On 2018-Nov-13, PG Bug reporting form wrote:
> 3. Insert a new record:
> > INSERT INTO "public"."schedule" ("id", "week_day", "minute", "hour")
> VALUES (DEFAULT, 'NULL', DEFAULT, DEFAULT);
This is not a NULL value -- it's a string that says NULL. Try with
INSERT INTO public.schedule (id, week_day, minute, hour)
VALUES (DEFAULT, NULL, DEFAULT, DEFAULT);
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Álvaro Herrera https://www.2ndQuadrant.com/
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