Re: How to split an array into columns

a schrieb am 24.08.2018 um 11:01:
> Say if I have an float8 array:
> 
> id| data
> --|---------------
> a | {1,2}
> b | {2,4}
> 
> If I could using query to make it looks like this:
> 
> id| data[1] | data[2]
> --|----------|-----------
> a |      1      |     2
> b |      2      |     4
> 
> Since I would have around 200,000 rows, I would prefer it having
> enough capacity to carry out the calculation such as sum().

Maybe I am missing something, but: 

   select id, data[1], data[2]
   from the_table;

will work just fine.