mirror/postgresql
2
0
Fork 0
mirror of https://git.postgresql.org/git/postgresql.git synced 2024-11-27 07:21:09 +08:00
Code Issues Packages Projects Releases Wiki Activity

Add item:

Browse Source 
> * Add NUMERIC division operator that doesn't round?
>
>   Currently NUMERIC _rounds_ the result to the specified precision.
>   This means division can return a result that multiplied by the
>   divisor is greater than the dividend, e.g. this returns a value > 10:
>
>     SELECT (10::numeric(2,0) / 6::numeric(2,0))::numeric(2,0) * 6;
>
>   The positive modulus result returned by NUMERICs might be considered
>   inaccurate, in one sense.
>
This commit is contained in:
Bruce Momjian 2005-06-25 01:32:02 +00:00
parent f3dbacab0c
commit 669111800f
2 changed files with 26 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
doc/TODO
View File

@ -2,7 +2,7 @@
PostgreSQL TODO List
====================
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
Last updated: Fri Jun 24 17:28:23 EDT 2005
Last updated: Fri Jun 24 21:32:02 EDT 2005
The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html.
@ -152,6 +152,17 @@ Data Types
* Remove Money type, add money formatting for decimal type
* Change NUMERIC to enforce the maximum precision, and increase it
* Add NUMERIC division operator that doesn't round?
Currently NUMERIC _rounds_ the result to the specified precision.
This means division can return a result that multiplied by the
divisor is greater than the dividend, e.g. this returns a value > 10:
SELECT (10::numeric(2,0) / 6::numeric(2,0))::numeric(2,0) * 6;
The positive modulus result returned by NUMERICs might be considered
inaccurate, in one sense.
* Add function to return compressed length of TOAST data values
* Allow INET subnet tests using non-constants to be indexed
* Add transaction_timestamp(), statement_timestamp(), clock_timestamp()

16
doc/src/FAQ/TODO.html
View File

@ -8,7 +8,7 @@
<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
<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/>
Last updated: Fri Jun 24 17:28:23 EDT 2005
Last updated: Fri Jun 24 21:32:02 EDT 2005
</p>
<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>.
@ -142,7 +142,19 @@ first.
<ul>
<li>Remove Money type, add money formatting for decimal type
</li><li>Change NUMERIC to enforce the maximum precision, and increase it
</li><li>Add function to return compressed length of TOAST data values
</li><li>Add NUMERIC division operator that doesn't round?
<p> Currently NUMERIC _rounds_ the result to the specified precision.
This means division can return a result that multiplied by the
divisor is greater than the dividend, e.g. this returns a value &gt; 10:
</p>
</li></ul>
<p> SELECT (10::numeric(2,0) / 6::numeric(2,0))::numeric(2,0) * 6;
</p>
<p> The positive modulus result returned by NUMERICs might be considered<br/>
inaccurate, in one sense.
</p>
<ul>
<li>Add function to return compressed length of TOAST data values
</li><li>Allow INET subnet tests using non-constants to be indexed
</li><li>Add transaction_timestamp(), statement_timestamp(), clock_timestamp()
functionality