HPCC-10655 DISTRIBUTION may core on eclagent if input record is small

Using the wrong rowAllocator to create distribution accumulator

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-10580 Implement DISTRIBUTION in roxie

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-10660 : Improve efficiency of subscription session remove

Convert linear lookup to hash table lookup

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #5282 from jakesmith/hpcc-10660

HPCC-10660 : Improve efficiency of subscription session remove

Reviewed-By: Gavin Halliday <gavin.halliday@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #5275 from richardkchapman/roxie-distribution

Roxie distribution

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>
Community Edition 4.2.2-rc7 Release Candidate 7

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
Merge remote-tracking branch 'origin/candidate-4.2.2' into closedown-4.2.x

Conflicts:
	version.cmake

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
Merge remote-tracking branch 'origin/closedown-4.2.x'

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>