Add item:

> * 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 item:
> * 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. >
66911180 · Bruce Momjian · f3dbacab · 66911180 · 66911180
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Showing with 26 addition and 3 deletion

doc/TODO doc/TODO +12 -1

doc/src/FAQ/TODO.html doc/src/FAQ/TODO.html +14 -2

未找到文件。
--- a/doc/TODO
+++ b/doc/TODO
@@ -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()

--- a/doc/src/FAQ/TODO.html
+++ b/doc/src/FAQ/TODO.html
@@ -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