database/postgres
database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-04-25 21:42:33 +03:00
Code

Add idea:

Browse Source 
<   cmin/cmax pair and is stored in local memory.
>   cmin/cmax pair and is stored in local memory.  Another idea is to
>   store both cmin and cmax only in local memory.
This commit is contained in:
Bruce Momjian 2005-09-03 00:41:30 +00:00
parent 11b5c554c2
commit b72fe49b9c
2 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
doc/TODO
View File

@ -2,7 +2,7 @@
PostgreSQL TODO List PostgreSQL TODO List
==================== ====================
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
Last updated: Fri Sep 2 17:23:03 EDT 2005 Last updated: Fri Sep 2 20:41:29 EDT 2005
The most recent version of this document can be viewed at The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html. http://www.postgresql.org/docs/faqs.TODO.html.
@ -986,7 +986,8 @@ Miscellaneous Performance
proper visibility of the row's cmin, for example, for cursors. proper visibility of the row's cmin, for example, for cursors.
One possible solution is to create a phantom cid which represents a One possible solution is to create a phantom cid which represents a
cmin/cmax pair and is stored in local memory. cmin/cmax pair and is stored in local memory. Another idea is to
store both cmin and cmax only in local memory.
* Use a phantom command counter for nested subtransactions to reduce * Use a phantom command counter for nested subtransactions to reduce
per-tuple overhead per-tuple overhead

5
doc/src/FAQ/TODO.html
View File

@ -8,7 +8,7 @@
<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF"> <body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
<h1><a name="section_1">PostgreSQL TODO List</a></h1> <h1><a name="section_1">PostgreSQL TODO List</a></h1>
<p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/> <p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/>
Last updated: Fri Sep 2 17:23:03 EDT 2005 Last updated: Fri Sep 2 20:41:29 EDT 2005
</p> </p>
<p>The most recent version of this document can be viewed at<br/> <p>The most recent version of this document can be viewed at<br/>
<a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>. <a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>.
@ -891,7 +891,8 @@ first.
proper visibility of the row's cmin, for example, for cursors. proper visibility of the row's cmin, for example, for cursors.
</p> </p>
<p> One possible solution is to create a phantom cid which represents a <p> One possible solution is to create a phantom cid which represents a
cmin/cmax pair and is stored in local memory. cmin/cmax pair and is stored in local memory. Another idea is to
store both cmin and cmax only in local memory.
</p> </p>
</li><li>Use a phantom command counter for nested subtransactions to reduce </li><li>Use a phantom command counter for nested subtransactions to reduce
per-tuple overhead per-tuple overhead