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https://issues.apache.org/jira/browse/HIVE-17148?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16103612#comment-16103612
]
Hive QA commented on HIVE-17148:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12879177/HIVE-17148.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 15 failed/errored test(s), 11012 tests
executed
*Failed tests:*
{noformat}
TestPerfCliDriver - did not produce a TEST-*.xml file (likely timed out)
(batchId=235)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[nested_column_pruning]
(batchId=32)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[semijoin5] (batchId=15)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[llap_smb]
(batchId=144)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[dynamic_semijoin_reduction_2]
(batchId=159)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[lineage2]
(batchId=156)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_in]
(batchId=157)
org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver[spark_dynamic_partition_pruning]
(batchId=168)
org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver[spark_vectorized_dynamic_partition_pruning]
(batchId=168)
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainuser_3]
(batchId=99)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[subquery_in]
(batchId=128)
org.apache.hadoop.hive.metastore.TestHiveMetaStoreStatsMerge.testStatsMerge
(batchId=206)
org.apache.hive.hcatalog.api.TestHCatClient.testPartitionRegistrationWithCustomSchema
(batchId=179)
org.apache.hive.hcatalog.api.TestHCatClient.testPartitionSpecRegistrationWithCustomSchema
(batchId=179)
org.apache.hive.hcatalog.api.TestHCatClient.testTableSchemaPropagation
(batchId=179)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/6153/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/6153/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-6153/
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: 15 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12879177 - PreCommit-HIVE-Build
> Incorrect result for Hive join query with COALESCE in WHERE condition
> ---------------------------------------------------------------------
>
> Key: HIVE-17148
> URL: https://issues.apache.org/jira/browse/HIVE-17148
> Project: Hive
> Issue Type: Bug
> Components: CBO
> Affects Versions: 2.1.1
> Reporter: Vlad Gudikov
> Assignee: Vlad Gudikov
> Attachments: HIVE-17148.patch
>
>
> The issue exists in Hive-2.1. In Hive-1.2 the query works fine with cbo
> enabled:
> STEPS TO REPRODUCE:
> {code}
> Step 1: Create a table ct1
> create table ct1 (a1 string,b1 string);
> Step 2: Create a table ct2
> create table ct2 (a2 string);
> Step 3 : Insert following data into table ct1
> insert into table ct1 (a1) values ('1');
> Step 4 : Insert following data into table ct2
> insert into table ct2 (a2) values ('1');
> Step 5 : Execute the following query
> select * from ct1 c1, ct2 c2 where COALESCE(a1,b1)=a2;
> {code}
> ACTUAL RESULT:
> {code}
> The query returns nothing;
> {code}
> EXPECTED RESULT:
> {code}
> 1 NULL 1
> {code}
> The issue seems to be because of the incorrect query plan. In the plan we can
> see:
> predicate:(a1 is not null and b1 is not null)
> which does not look correct. As a result, it is filtering out all the rows is
> any column mentioned in the COALESCE has null value.
> Please find the query plan below:
> {code}
> Plan optimized by CBO.
> Vertex dependency in root stage
> Map 1 <- Map 2 (BROADCAST_EDGE)
> Stage-0
> Fetch Operator
> limit:-1
> Stage-1
> Map 1
> File Output Operator [FS_10]
> Map Join Operator [MAPJOIN_15] (rows=1 width=4)
>
> Conds:SEL_2.COALESCE(_col0,_col1)=RS_7._col0(Inner),HybridGraceHashJoin:true,Output:["_col0","_col1","_col2"]
> <-Map 2 [BROADCAST_EDGE]
> BROADCAST [RS_7]
> PartitionCols:_col0
> Select Operator [SEL_5] (rows=1 width=1)
> Output:["_col0"]
> Filter Operator [FIL_14] (rows=1 width=1)
> predicate:a2 is not null
> TableScan [TS_3] (rows=1 width=1)
> default@ct2,c2,Tbl:COMPLETE,Col:NONE,Output:["a2"]
> <-Select Operator [SEL_2] (rows=1 width=4)
> Output:["_col0","_col1"]
> Filter Operator [FIL_13] (rows=1 width=4)
> predicate:(a1 is not null and b1 is not null)
> TableScan [TS_0] (rows=1 width=4)
> default@ct1,c1,Tbl:COMPLETE,Col:NONE,Output:["a1","b1"]
> {code}
> This happens only if join is inner type, otherwise HiveJoinAddNotRule which
> creates this problem is skipped.
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