TWIMC,
In the documentation for
EXTRACT<http://www.postgresql.org/docs/9.5/interactive/functions-datetime.html#FUNCTIONS-DATETIME-EXTRACT>,
the example for “century" is as follows:
SELECT EXTRACT(CENTURY FROM TIMESTAMP '2000-12-16 12:21:13');
Result: 20
SELECT EXTRACT(CENTURY FROM TIMESTAMP '2001-02-16 20:38:40');
Result: 21
I believe the result for the second SELECT is incorrect. I believe it should be:
SELECT EXTRACT(CENTURY FROM TIMESTAMP '2001-02-16 20:38:40');
Result: 20
Alternatively, you could change the example to:
SELECT EXTRACT(CENTURY FROM TIMESTAMP '2100-02-16 20:38:40');
Result: 21
If I have missed some point about how this should work, then please ignore this
e-mail.
Thanks,
Mark Clark
[email protected]