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From "Lars Francke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8576) Guaranteed NPE in StatsRulesProcFactory
Date Thu, 23 Oct 2014 22:13:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14182068#comment-14182068
] 

Lars Francke commented on HIVE-8576:
------------------------------------

I don't think the test failures are related to the patch.

> Guaranteed NPE in StatsRulesProcFactory
> ---------------------------------------
>
>                 Key: HIVE-8576
>                 URL: https://issues.apache.org/jira/browse/HIVE-8576
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Lars Francke
>            Assignee: Lars Francke
>         Attachments: HIVE-8576.1.patch
>
>
> Code looks like this:
> {code}
>     private List<Integer> getPrimaryKeyCandidates(List<Operator<? extends
OperatorDesc>> ops) {
>       List<Integer> result = Lists.newArrayList();
>       if (ops != null || !ops.isEmpty()) {
>         for (int i = 0; i < ops.size(); i++) {
> {code}
> The {{||}} should be {{&&}} as the current {{if}} statement can be rewritten
as {{!(ops == null && ops.isEmpty())}} which doesn't make sense.
> Or am I missing something?



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