hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Chaoyu Tang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-8784) Querying partition does not work with JDO enabled against PostgreSQL
Date Fri, 07 Nov 2014 18:43:34 GMT
Chaoyu Tang created HIVE-8784:
---------------------------------

             Summary: Querying partition does not work with JDO enabled against PostgreSQL
                 Key: HIVE-8784
                 URL: https://issues.apache.org/jira/browse/HIVE-8784
             Project: Hive
          Issue Type: Bug
          Components: Metastore
    Affects Versions: 0.15.0
            Reporter: Chaoyu Tang
            Assignee: Chaoyu Tang
             Fix For: 0.15.0


Querying a partition in PostgreSQL fails when using JDO (with hive.metastore.try.direct.sql=false)
. Following is the reproduce example:
{code}
create table partition_test_multilevel (key string, value string) partitioned by (level1 string,
level2 string, level3 string);

insert overwrite table partition_test_multilevel partition(level1='1111', level2='111', level3='11')
select key, value from srcpart tablesample (11 rows);
insert overwrite table partition_test_multilevel partition(level1='1111', level2='222', level3='11')
select key, value from srcpart tablesample (15 rows);
insert overwrite table partition_test_multilevel partition(level1='1111', level2='333', level3='11')
select key, value from srcpart tablesample (20 rows);

select level1, level2, level3, count(*) from partition_test_multilevel where level2 <=
'222' group by level1, level2, level3;
{code}
The query fails with following error:
{code}
      Caused by: org.apache.hadoop.hive.ql.parse.SemanticException: MetaException(message:Invocation
of method "substring" on "StringExpression" requires argument 1 of type "NumericExpression")
	at org.apache.hadoop.hive.ql.optimizer.ppr.PartitionPruner.getPartitionsFromServer(PartitionPruner.java:392)
	at org.apache.hadoop.hive.ql.optimizer.ppr.PartitionPruner.prune(PartitionPruner.java:215)
	at org.apache.hadoop.hive.ql.optimizer.ppr.PartitionPruner.prune(PartitionPruner.java:139)
	at org.apache.hadoop.hive.ql.parse.ParseContext.getPrunedPartitions(ParseContext.java:619)
	at org.apache.hadoop.hive.ql.optimizer.pcr.PcrOpProcFactory$FilterPCR.process(PcrOpProcFactory.java:110)
	... 21 more
{code}

It is because the JDO pushdown filter generated for a query having inequality/between partition
predicate uses DN indexOf function which is not working properly with postgresql (see http://www.datanucleus.org/servlet/jira/browse/NUCRDBMS-840)




--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message