Casey Deccio <ca...@deccio.net> writes:
>> On Mar 5, 2019, at 9:15 AM, Vijaykumar Jain <vj...@opentable.com> wrote:
>> Can you run both the queries with
>> “explain analyze select ....” and paste the output.
> dnsviz=> explain analyze select id,name,date from analysis where name = 'foo'
> order by date desc limit 20;
>
> QUERY PLAN
>
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> ----------------------------------
>
>
> Limit (cost=0.57..81.74 rows=20 width=31) (actual time=0.540..0.541 rows=1
> loops=1)
>
> -> Index Scan Backward using analysis_name_date_key on analysis
> (cost=0.57..7760.25 rows=1912 width=31) (actual
> time=0.539..0.540 rows=1 loops=1)
>
>
> Index Cond: ((name)::text = 'foo'::text)
> Planning time: 6.728 ms
> Execution time: 0.587 ms
> (5 rows)
Hm, so possibly corruption in that index? REINDEX might help.
regards, tom lane
