Re: How to return a jsonb list of lists (with integers)

[Alexander Farber]

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_games
                WHERE finished IS NOT NULL
                AND in_viewer IN (player1, player2)
                AND in_uid IN (player1, player2)
                INTO _versus;

                IF FOUND THEN           -- for some reason this is always
true
                        out_data := JSONB_INSERT(out_data, '{versus}',
_versus);
                END IF;

What works for me is:

                IF _versus <> '[null,null,null]'::jsonb THEN
                        out_data := JSONB_INSERT(out_data, '{versus}',
_versus);
                END IF;

Greetings
Alex