sica2007=# SELECT AVG(age) FROM
sica2007-# (SELECT age(rfc2date) FROM
sica2007(# (SELECT rfc2date(rfc) FROM datos_per WHERE active AND acad)
sica2007(# AS foo)
sica2007-# AS bar;
avg
-----------------------------------------
47 years 6 mons 29 days 26:50:50.847458
(1 row)
Da gusto saber que uno todavía está jóven.
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