hpcc-systems/HPCC-Platform — pull request #2022 by ghalliday (2012-04-02 11:39:09+00:00)
Title: Mark left dataset of join sorted even if global

Previously the function to indicate that the left hand side of a join
was sorted was never set for a global join. However thor does correctly
support it if the dataset is globally sorted.
Also add flags to indicate if left/right are locally sorted to
potentially avoid some work in the sorting.

Signed-off-by: Gavin Halliday