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help / color / mirror / Atom feedFrom: jinser <[email protected]>
To: [email protected]
Subject: Is `DATE` a function?
Date: Sat, 7 Oct 2023 21:01:59 +0800
Message-ID: <CAK3STzGm-8_5yvyWm_SJALo1Wb1i3cMJrBj8=WPmVyxHdhmYrg@mail.gmail.com> (raw)
Hello, Friends,
Use it like a normal function:
playground=# SELECT DATE();
ERROR: function date() does not exist
LINE 1: SELECT DATE();
^
HINT: No function matches the given name and argument types. You
might need to add explicit type casts.
playground=# SELECT DATE('2022-01-13');
date
------------
2022-01-13
(1 row)
Another reason I think this is a function is that other types don't
seem to have the same behavior:
playground=# SELECT integer('123');
ERROR: syntax error at or near "("
LINE 1: SELECT integer('123');
^
The Table 9.33. Date/Time Functions in the documentation
(https://www.postgresql.org/docs/16/functions-datetime.html#FUNCTIONS-DATETIME-TABLE)
doesn't mention this...
If I missed it, where should I find the description? Or maybe it
actually should be in this table?
Thanks in advance.
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