On Mon, 10 Sep 2007, Simon Riggs wrote:

It seems possible to write your own functions to support various
possibilities with text search.

One of the more common thoughts is to have a list of words that you
would like to include, i.e. the opposite of a stop word list.

There are clear indications that indexing too many words is a problem
for both GIN and GIST. If people already know what they'll be looking
for and what they will never be looking for, it seems easier to supply
that list up front, rather than hide it behind lots of hand-crafted

Can we include that functionality now?

This could be realized very easyly using dict_strict, which returns
only known words, and mapping contains only this dictionary. So, feel free to write it and submit.

Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: [EMAIL PROTECTED], http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83

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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

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