Re: >= forces row compare and not index elements compare when possible

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To: "Bernard Dhooghe" <dhoogheb@xxxxxxxxx>
Subject: Re: >= forces row compare and not index elements compare when possible
From: Tom Lane <tgl@xxxxxxxxxxxxx>
Date: Sat, 14 Jan 2006 13:10:28 -0500
Cc: pgsql-performance@xxxxxxxxxxxxxx
Comments: In-reply-to "Bernard Dhooghe" <dhoogheb@xxxxxxxxx> message dated "09 Jan 2006 09:10:02 -0800"
In-reply-to: <1136826602.613297.42010@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
References: <1136826602.613297.42010@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>

"Bernard Dhooghe" <dhoogheb@xxxxxxxxx> writes:
> So >= (or <=) is not optimized against an index where it could be.

Work in progress...

			regards, tom lane

References:
- >= forces row compare and not index elements compare when possible
  - From: Bernard Dhooghe

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