From: Kelly Burkhart <kelly@tradebotsystems.com>
To: Merlin Moncure <merlin.moncure@rcsonline.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: 8.x index insert performance
Date: Mon, 31 Oct 2005 11:51:46 -0600
Message-ID: <1130781106.7026.46.camel@krb06.tradebot.com> (raw)
In-Reply-To: <6EE64EF3AB31D5448D0007DD34EEB3417DD725@Herge.rcsinc.local>
References: <6EE64EF3AB31D5448D0007DD34EEB3417DD725@Herge.rcsinc.local>
On Mon, 2005-10-31 at 12:32 -0500, Merlin Moncure wrote:
> well, can you defer index generation until after loading the set (or use
> COPY?)
I cannot defer index generation.
We are using the copy API. Copying 10000 rows in a batch.
>
> if that index is causing the problem, you may want to consider setting
> up partial index to exclude null values.
This is a single column index. I assumed that null column values were
not indexed. Is my assumption incorrect?
-K
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To: pgsql-performance@postgresql.org
Cc: kelly@tradebotsystems.com, merlin.moncure@rcsonline.com
Subject: Re: 8.x index insert performance
In-Reply-To: <1130781106.7026.46.camel@krb06.tradebot.com>
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