Log Message:
-----------
Add sanity check to ensure delimiter and quote are different in CSV mode
Modified Files:
--------------
pgsql/src/backend/commands:
copy.c (r1.293 -> r1.294)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/copy.c?r1=1.293&r2=1.294)