Null bytes in redis bit strings

[nowwireless-andy]

I use SETBIT https://redis.io/commands/SETBIT to efficiently store second-by-second availability data for many devices. These are ultimately strings from redis's point of view.

I am looking to access this from pg and found this extension. I can access the data but if there is a strings of zeroes in the bitstring such that a null byte is returned, the extension views this as a string terminator and I don't get any further data for that key. I've tried creating the foreign table with a bytea type rather than a text type but this makes no difference. I looked in the options documentation for a binary option but didn't see one.

Am I doing something wrong, or is this not currently supported?

[mkgrgis]

@nowwireless-andy , could you write bytea Redis->PostgreSQL support by SQLite FDW sample according https://doxygen.postgresql.org and add some SQL tests or show your problem in SQL/Redis form?
Also you can write bitstring/varbitstring for PostgreSQL based on other SQLite FDW example of C code.