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Update TODO items:

< 	o Store disk pages with no alignment/padding?
>
> 	  This involves having the user-specified order of columns
> 	  be different from the physical order.  SELECT * would
> 	  need to reorder the physical values to match the
> 	  user-specified ordering.
>
> 	o Store disk pages with no alignment/padding?
>
> 	  This necessitates adding CPU-required padding when moving
> 	  rows from disk to memory.
>
>
> 	  http://archives.postgresql.org/pgsql-hackers/2006-09/msg00848.php
>
This commit is contained in:
Bruce Momjian
2006-09-14 17:11:51 +00:00
parent 9256b84e61
commit 7f75537cd7
2 changed files with 28 additions and 5 deletions

View File

@@ -2,7 +2,7 @@
PostgreSQL TODO List
====================
Current maintainer: Bruce Momjian (bruce@momjian.us)
Last updated: Tue Sep 12 17:02:34 EDT 2006
Last updated: Thu Sep 14 13:11:44 EDT 2006
The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html.
@@ -1350,9 +1350,22 @@ Miscellaneous Performance
* Consider ways of storing rows more compactly on disk
o Store disk pages with no alignment/padding?
o Reorder physical storage order to reduce padding?
This involves having the user-specified order of columns
be different from the physical order. SELECT * would
need to reorder the physical values to match the
user-specified ordering.
o Store disk pages with no alignment/padding?
This necessitates adding CPU-required padding when moving
rows from disk to memory.
o Support a smaller header for short variable-length fields?
http://archives.postgresql.org/pgsql-hackers/2006-09/msg00848.php
o Reduce the row header size?