Uses of Class
org.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactory.FilterStatsRule

Packages that use StatsRulesProcFactory.FilterStatsRule

Package	Description
org.apache.hadoop.hive.ql.optimizer.stats.annotation

Uses of StatsRulesProcFactory.FilterStatsRule in org.apache.hadoop.hive.ql.optimizer.stats.annotation

Subclasses of StatsRulesProcFactory.FilterStatsRule in org.apache.hadoop.hive.ql.optimizer.stats.annotation

Modifier and Type

Class and Description

static class

StatsRulesProcFactory.JoinStatsRule JOIN operator can yield any of the following three cases The values of join keys are disjoint in both relations in which case T(RXS) = 0 (we need histograms for this) Join key is primary key on relation R and foreign key on relation S in which case every tuple in S will have a tuple in R T(RXS) = T(S) (we need histograms for this) Both R & S relation have same value for join-key.