Zoltan Haindrich created HIVE-18141:
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Summary: 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
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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