Consider this:
select (array[array[1, 2], array[3, 4]])[i:i]
from generate_subscripts(array[array[1, 2], array[3, 4]], 1) i
which produces:
{{1,2}}
{{3,4}}
I expect and want, from that source:
{1, 2}
{3, 4}
Also: could we _please_ get a version of unnest that doesn’t explode any number of dimensions into 1?
Here’s a solution in pure SQL, for reference:
CREATE OR REPLACE FUNCTION public.pairwise(
cards card[]
)
RETURNS table(c1 card, c2 card)
LANGUAGE sql
AS $function$
with
individual_cards as (
select
*
from
unnest(cards) with ordinality c
)
select
c(c1.suit, c1.rank),
c(c2.suit, c2.rank)
from
individual_cards c1 join
individual_cards c2 on c1.ordinality = c2.ordinality - 1
where
c1.ordinality % 2 = 1
$function$
;
Given that Postgres often (with good cause) touts its type system, it’s a shame that this basic structured type is great in many ways, but seriously flawed in really simple ones.
ul[class*='mb-extra__public-links'], ul[class*='mb-note__public-links'], ul[class*='mb-task__public-links'] { display: none !important; }