Re: index on custom function; explain - Mailing list pgsql-performance

From Yann Michel
Subject Re: index on custom function; explain
Date
Msg-id 20051006081919.GA17081@zoom.spline.inf.fu-berlin.de
Whole thread Raw
In response to index on custom function; explain  ("jan.aerts@bbsrc.ac.uk" <jan.aerts@gmail.com>)
Responses Index + mismatching datatypes [WAS: index on custom function; explain]  (Enrico Weigelt <weigelt@metux.de>)
List pgsql-performance
Hi,

On Mon, Oct 03, 2005 at 08:14:11AM -0700, jan.aerts@bbsrc.ac.uk wrote:
> So my questions are:
> * Does anyone have any idea how I can integrate a function that lists
> all aliases for a given name into such a mapping query?

what version are you using?

TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not
       match

Cheers,
Yann

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