org.apache.druid.segment.join.filter.rewrite.RhsRewriteCandidates

public class RhsRewriteCandidates
extends Object

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
Set<RhsRewriteCandidate>	getRhsRewriteCandidates()
static RhsRewriteCandidates	getRhsRewriteCandidates(List<Filter> normalizedJoinTableClauses, Equiconditions equiconditions, JoinableClauses joinableClauses) Determine candidates for filter rewrites.
int	hashCode()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Method Detail

getRhsRewriteCandidates

public Set<RhsRewriteCandidate> getRhsRewriteCandidates()

getRhsRewriteCandidates

public static RhsRewriteCandidates getRhsRewriteCandidates(List<Filter> normalizedJoinTableClauses,
                                                           Equiconditions equiconditions,
                                                           JoinableClauses joinableClauses)

Determine candidates for filter rewrites. A candidate is an RHS column that appears in a filter, along with the value being filtered on, plus the joinable clause associated with the table that the RHS column is from. These candidates are redued to filter rewrite correlations.

Parameters:

normalizedJoinTableClauses -

equiconditions -

joinableClauses -

Returns:

A set of candidates for filter rewrites.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object