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https://issues.apache.org/jira/browse/HIVE-18141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16264614#comment-16264614
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Ashutosh Chauhan commented on HIVE-18141:
-----------------------------------------
+1
> Fix StatsUtils.combineRange to combine intervals
> ------------------------------------------------
>
> Key: HIVE-18141
> URL: https://issues.apache.org/jira/browse/HIVE-18141
> Project: Hive
> Issue Type: Sub-task
> Components: Statistics
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Attachments: HIVE-18141.01.patch
>
>
> the current [combinedRange
> implementation|https://github.com/apache/hive/blob/d9924ab3e285536f7e2cc15ecbea36a78c59c66d/ql/src/java/org/apache/hadoop/hive/ql/stats/StatsUtils.java#L1984]
> in its current form "combines" only ranges which contain eachother
> but the comments suggests that the intention was to capture the case when the
> 2 intervals are overlap; can be checked with the following testcase:
> {code}
> @Test
> public void test11() {
> Range r1 = new Range(0, 1);
> Range r2 = new Range(1, 11);
> Range r3 = StatsUtils.combineRange(r1, r2);
> assertNotNull(r3);
> }
> {code}
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