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#Org.apache.hadoop.hive.ql.optimizer.stats.annotation Classes and Interfaces - 11 results found.
NameDescriptionTypePackageFramework
AnnotateStatsProcCtxClassorg.apache.hadoop.hive.ql.optimizer.stats.annotationApache Hive
AnnotateWithStatisticsClassorg.apache.hadoop.hive.ql.optimizer.stats.annotationApache Hive
StatsRulesProcFactoryClassorg.apache.hadoop.hive.ql.optimizer.stats.annotationApache Hive
StatsRulesProcFactory .DefaultStatsRuleDefault rule is to aggregate the statistics from all its parent operators.Classorg.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactoryApache Hive
StatsRulesProcFactory .FilterStatsRuleFILTER operator does not change the average row size but it does change the number of rows emitted.Classorg.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactoryApache Hive
StatsRulesProcFactory .GroupByStatsRuleGROUPBY operator changes the number of rows.Classorg.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactoryApache Hive
StatsRulesProcFactory .JoinStatsRuleJOIN 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)JoinClassorg.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactoryApache Hive
StatsRulesProcFactory .LimitStatsRuleLIMIT operator changes the number of rows and thereby the data size.Classorg.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactoryApache Hive
StatsRulesProcFactory .ReduceSinkStatsRuleReduceSink operator does not change any of the statistics.Classorg.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactoryApache Hive
StatsRulesProcFactory .SelectStatsRuleSELECT operator doesn't change the number of rows emitted from the parent operator.Classorg.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactoryApache Hive
StatsRulesProcFactory .TableScanStatsRuleCollect basic statistics like number of rows, data size and column level statistics from the table.Classorg.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactoryApache Hive