Hi, I am having some difficulty with column specifiers and, surprisingly, didn't see any previous mention of it in the mailing list yet.
On p.98 and 99 of the spec, it discusses column specifiers (which filter results showing only the columns the user is interested in) and states: " Support is only required for single-value, non-residual properties that are declared in or inherited by the node types specified in the type constraint. It is optional to allow specification of residual properties as columns. " My understanding of this is that column specifiers can only be used for properties of a node that have been declared using custom node types? Is that correct? If so, I'm curious about why of this choice? Is it somehow performance/indexing related ? Cheers, Mark
