Re: COPY ... FROM and index usage - Mailing list pgsql-general

From Josh Tolley
Subject Re: COPY ... FROM and index usage
Date
Msg-id e7e0a2570711040559r2cca6654m4139b30e02bc1094@mail.gmail.com
Whole thread Raw
In response to COPY ... FROM and index usage  (Reg Me Please <regmeplease@gmail.com>)
Responses Re: COPY ... FROM and index usage  (Reg Me Please <regmeplease@gmail.com>)
Re: COPY ... FROM and index usage  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-general
On 11/4/07, Reg Me Please <regmeplease@gmail.com> wrote:
> Hi all.
>
> I'd like to know whether the indexes on a table are updated or not during
> a "COPY ... FROM" request.
>
> That is, should I drop all indexes during a "COPY ... FROM" in order to gain
> the maximum speed to load data?
>
> Thanks.

Although questions of "which is faster" often depend very heavily on
the data involved, the database schema, the hardware, etc., typically
people find it best to drop all indexes during a large import and
recreate them afterward.

- Josh/eggyknap

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