Re: decode/encode backslash to base64

ft <ftimmer@ft-c.de> writes:
> here is an example for decode and encode 
> a string with backslash: 'a\'

That is not valid input syntax for bytea.  See

https://www.postgresql.org/docs/current/datatype-binary.html

You've said nothing about what your actual purpose is,
so it's difficult to suggest what you should do differently.

            regards, tom lane