Adam Witney <awitney(at)sgul(dot)ac(dot)uk> writes:
> bugasbase2=# SELECT bioassay_id, count(*) from mba_data_base where
> bioassay_id = 5153 group by bioassay_id;
> bioassay_id | count
> -------------+-------
> 5153 | 20000
> 9712 | 120
That's pretty interesting :-(. What PG version is this? Is there an
index on bioassay_id, and if so is the query using it? REINDEXing
the index might fix it.
regards, tom lane