On 6/24/19 4:46 PM, Alex Magnum wrote:
Yes, they are.
On Tue, Jun 25, 2019 at 4:33 AM Rob Sargent <robjsarg...@gmail.com
<mailto:robjsarg...@gmail.com>> wrote:
On Jun 24, 2019, at 2:31 PM, Alex Magnum <magnum11...@gmail.com
<mailto:magnum11...@gmail.com>> wrote:
Hi,
I have two arrays which I need to combine based on the individual
values;
i could do a coalesce for each field but was wondering if there
is an easier way
array_a{a, null,c, d,null,f,null} primary
array_b{null,2 ,null,4,5 ,6,null} secondary
result {a, 2, c, d,5, f,null)
Any advice would be appreciated
Are the inputs always of fixed dimensions eg. 1 by 7?
create or replace function tt( a1 int[], a2 int[])
returns int[] as $$
declare
aret int[];
asize int;
begin
select array_length(a1,1) into asize;
for i in 1..asize loop
aret[i] = coalesce(a1[i], a2[i]);
end loop;
return aret;
end;
$$ language plpgsql;
select * from tt(array[3,null], array[null,4]);
tt
-------
{3,4}
(1 row)
