Tom Lane <tgl@xxxxxxxxxxxxx> wrote: > Andreas Kretschmer <akretschmer@xxxxxxxxxxxxx> writes: > > '3 years' != '2 years 11 mons 30 days', but i got 0 rows, why? > > Well, actually: > > regression=# select '3 years'::interval = '2 years 11 mons 30 days'::interval; > ?column? > ---------- > t > (1 row) > > IIRC, interval comparison operators normalize the two values assuming that > 1 month = 30 days. Which is kind of arbitrary, but without some such > assumption there's no way to have a scalar ordering of intervals at all. Thanks, okay, make sense. I'm using extract() to extract and compare the YEAR-field to spot a birthday from the age() ;-) Andreas -- Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect. (Linus Torvalds) "If I was god, I would recompile penguin with --enable-fly." (unknown) Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889° -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
