Composite Column Slice query, wildcard first component?

[Mike Hugo <mi...@piragua.com>]

Hello,

Given a row like this

"key1" => (A:A:C), (A:A:B), (B:A:C), (B:C:D)

Is there a way to create a slice query that returns all columns where the
_second_ component is A?  That is, I would like to get back the following
columns by asking for columns where component[0] = * and component[1] = A

(A:A:C), (A:A:B), (B:A:C)

I could do some iteration and figure this out in more of a brute force
manner, I'm just curious if there's anything built in that might be more
efficient

Thanks!

Mike

Re: Composite Column Slice query, wildcard first component?

[aaron morton <aa...@thelastpickle.com>]

> Is there a way to create a slice query that returns all columns where the _second_ component is A?
No. 
You can only get a contiguous slice of columns. 

Cheers


-----------------
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com

On 16/08/2012, at 7:21 AM, Mike Hugo <mi...@piragua.com> wrote:

> Hello,
> 
> Given a row like this
> 
> "key1" => (A:A:C), (A:A:B), (B:A:C), (B:C:D)
> 
> Is there a way to create a slice query that returns all columns where the _second_ component is A?  That is, I would like to get back the following columns by asking for columns where component[0] = * and component[1] = A
> 
> (A:A:C), (A:A:B), (B:A:C)
> 
> I could do some iteration and figure this out in more of a brute force manner, I'm just curious if there's anything built in that might be more efficient
> 
> Thanks!
> 
> Mike