Re: Doubt about query

On Fri, Jun 5, 2015 at 1:25 PM, Bianca Stephani <bianca(dot)stephani(at)gmail(dot)com>
wrote:

> HI everyone.
>
> I have a table with X columns. And I want to make a select of 5 of the X
> columns in a way that i get all the 5 columns values only in one column
> (like i call everyone "AS bla" and as result, bla is an array of that
> columns), but if i use 5 selects with UNION ALL i just get [{bla => 3},
> {bla => 3}, {bla => 1}, {bla => 5}, {bla => 2} ...] even with a GROUP BY.
> And besides that, using "as bla" is turning my results (3, 1, 5, 2) into
> strings.
>
> What is the best way to collect the value of multiple integer columns as
> one? :|
>
>
​Do you have a particular output column type you'd like the data to be in?​

​SELECT ARRAY[col1, col2, col3, col4, col5]::integer[] FROM tbl

David J.
​