[ https://issues.apache.org/jira/browse/HIVE-16132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Deepak Jaiswal updated HIVE-16132: ---------------------------------- Attachment: HIVE-16132.5.patch Updated results for dynamic_semijoin_reduction > DataSize stats don't seem correct in semijoin opt branch > -------------------------------------------------------- > > Key: HIVE-16132 > URL: https://issues.apache.org/jira/browse/HIVE-16132 > Project: Hive > Issue Type: Bug > Components: HiveServer2 > Reporter: Deepak Jaiswal > Assignee: Deepak Jaiswal > Attachments: HIVE-16132.1.patch, HIVE-16132.2.patch, > HIVE-16132.3.patch, HIVE-16132.4.patch, HIVE-16132.5.patch > > > For the following operator tree snippet, the second Select is the start of a > semijoin optimization branch. Take a look at the Data size - it is the same > as the data size for its parent Select, even though the second select has > only a single bigint column in its projection (the parent has 2 columns). I > would expect the size to be 533328 (16 bytes * 33333). > Fixing this estimate may become important if we need to estimate the cost of > generating the min/max/bloomfilter. -- This message was sent by Atlassian JIRA (v6.3.15#6346)