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ASF GitHub Bot logged work on HIVE-21231: ----------------------------------------- Author: ASF GitHub Bot Created on: 27/Mar/19 19:57 Start Date: 27/Mar/19 19:57 Worklog Time Spent: 10m Work Description: miklosgergely commented on pull request #580: HIVE-21231 HiveJoinAddNotNullRule support for range predicates URL: https://github.com/apache/hive/pull/580 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 219561) Time Spent: 10m Remaining Estimate: 0h > HiveJoinAddNotNullRule support for range predicates > --------------------------------------------------- > > Key: HIVE-21231 > URL: https://issues.apache.org/jira/browse/HIVE-21231 > Project: Hive > Issue Type: Improvement > Components: CBO > Reporter: Jesus Camacho Rodriguez > Assignee: Miklos Gergely > Priority: Major > Labels: newbie, pull-request-available > Attachments: HIVE-21231.01.patch, HIVE-21231.02.patch, > HIVE-21231.03.patch, HIVE-21231.04.patch, HIVE-21231.05.patch, > HIVE-21231.06.patch > > Time Spent: 10m > Remaining Estimate: 0h > > For instance, given the following query: > {code:sql} > SELECT t0.col0, t0.col1 > FROM > ( > SELECT col0, col1 FROM tab > ) AS t0 > INNER JOIN > ( > SELECT col0, col1 FROM tab > ) AS t1 > ON t0.col0 < t1.col0 AND t0.col1 > t1.col1 > {code} > we could still infer that col0 and col1 cannot be null for any of the inputs. > Currently we do not. -- This message was sent by Atlassian JIRA (v7.6.3#76005)