hpcc-systems/HPCC-Platform — pull request #1348 by RussWhitehead (2012-01-24 22:24:02+00:00)
Title: WIP: Add spill support to Roxie Sort Activity

Currently Roxie sort activity will error out if the memory limit is
exceeded. This change improves roxie to behave more like Thor and eclagent,
by spilling records to disk during a large sort and reading/merging them
back in as they are consumed.

Signed-off-by: William Whitehead