On Sat, Feb 11, 2006 at 07:50:22PM -0500, Tom Lane wrote: > > On Sat, 2006-02-11 at 11:44 -0600, Jim C. Nasby wrote: > >> But speaking of documentation, it doesn't actually say what the default > >> is. Care update that, or should I formally submit a patch? > >> > >>  http://www.postgresql.org/docs/8.1/interactive/sql-declare.html > > Actually, if you submit a patch that says either "SCROLL is the default" > or "NO SCROLL is the default", it will be rejected as incorrect. The > reason is that the default behavior is different from either of these, > as is explained in the NOTES section.
Ok, so *that's* where the bit about the query plan being simple enough. Based on that, ISTM that it should be premissable for us to decide that a cursor requiring a sort isn't "simple enough" to support SCROLL. In any case, here's a patch that makes the non-standard behavior easier for people to find. -- Jim C. Nasby, Sr. Engineering Consultant [EMAIL PROTECTED] Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
Index: doc/src/sgml/ref/declare.sgml =================================================================== RCS file: /projects/cvsroot/pgsql/doc/src/sgml/ref/declare.sgml,v retrieving revision 1.34 diff -u -r1.34 declare.sgml --- doc/src/sgml/ref/declare.sgml 18 Jan 2006 06:49:26 -0000 1.34 +++ doc/src/sgml/ref/declare.sgml 12 Feb 2006 05:21:30 -0000 @@ -129,7 +129,9 @@ execution plan, specifying <literal>SCROLL</literal> may impose a performance penalty on the query's execution time. <literal>NO SCROLL</literal> specifies that the cursor cannot be - used to retrieve rows in a nonsequential fashion. + used to retrieve rows in a nonsequential fashion. The default is to + allow scrolling, but this is not the same as specifying + <literal>SCROLL</literal>. See <xref linkend="notes"> for more details. </para> </listitem> </varlistentry> @@ -198,7 +200,7 @@ </para> </refsect1> - <refsect1> + <refsect1 id="notes"> <title>Notes</title> <para>
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