Use hash as cache key if too long.

Misc fix.

1. stricter check to prohibit invalidate query with pointer field args.
2. fix missing ':' for single param query invalidation.

v2.0.2

fix: wpgx telemetry label use unique name

v2.0.1

fix: dumper will not try to sort by non-orderable columns like JSON

v2.0.0

update wpgx version