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https://issues.apache.org/jira/browse/HIVE-15327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15711903#comment-15711903
]
Hive QA commented on HIVE-15327:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12841276/HIVE-15327.patch
{color:green}SUCCESS:{color} +1 due to 2 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 9 failed/errored test(s), 10756 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.org.apache.hadoop.hive.cli.TestCliDriver
(batchId=50)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[join_emit_interval]
(batchId=9)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample2] (batchId=5)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample4] (batchId=15)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample6] (batchId=60)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample7] (batchId=60)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample9] (batchId=38)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_schema_evol_3a]
(batchId=134)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[transform_ppr2]
(batchId=134)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/2358/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/2358/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-2358/
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: 9 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12841276 - PreCommit-HIVE-Build
> Outerjoin might produce wrong result depending on joinEmitInterval value
> ------------------------------------------------------------------------
>
> Key: HIVE-15327
> URL: https://issues.apache.org/jira/browse/HIVE-15327
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 1.3.0, 2.2.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Critical
> Attachments: HIVE-15327.patch
>
>
> If joinEmitInterval is smaller than the group size, outerjoins might produce
> records with NULL appended values multiple times (once per group).
> HIVE-4689 targeted the same problem. However, the fix does not seem to cover
> all cases (in particular, it will not apply to left outer joins with filter
> conditions on the left input). The solution in HIVE-4689 was to disable
> (override) joinEmitInterval value for those cases. This fix follows the same
> approach.
> To reproduce the problem:
> {code}
> set hive.strict.checks.cartesian.product=false;
> set hive.join.emit.interval=1;
> CREATE TABLE test1 (key INT, value INT, col_1 STRING);
> INSERT INTO test1 VALUES (99, 0, 'Alice');
> INSERT INTO test1 VALUES (99, 2, 'Mat');
> INSERT INTO test1 VALUES (100, 1, 'Bob');
> INSERT INTO test1 VALUES (101, 2, 'Car');
> CREATE TABLE test2 (key INT, value INT, col_2 STRING);
> INSERT INTO test2 VALUES (102, 2, 'Del');
> INSERT INTO test2 VALUES (103, 2, 'Ema');
> INSERT INTO test2 VALUES (104, 3, 'Fli');
> -- Equi-condition and condition on one input (left outer join)
> SELECT *
> FROM test1 LEFT OUTER JOIN test2
> ON (test1.value=test2.value AND test1.key between 100 and 102)
> LIMIT 10;
> -- Condition on one input (left outer join)
> SELECT *
> FROM test1 LEFT OUTER JOIN test2
> ON (test1.key between 100 and 102)
> LIMIT 10;
> {code}
> For the *first* query, current (incorrect) result is:
> {noformat}
> 99 0 Alice NULL NULL NULL
> 100 1 Bob NULL NULL NULL
> 101 2 Car 103 2 Ema
> 99 2 Mat NULL NULL NULL
> 101 2 Car 102 2 Del
> 99 2 Mat NULL NULL NULL
> {noformat}
> Expected (correct) result is:
> {noformat}
> 99 0 Alice NULL NULL NULL
> 100 1 Bob NULL NULL NULL
> 101 2 Car 103 2 Ema
> 101 2 Car 102 2 Del
> 99 2 Mat NULL NULL NULL
> {noformat}
> For the *second* query, current (incorrect) result is:
> {noformat}
> 101 2 Car 104 3 Fli
> 100 1 Bob 104 3 Fli
> 99 2 Mat NULL NULL NULL
> 99 0 Alice NULL NULL NULL
> 101 2 Car 103 2 Ema
> 100 1 Bob 103 2 Ema
> 99 2 Mat NULL NULL NULL
> 99 0 Alice NULL NULL NULL
> 101 2 Car 102 2 Del
> 100 1 Bob 102 2 Del
> {noformat}
> Expected (correct) result is:
> {noformat}
> 101 2 Car 104 3 Fli
> 101 2 Car 103 2 Ema
> 101 2 Car 102 2 Del
> 100 1 Bob 104 3 Fli
> 100 1 Bob 103 2 Ema
> 100 1 Bob 102 2 Del
> 99 2 Mat NULL NULL NULL
> 99 0 Alice NULL NULL NULL
> {noformat}
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