The documentation says (also in v8.5) "These symbols refer to values supplied in the USING clause".
"values"and not "variable name or reference". This leads to the useful feature mentioned a line later in the same page.
Once you have a value replaced you can avoid the restrictions you now mention on v8.5.
What's the right place to submit proposals?
Il giorno 14 gen, 2010 7:42 m., "Tom Lane" <tgl@sss.pgh.pa.us> ha scritto:
Scott Mead <scott.lists@enterprisedb.com> writes: > Well it is in 8.5 Devel, so it could have bee...The particular paragraph mentioned was committed here
http://archives.postgresql.org/pgsql-committers/2009-11/msg00094.php
but as you note it was just a relocation of a comment that appeared
elsewhere for at least two years before that (and even then, it was
just documenting behavior that had existed since day one).
regards, tom lane