The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/9.1/static/functions-datetime.html
Description:
Per /docs/current/static/functions-datetime.html (and earlier), epoch is
defined as:
"For date and timestamp values, the number of seconds since 1970-01-01
00:00:00 UTC".
The correct value to obtain 0 is as follows:
SELECT EXTRACT(EPOCH FROM TIMESTAMP WITH TIME ZONE '1970-01-01 8:00:00.0')
