On tis, 2010-02-23 at 16:54 -0500, Jaime Casanova wrote: > On Tue, Feb 23, 2010 at 2:02 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > > > > There may be some value in inventing a "has no side effects" marker, but > > that should not be confused with IMMUTABLE/STABLE. > > > > a READONLY function?
SQL standard: <SQL-data access indication> ::= NO SQL | CONTAINS SQL | READS SQL DATA | MODIFIES SQL DATA Notice also that this is separate from <deterministic characteristic> ::= DETERMINISTIC | NOT DETERMINISTIC which is the SQL standard's variant of volatility. So someone has already had the idea that these two should exist separately. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
