On Oct 20, 2009, at 1:54 PM, Steve Harris wrote:

> GROUP_CONCAT() is an aggregate function that takes an aggregated  
> variable, and returns a string - I guess a plain literal in RDF terms.
> As Andy said on the call, if you want the output to be machine  
> readable (e.g. to treat it as an array on the client side) you may  
> need to escape the values passed to GROUP_CONCAT.

I assume this means you could use an expression instead of just "an  
aggregated variable"?


Received on Tuesday, 20 October 2009 18:15:46 UTC