hpcc-systems/HPCC-Platform — pull request #3963 by richardkchapman (2013-02-13 15:12:37+00:00)
Title: HPCC-8744 Optimize dictionary lookups of single fixed length fields

Use helper classes to support lookup of individual fields in dictionaries,
using the value IN dict syntax.

Work in progress - the default case when not optimized needs more work.

Signed-off-by: Richard Chapman