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Posted to issues@hive.apache.org by "Laljo John Pullokkaran (JIRA)" <ji...@apache.org> on 2016/01/06 03:39:39 UTC
[jira] [Commented] (HIVE-11603) IndexOutOfBoundsException thrown
when accessing a union all subquery and filtering on a column which does
not exist in all underlying tables
[ https://issues.apache.org/jira/browse/HIVE-11603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15084573#comment-15084573 ]
Laljo John Pullokkaran commented on HIVE-11603:
-----------------------------------------------
This is no more an issue on master been fixed by HIVE-12008.
> IndexOutOfBoundsException thrown when accessing a union all subquery and filtering on a column which does not exist in all underlying tables
> --------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-11603
> URL: https://issues.apache.org/jira/browse/HIVE-11603
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.14.0, 1.3.0, 1.2.1
> Environment: Hadoop 2.6
> Reporter: Nicholas Brenwald
> Assignee: Laljo John Pullokkaran
> Priority: Minor
> Attachments: HIVE-11603.1.patch, HIVE-11603.2.patch
>
>
> Create two empty tables t1 and t2
> {code}
> CREATE TABLE t1(c1 STRING);
> CREATE TABLE t2(c1 STRING, c2 INT);
> {code}
> Create a view on these two tables
> {code}
> CREATE VIEW v1 AS
> SELECT c1, c2
> FROM (
> SELECT c1, CAST(NULL AS INT) AS c2 FROM t1
> UNION ALL
> SELECT c1, c2 FROM t2
> ) x;
> {code}
> Then run
> {code}
> SELECT COUNT(*) from v1
> WHERE c2 = 0;
> {code}
> We expect to get a result of zero, but instead the query fails with stack trace:
> {code}
> Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
> at java.util.ArrayList.rangeCheck(ArrayList.java:635)
> at java.util.ArrayList.get(ArrayList.java:411)
> at org.apache.hadoop.hive.ql.exec.UnionOperator.initializeOp(UnionOperator.java:86)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:362)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:481)
> at org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:438)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:375)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:481)
> at org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:438)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:375)
> at org.apache.hadoop.hive.ql.exec.MapOperator.initializeMapOperator(MapOperator.java:442)
> at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.configure(ExecMapper.java:119)
> ... 22 more
> {code}
> Workarounds include disabling ppd,
> {code}
> set hive.optimize.ppd=false;
> {code}
> Or changing the view so that column c2 is null cast to double:
> {code}
> CREATE VIEW v1_workaround AS
> SELECT c1, c2
> FROM (
> SELECT c1, CAST(NULL AS DOUBLE) AS c2 FROM t1
> UNION ALL
> SELECT c1, c2 FROM t2
> ) x;
> {code}
> The problem seems to occur in branch-1.1, branch-1.2, branch-1 but seems to be resolved in master (2.0.0)
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