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Posted to gitbox@hive.apache.org by GitBox <gi...@apache.org> on 2021/05/31 14:23:23 UTC
[GitHub] [hive] kasakrisz opened a new pull request #2334: HIVE-25166: Query with multiple count(distinct constant) fails
kasakrisz opened a new pull request #2334:
URL: https://github.com/apache/hive/pull/2334
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### What changes were proposed in this pull request?
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Copy grouping sets when rewriting gby constant keys in `HiveRelFieldTrimmer`
### Why are the changes needed?
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`HiveExpandDistinctAggregatesRule` introduce an Aggregate with grouping sets even if query projects only count distinct constant expressions.
### Does this PR introduce _any_ user-facing change?
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Yes. Queries projects only count distinct constant expressions won't fail.
### How was this patch tested?
```
mvn test -Dtest.output.overwrite -DskipSparkTests -Dtest=TestMiniLlapCliDriver -Dqfile=multi_count_distinct_null.q -pl itests/qtest -Pitests
```
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[GitHub] [hive] kasakrisz merged pull request #2334: HIVE-25166: Query with multiple count(distinct constant) fails
Posted by GitBox <gi...@apache.org>.
kasakrisz merged pull request #2334:
URL: https://github.com/apache/hive/pull/2334
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