At 09:15 AM 20/10/2003 +0200, you wrote:

> From another mailing list :
>
>"It can. Ask on the firebird-support list about indexes of low selectivity
>and other issues relating to your database design."
>
>This is something which I have found to be quite badly documented, and it
>has taken me a long time to understand how indices etc work. I still don't
>understand query plans ...
>
>Could some kind soul either post an article explaining indexes,
>selectivity, primary keys, etc., not only for all the newbies, but also for
>those of us to whom this is important? It is an issue that I have observed
>many people struggle with.

It's been done a gazillion times in nearly as many question contexts...so ---

>And as another suggestion, could a chapter on the subject be added to the
>documentation?

(I presume you are talking about the docs project.) I'll answer a
suggestion with another suggestion: now that the archive of this list is
available in keyword-searchable form at www.ibphoenix.com, how about
yourself taking on the job to "add this chapter"? You won't be short of
material...

heLen