Please, if someone recalls a link, book, piece of code or anything with info about this technique for PL/PgSQL (8.1), please let us know. We've been searching into google, groups.google, http://archives.postgresql.org and http://www.postgresql.org/docs/8.1/interactive with no results. Most of the answers are related to unclosed cursors for the "ERROR: cursor ... already in use" message.
Here's the sample code for this issue (i.e. error because cursor already defined in recursive PL/PgSQL function) at: http://www.croata.cl/cur.sql
Don Croata <el.croata@gmail.com> writes: > It's a function who has a cursor and calls itself, but the problem raises > after the first recursion, when PgSQL complains:
> ERROR: cursor "cur" already in use
> Are the cursors kept globally? or cached like TEMP TABLE?
Cursor names are global within a particular session.
IIRC there is a syntax for opening a cursor without specifying a name, in which case plpgsql will pick one that's not in use. This is probably what you want to use.
