Re: Minor TODO list changes - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Minor TODO list changes
Date
Msg-id 200411041651.iA4GpFR02864@candle.pha.pa.us
Whole thread Raw
In response to Minor TODO list changes  (Simon Riggs <simon@2ndquadrant.com>)
Responses Re: Minor TODO list changes  (Simon Riggs <simon@2ndquadrant.com>)
Re: Minor TODO list changes  (Kenneth Marshall <ktm@it.is.rice.edu>)
List pgsql-hackers
OK, I updated all your items.  I removed fillfactor because I thought I
was the only one who thought it was valuable and as I remember it was
mostly useful for ISAM, which we don't support.  Can you think of a use
for a non-100% fillfactor?

---------------------------------------------------------------------------

Simon Riggs wrote:
> A few minor typos/notes:
> 
> INDEXES
> 
> 1. On 2nd bullet...
> "The main difficulty with this item is the problem of creating an index
> that can spam more than one table."
> 
> should be span, not spam
> 
> 2. On 6th bullet
>   * "Use index to restrict rows returned by multi-key index when used
>     with non-consecutive keys to reduce heap accesses 
> 
> For an index on col1,col2,col3, and a WHERE clause of col1 = 5 and col3
> = 9, spin though the index checking for col1 and col3 matches, rather
> than just col1 "
> 
> This is also known as "skip-scanning", so it would be good to use that
> phrase in the TODO
> 
> 3. Whatever happened to the FILLFACTOR todo item? AFAICS it disappeared
> sometime at the beginning of August, but I'm not sure why?
> 
> REF INTEGRITY
> 
> ...Didn't we just get rid of deferred triggers?? Perhaps I read that
> wrong.
> 
> 
> CACHE
> 
> 1. 1st bullet....prefix it with "Use posix_fadvise() API to let OS know
> how files will be used by PostgreSQL. This would allow, for example,
> a..." (replacing the word "add").
> 
> 
> 
> -- 
> Best Regards, Simon Riggs
> 
> 
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--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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