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https://issues.apache.org/jira/browse/HIVE-2344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
John Sichi updated HIVE-2344:
-----------------------------
Resolution: Fixed
Release Note: When predicate pushdown is enabled, Hive would previously
incorrectly push down predicates on non-deterministic function invocations when
those were indirectly referenced via a nested SELECT list rather than directly
in the filter expression. After this change, Hive no longer pushes down
filters over indirect references to function invocations of any kind
(regardless of determinism). Note that in Hive, even builtin operators such as
+ and CAST are treated as function invocations.
Hadoop Flags: [Reviewed]
Status: Resolved (was: Patch Available)
Committed. Thanks Amareshwari!
> filter is removed due to regression of HIVE-1538
> ------------------------------------------------
>
> Key: HIVE-2344
> URL: https://issues.apache.org/jira/browse/HIVE-2344
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.8.0
> Reporter: He Yongqiang
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.8.0
>
> Attachments: hive-patch-2344-2.txt, hive-patch-2344.txt,
> ppd_udf_col.q.out.txt
>
>
> select * from
> (
> select type_bucket,randum123
> from (SELECT *, cast(rand() as double) AS randum123 FROM tbl where ds = ...)
> a
> where randum123 <=0.1)s where s.randum123>0.1 limit 20;
> This is returning results...
> and
> explain
> select type_bucket,randum123
> from (SELECT *, cast(rand() as double) AS randum123 FROM tbl where ds = ...)
> a
> where randum123 <=0.1
> shows that there is no filter.
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