v30-0004-Faster-partition-pruning.patch contains: +create table coll_pruning_multi (a text) partition by range (substr(a, 1) collate "en_GB", substr(a, 1) collate "en_US");
This'll likely work okay on Linux. Other collate tests seem to use COLLATE "POSIX or "C" so that work cross-platform. -- David Rowley http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
