From: | John R Pierce <pierce(at)hogranch(dot)com> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Taking lot time |
Date: | 2015-11-03 23:15:05 |
Message-ID: | 56393FF9.9050205@hogranch.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
On 11/3/2015 6:42 AM, Ramesh T wrote:
> I have a Query it taking a lot of time to fetch results
> so,explain query gave
>
> "Hash Join (cost=55078.00..202405.95 rows=728275 width=418)"
> " Hash Cond: (itd.tran_id = iad._adj__id)"
> " -> Seq Scan on inv_detail itd (cost=0.00..40784.18 rows=731029
> width=95)"
> " Filter: (event_type = ANY ('{21,22,3,5}'::integer[]))"
> " -> Hash (cost=20590.78..20590.78 rows=610978 width=331)"
> " -> Seq Scan on inv_adj iad (cost=0.00..20590.78
> rows=610978 width=331)"
>
> Can you Please let me know wt happen in query..?wt should i do..
assuming those estimates are correct, it appears to be doing a
sequential scan of 610000 rows 731000 times.
--
john r pierce, recycling bits in santa cruz
From | Date | Subject | |
---|---|---|---|
Next Message | Leonardo M. Ramé | 2015-11-03 23:55:01 | MinGW-W64 compile error |
Previous Message | Melvin Davidson | 2015-11-03 23:05:22 | Re: Taking lot time |