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Hive QA commented on HIVE-5921: ------------------------------- {color:red}Overall{color}: -1 at least one tests failed Here are the results of testing the latest attachment: https://issues.apache.org/jira/secure/attachment/12617062/HIVE-5921.3.patch {color:red}ERROR:{color} -1 due to 8 failed/errored test(s), 4457 tests executed *Failed tests:* {noformat} org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_bucket_map_join_1 org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_bucket_map_join_2 org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_decimal_udf org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_join32 org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_join32_lessSize org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_join33 org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_join_map_ppr org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_bucket_num_reducers {noformat} Test results: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/518/testReport Console output: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/518/console Messages: {noformat} Executing org.apache.hive.ptest.execution.PrepPhase Executing org.apache.hive.ptest.execution.ExecutionPhase Executing org.apache.hive.ptest.execution.ReportingPhase Tests exited with: TestsFailedException: 8 tests failed {noformat} This message is automatically generated. ATTACHMENT ID: 12617062 > Better heuristics for worst case statistics estimates for join, limit and > filter operator > ----------------------------------------------------------------------------------------- > > Key: HIVE-5921 > URL: https://issues.apache.org/jira/browse/HIVE-5921 > Project: Hive > Issue Type: Sub-task > Components: Query Processor, Statistics > Affects Versions: 0.13.0 > Reporter: Prasanth J > Assignee: Prasanth J > Fix For: 0.13.0 > > Attachments: HIVE-5921.1.patch, HIVE-5921.2.patch, HIVE-5921.3.patch > > > This is a subtask of HIVE-5369. In worst case (i.e; absence of column > statistics) HIVE-5849 improved the basic statistics with heuristics. But the > heuristics failed to provide better estimates in few cases. For example: > FILTER operator heuristics did not take into account the number of predicates > and if the predicate contains partition column. Also, JOIN estimates were too > aggressive and was not user configurable. -- This message was sent by Atlassian JIRA (v6.1#6144)