On Fri, Mar 24, 2017 at 1:16 PM, Alvaro Herrera <alvhe...@alvh.no-ip.org> wrote:
> Implement multivariate n-distinct coefficients

dromedary and arapaima have failures like this, which seems likely
related to this commit:

   SELECT COUNT(*) FROM ndistinct GROUP BY a, d;
                               QUERY PLAN
!  HashAggregate  (cost=225.00..235.00 rows=1000 width=16)
     Group Key: a, d
!    ->  Seq Scan on ndistinct  (cost=0.00..150.00 rows=10000 width=8)
  (3 rows)

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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