Tom Lane wrote:
What I think we'd need to have a complete solution is

convert(text, name) returns bytea
        -- convert from DB encoding to arbitrary encoding

convert(bytea, name, name) returns bytea
        -- convert between any two encodings

convert(bytea, name) returns text
        -- convert from arbitrary encoding to DB encoding

The second and third would need to do a verify step before
converting, of course.

Is there any reason these functions shouldn't be marked immutable? Also, I'm wondering if we should give them disambiguating names, rather than call them all convert.



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