Only downstream filters are supported currently, i.e. no result
set filtering can be done.
A crude QLA (Query Log All) filter is included as a test harness only
query_classifier.cc use of uninitialized value in skygw_stmt_causes_implicit_commit
config.c crashed if module load failed, use of unitialized value
load_utils.c pretty-printed error
service.c use of uninitialized value in service_add_qualified_param
modules.h function prototype
readwritesplit.c memory leaks
