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https://issues.apache.org/jira/browse/HIVE-15530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15801534#comment-15801534
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Hive QA commented on HIVE-15530:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12845794/HIVE-15530.3.patch
{color:green}SUCCESS:{color} +1 due to 2 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 7 failed/errored test(s), 10917 tests
executed
*Failed tests:*
{noformat}
TestDerbyConnector - did not produce a TEST-*.xml file (likely timed out)
(batchId=233)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[case_sensitivity]
(batchId=61)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[input_testxpath]
(batchId=28)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[udf_coalesce]
(batchId=75)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_basic]
(batchId=134)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_schema_evol_3a]
(batchId=135)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_if_expr]
(batchId=139)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/2801/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/2801/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-2801/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
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: 7 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12845794 - PreCommit-HIVE-Build
> Optimize the column stats update logic in table alteration
> ----------------------------------------------------------
>
> Key: HIVE-15530
> URL: https://issues.apache.org/jira/browse/HIVE-15530
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Yibing Shi
> Assignee: Yibing Shi
> Attachments: HIVE-15530.1.patch, HIVE-15530.2.patch,
> HIVE-15530.3.patch
>
>
> Currently when a table is altered, if any of below conditions is true, HMS
> would try to update column statistics for the table:
> # database name is changed
> # table name is changed
> # old columns and new columns are not the same
> As a result, when a column is added to a table, Hive also tries to update
> column statistics, which is not necessary. We can loose the last condition by
> checking whether all existing columns are changed or not. If not, we don't
> have to update stats info.
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