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Hive QA commented on HIVE-23530: -------------------------------- Here are the results of testing the latest attachment: https://issues.apache.org/jira/secure/attachment/13003959/HIVE-23530.02.patch {color:red}ERROR:{color} -1 due to no test(s) being added or modified. {color:red}ERROR:{color} -1 due to 7 failed/errored test(s), 17268 tests executed *Failed tests:* {noformat} TestMiniLlapCliDriver - did not produce a TEST-*.xml file (likely timed out) (batchId=25) [script_pipe.q,parquet_complex_types_vectorization.q,vector_custom_udf_configure.q,autoColumnStats_6.q,mapreduce1.q,explainuser_2.q,mm_all.q,orc_merge4.q,dynamic_semijoin_user_level.q,orc_struct_type_vectorization.q,union_script.q,external_table_with_space_in_location_path.q,udf_printf.q,external_table_purge.q,insert_into6.q] org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_cluster] (batchId=68) org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_distribute_sort] (batchId=94) org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_partition_cluster] (batchId=110) org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_partitioned] (batchId=118) org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_partitioned_3] (batchId=94) org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_rewrite_window] (batchId=107) {noformat} Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/22610/testReport Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/22610/console Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-22610/ 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: 7 tests failed {noformat} This message is automatically generated. ATTACHMENT ID: 13003959 - PreCommit-HIVE-Build > Use SQL functions instead of compute_stats UDAF to compute column statistics > ---------------------------------------------------------------------------- > > Key: HIVE-23530 > URL: https://issues.apache.org/jira/browse/HIVE-23530 > Project: Hive > Issue Type: Improvement > Components: Statistics > Reporter: Jesus Camacho Rodriguez > Assignee: Jesus Camacho Rodriguez > Priority: Major > Attachments: HIVE-23530.01.patch, HIVE-23530.02.patch, > HIVE-23530.patch > > > Currently we compute column statistics by relying on the {{compute_stats}} > UDAF. For instance, for a given table {{tbl}}, the query to compute > statistics for columns is translated internally into: > {code} > SELECT compute_stats(c1), > compute_stats(c2), > ... > FROM tbl; > {code} > {{compute_stats}} produces data for the stats available for each column type, > e.g., struct<"max":long,"min":long,"countnulls":long,...>. > This issue is to produce a query that relies purely on SQL functions instead: > {code} > SELECT max(c1), min(c1), count(case when c1 is null then 1 else null end), > ... > FROM tbl; > {code} > This will allow us to deprecate the {{compute_stats}} UDAF since it mostly > duplicates functionality found in those other functions. Additionally, many > of those functions already provide a vectorized implementation so the > approach can potentially improve the performance of column stats collection. -- This message was sent by Atlassian Jira (v8.3.4#803005)