Tim Armstrong has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/14131 )

Change subject: IMPALA-7604: part 1: tests for agg cardinality
......................................................................

IMPALA-7604: part 1: tests for agg cardinality

Add tests that demonstrate bugs with overflow and
multiple aggregation classes and provide a baseline
to demonstrate the effects of the bugfixes.

Testing:
Added planner tests:
* Cardinality estimates with multiple groups (both grouping and
  non-grouping aggs).
* Overflow case from multiplication of grouping expr cardinality.
* Overflow handling of addition of multiple groups.

Change-Id: I59eaddbc5be253793293af064bb2d28a425564e1
Reviewed-on: http://gerrit.cloudera.org:8080/14131
Reviewed-by: Bikramjeet Vig <[email protected]>
Tested-by: Tim Armstrong <[email protected]>
---
M fe/src/test/java/org/apache/impala/planner/PlannerTest.java
A testdata/workloads/functional-planner/queries/PlannerTest/card-agg.test
2 files changed, 669 insertions(+), 0 deletions(-)

Approvals:
  Bikramjeet Vig: Looks good to me, approved
  Tim Armstrong: Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I59eaddbc5be253793293af064bb2d28a425564e1
Gerrit-Change-Number: 14131
Gerrit-PatchSet: 7
Gerrit-Owner: Tim Armstrong <[email protected]>
Gerrit-Reviewer: Bharath Vissapragada <[email protected]>
Gerrit-Reviewer: Bikramjeet Vig <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>

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