<!-- $PostgreSQL: pgsql/doc/src/sgml/release-9.0.sgml,v 2.56 2010/09/15 17:45:57 tgl Exp $ -->

<listitem>

<para>

PL/pgSQL now treats selection into composite fields more consistently

(Tom Lane)

</para>

<para>

Formerly, a statement like

<literal>SELECT ... INTO <replaceable>rec</>.<replaceable>fld</> FROM ...</literal>

was treated as a scalar assignment even if the record field

<replaceable>fld</> was of composite type. Now it is treated as a

record assignment, the same as when the <literal>INTO</> target is a

regular variable of composite type. So the values to be assigned to the

field's subfields should be written as separate columns of the

<command>SELECT</> list, not as a <literal>ROW(...)</> construct as in

previous versions.

</para>

<para>

If you need to do this in a way that will work in both 9.0 and previous

releases, you can write something like

<literal><replaceable>rec</>.<replaceable>fld</> := ROW(...) FROM ...</literal>.

</para>

</listitem>