| From: | Sam Barnett-Cormack <s(dot)barnett-cormack(at)lancaster(dot)ac(dot)uk> |
|---|---|
| To: | Hemapriya <priyam_1121(at)yahoo(dot)com> |
| Cc: | pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: postgres copy command very slow. |
| Date: | 2004-03-27 02:58:24 |
| Message-ID: | Pine.LNX.4.58.0403270257280.15225@short.lancs.ac.uk |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-admin |
On Fri, 26 Mar 2004, Hemapriya wrote:
> Hi,
>
> We have postgresql 7.4.1 running on Mac OS.we are
> doing a conversion from mysql to postgres. I'm
> importing the table dumps using copy command in
> postgres. Copy takes 2 min to import 427938 rows in
> one table and at the same time it takes more than 2
> hrs for 2415768 rows.. no of columns are similar in
> both the tables. i'm not able to figure out why it is
> getting too slower?
Are the field types the same? Indexes on the two tables?
For the best chance of a good diagnosis, please post full details of
both tables - constraints, indexes, and field types at least.
--
Sam Barnett-Cormack
Software Developer | Student of Physics & Maths
UK Mirror Service (http://www.mirror.ac.uk) | Lancaster University
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