Marios Trivyzas 644ae49817
SQL: Fix behaviour of COUNT(DISTINCT <literal>) (#56869) (#56932)
Previously `COUNT(DISTINCT <literal>)` was returning the same result
as `COUNT(<literal>)` which is not correct as it should always return 1
if there is at least one matching row (bucket if there is a GROUP BY),
or 0 otherwise.

(cherry picked from commit 7f7d7562d43034907f432d39d0d66f490d78f4a8)
2020-05-19 11:19:06 +02:00
..