On 05/23/2018 10:00 AM, David G. Johnston wrote:
On Wednesday, May 23, 2018, tango ward <[email protected]
<mailto:[email protected]>> wrote:
I just want to ask if it's possible to insert data if it's not
existing yet.
This seems more like a philosophical question than a technical one...
but the answer is yes:
CREATE TABLE test_t (a varchar, b varchar, c integer);
INSERT INTO test_t
SELECT '1', '2', 3 WHERE false; --where false causes the data to
effectively "not exist"
As for ON CONFLICT: conflicts can only happen between things that exist.
Well that made my day:)
David J.
--
Adrian Klaver
[email protected]
