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Add new SPI_OK_REWRITTEN return code to SPI_execute and friends, for the

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case that the command is rewritten into another type of command. The old
behavior to return the command tag of the last executed command was
pretty surprising. In PL/pgSQL, for example, it meant that if a command
was rewritten to a utility statement, FOUND wasn't set at all.
This commit is contained in:
Heikki Linnakangas
2009-01-21 11:02:40 +00:00
parent 0154345078
commit 94136d5a18
4 changed files with 36 additions and 16 deletions
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12
doc/src/sgml/spi.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/spi.sgml,v 1.63 2009/01/07 13:44:36 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/spi.sgml,v 1.64 2009/01/21 11:02:40 heikki Exp $ -->
<chapter id="spi">
<title>Server Programming Interface</title>
@ -527,6 +527,16 @@ typedef struct
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><symbol>SPI_OK_REWRITTEN</symbol></term>
<listitem>
<para>
if the command was rewritten into another kind of command (e.g.,
<command>UPDATE</command> became an <command>INSERT</command>) by a <link linkend="rules">rule</link>.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>