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Hive QA commented on HIVE-21857: -------------------------------- Here are the results of testing the latest attachment: https://issues.apache.org/jira/secure/attachment/12972498/HIVE-21857.06.patch {color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified. {color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 16335 tests executed *Failed tests:* {noformat} org.apache.hadoop.hive.cli.TestMiniDruidCliDriver.testCliDriver[druidmini_test_ts] (batchId=197) org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[external_jdbc_table_perf] (batchId=184) {noformat} Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/17694/testReport Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/17694/console Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-17694/ Messages: {noformat} Executing org.apache.hive.ptest.execution.TestCheckPhase Executing org.apache.hive.ptest.execution.PrepPhase Executing org.apache.hive.ptest.execution.YetusPhase Executing org.apache.hive.ptest.execution.ExecutionPhase Executing org.apache.hive.ptest.execution.ReportingPhase Tests exited with: TestsFailedException: 2 tests failed {noformat} This message is automatically generated. ATTACHMENT ID: 12972498 - PreCommit-HIVE-Build > Sort conditions in a filter predicate to accelerate query processing > -------------------------------------------------------------------- > > Key: HIVE-21857 > URL: https://issues.apache.org/jira/browse/HIVE-21857 > Project: Hive > Issue Type: New Feature > Components: CBO > Reporter: Jesus Camacho Rodriguez > Assignee: Jesus Camacho Rodriguez > Priority: Major > Labels: pull-request-available > Attachments: HIVE-21857.01.patch, HIVE-21857.02.patch, > HIVE-21857.03.patch, HIVE-21857.04.patch, HIVE-21857.05.patch, > HIVE-21857.06.patch > > Time Spent: 1h 10m > Remaining Estimate: 0h > > Following approach similar to > http://db.cs.berkeley.edu/jmh/miscpapers/sigmod93.pdf . > To reorder predicates in AND conditions, we could rank each of elements in > the clauses in increasing order based on following formula: > {code} > rank = (selectivity - 1) / cost per tuple > {code} > Similarly, for OR conditions: > {code} > rank = (-selectivity) / cost per tuple > {code} > Selectivity can be computed with FilterSelectivityEstimator. For cost per > tuple, we will need to come up with some heuristic based on how expensive is > the evaluation of the functions contained in that predicate. Custom UDFs > could be annotated. -- This message was sent by Atlassian JIRA (v7.6.3#76005)