[jira] [Commented] (HIVE-25275) OOM during query planning due to HiveJoinPushTransitivePredicatesRule matching infinitely

["Stamatis Zampetakis (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-25275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17367953#comment-17367953 ] 

Stamatis Zampetakis commented on HIVE-25275:
--------------------------------------------

Copying here some of the findings from the internal case. 

The problem seems to be a combination of two, three optimizer rules that lead to an expression getting bigger and bigger, leading to an infinite loop of rule matching in the {{HepPlanner}}. The following two rules seem to be the root of the problem:

* HiveJoinPushTransitivePredicatesRule
* HiveFilterProjectTransposeRule


> OOM during query planning due to HiveJoinPushTransitivePredicatesRule matching infinitely
> -----------------------------------------------------------------------------------------
>
>                 Key: HIVE-25275
>                 URL: https://issues.apache.org/jira/browse/HIVE-25275
>             Project: Hive
>          Issue Type: Bug
>            Reporter: László Pintér
>            Priority: Major
>
> While running the following query OOM is raised during the planning phase
> {code:sql}
> CREATE TABLE A (`value_date` date) STORED AS ORC;
> CREATE TABLE B (`business_date` date) STORED AS ORC;
> SELECT A.VALUE_DATE
> FROM A, B
> WHERE A.VALUE_DATE = BUSINESS_DATE
>   AND A.VALUE_DATE = TRUNC(BUSINESS_DATE, 'MONTH');
> {code}



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