Open a sort controller for a sort previously created in this transaction. Sort controllers are used to insert rows into the sort.
There may (in the future) be multiple sort inserters for a given sort, the idea being that the various threads of a parallel query plan can all insert into the sort. For now, however, only a single sort controller per sort is supported.
@param id The identifier of the sort to open, as returned fromcreateSort.
@return A sort controller to use for inserting.
@exception StandardException From a lower-level exception.