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https://reviews.apache.org/r/60349/
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Review request for hive and Ashutosh Chauhan.
Bugs: HIVE-16793
https://issues.apache.org/jira/browse/HIVE-16793
Repository: hive-git
Description
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For scalar subqueries we skip adding UDF sq_count_check which have aggregates
but we add it if there is a explicit group by present. We can skip it if group
by is present but group by keys are constant. This patch adds a rule to do this
optimization.
Diffs
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ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveRemoveSqCountCheck.java
PRE-CREATION
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveSubQueryRemoveRule.java
83d3f7436d
ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java 348331e052
ql/src/test/results/clientnegative/subquery_scalar_multi_rows.q.out
0a780db7ef
ql/src/test/results/clientpositive/llap/subquery_scalar.q.out e94edff262
ql/src/test/results/clientpositive/llap/subquery_select.q.out 202980e975
ql/src/test/results/clientpositive/perf/query23.q.out 1fd8cb4f25
ql/src/test/results/clientpositive/perf/query44.q.out 566548089c
ql/src/test/results/clientpositive/perf/query54.q.out 3cbcbe33f9
ql/src/test/results/clientpositive/perf/query58.q.out acdfc07718
ql/src/test/results/clientpositive/perf/query6.q.out 03fff79951
Diff: https://reviews.apache.org/r/60349/diff/1/
Testing
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-Pre-commit testing
- new tests
Thanks,
Vineet Garg
