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luochen <cluo8@uci.edu>
committed
on 20 Nov 18
[ASTERIXDB-2468] Extend CountVarToCountOneRule to support no group-by
- user model changes: no
- storage format changes: no
- interface chan… Show more
[ASTERIXDB-2468] Extend CountVarToCountOneRule to support no group-by

- user model changes: no

- storage format changes: no

- interface changes: no

Details:

- Extend CountVarToCountOneRule to support the no group-by case so

that count queries without group-by can be handled as well.

- Also extend this rule to support SQL_COUNT. In this case, count(v)

is replaced with count(1) only v is not nullable.

Change-Id: Ie0808912cf45d3a914ebf7f69ec42f73b33c071f

Reviewed-on: https://asterix-gerrit.ics.uci.edu/3024

Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Reviewed-by: Dmitry Lychagin <dmitry.lychagin@couchbase.com>

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