Re: Performance and doing USENET style threaded messages

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Lincoln Yeoh <lyeoh(at)pop(dot)jaring(dot)my>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Performance and doing USENET style threaded messages
Date: 2000-12-23 17:13:31
Message-ID: 24890.977591611@sss.pgh.pa.us
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Lincoln Yeoh <lyeoh(at)pop(dot)jaring(dot)my> writes:
> What is the recommended max indexable text length in Postgresql 7.0?

btree indexes have a hard limit at 1/3rd of a block --- it works out
to be exactly 2700 bytes for 8K blocks. Not sure whether performance
drops off before that.

regards, tom lane

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