In v6.5.3, if I do:
BEGIN;
SELECT * FROM <table> WHERE <datefield> < now();
DELETE FROM <table> WHERE <datafield> < now();
END;
and, between the SELECT/DELETE, someone inserts data into the table that
matches the WHERE clause, will the DELETE pick that up also?
I know its an odd question, but if I have any faint understanding of MVCC,
it won't, because when I issue the BEGIN/SELECT, it will "timestamp" my
transaction and only affect those tuples that were in existence when I
started ...
... but I want to confirm :)
Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy
Systems Administrator @ hub.org
primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org
