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- Put in safeguard to prevent attempted return of non-data types from
R. Specific example from Hans-Jürgen Schönig was trying to return a closure (function pointer) as pg data type TEXT. This was causing an untrappable long jump within the R interpreter when trying to coerce it to character, resulting in a Postgres crash. At this point only allow return of these non-standard data types when the pg return type is BYTEA. That will allow them to be streamed to pg for storage which is about the only useful thing you could do with them anyway.
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