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Fix problems with dropped columns in pltcl triggers, per report from Patrick Samson.

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This commit is contained in:
Tom Lane
2004-01-24 23:06:29 +00:00
parent 0152f14812
commit c8bcd5ca92
2 changed files with 28 additions and 19 deletions
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7
doc/src/sgml/pltcl.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/pltcl.sgml,v 2.28 2003/11/29 19:51:37 pgsql Exp $
$PostgreSQL: pgsql/doc/src/sgml/pltcl.sgml,v 2.29 2004/01/24 23:06:29 tgl Exp $
-->
<chapter id="pltcl">
@ -516,7 +516,10 @@ SELECT 'doesn''t' AS ret
element. So looking up a column name in the list with <application>Tcl</>'s
<function>lsearch</> command returns the element's number starting
with 1 for the first column, the same way the columns are customarily
numbered in <productname>PostgreSQL</productname>.
numbered in <productname>PostgreSQL</productname>. (Empty list
elements also appear in the positions of columns that have been
dropped, so that the attribute numbering is correct for columns
to their right.)
</para>
</listitem>
</varlistentry>