Re: planner row-estimates for tsvector seems horribly wrong

On 24/10/10 14:44, Sushant Sinha wrote:
> I am using gin index on a tsvector and doing basic search. I see the
> row-estimate of the planner to be horribly wrong. It is returning
> row-estimate as 4843 for all queries whether it matches zero rows, a
> medium number of rows (88,000) or a large number of rows (726,000).
> 
> The table has roughly a million docs.
> 
> I see a similar problem reported here but thought it was fixed in 9.0
> which I am running. 

Hi,

what's your default statistics target? Could you attach the output of

select * from pg_stats where tablename = '<the-tablename>';

and

select typanalyze from pg_type where typname = 'tsvector';

Thanks,
Jan