Re: How to return a jsonb list of lists (with integers)
От | Pavel Stehule |
---|---|
Тема | Re: How to return a jsonb list of lists (with integers) |
Дата | |
Msg-id | CAFj8pRBMzZoZUzLE+uQRcVXDZJMQC3jdzhmJX6rr50-5X3O9vw@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: How to return a jsonb list of lists (with integers) (Alexander Farber <alexander.farber@gmail.com>) |
Список | pgsql-general |
st 17. 2. 2021 v 16:02 odesílatel Alexander Farber <alexander.farber@gmail.com> napsal:
I have tried switching to SELECT INTO, but IF FOUND is still always true, which gives me [ null, null, null ] for some users:SELECT JSONB_BUILD_ARRAY(SUM(CASE WHEN (player1 = in_viewer AND state1 = 'won') OR (player2 = in_viewer AND state2 = 'won') THEN 1 ELSE 0 END)::integer,SUM(CASE WHEN (player1 = in_viewer AND state1 = 'lost') OR (player2 = in_viewer AND state2 = 'lost') THEN 1 ELSE 0 END)::integer,SUM(CASE WHEN (player1 = in_viewer AND state1 = 'draw') OR (player2 = in_viewer AND state2 = 'draw') THEN 1 ELSE 0 END)::integer)FROM words_gamesWHERE finished IS NOT NULLAND in_viewer IN (player1, player2)AND in_uid IN (player1, player2)INTO _versus;
It should be true always. The aggregate returns always one row
postgres=# SELECT sum(pocet_muzu) FROM obce WHERE false;
┌─────┐
│ sum │
╞═════╡
│ ∅ │
└─────┘
(1 row)
┌─────┐
│ sum │
╞═════╡
│ ∅ │
└─────┘
(1 row)
Regards
Pavel
IF FOUND THEN -- for some reason this is always trueout_data := JSONB_INSERT(out_data, '{versus}', _versus);END IF;
What works for me is:IF _versus <> '[null,null,null]'::jsonb THENout_data := JSONB_INSERT(out_data, '{versus}', _versus);END IF;
Greetings
Alex
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