change creds to pjpersist
revert
0a9b18f Fix $in operator
b56cf7b Make the $in and $nin operators work correctly.

the -> operator always returns JSONB, you better don't compare it with anything else than JSONB

the ?| operator is "Do any of these key/element strings exist?" breaks badly if the second args are not strings.
IS NULL does not really work with JSONB