Github user JamesRTaylor commented on the pull request:
https://github.com/apache/incubator-phoenix/pull/25#issuecomment-41590564
Thanks, @tzolkincz - these built-ins are definitely generally useful. It'd
be good to try to fit them into something similar to what other databases do.
For example, Postgres has [encode/decode
built-ins](http://www.postgresql.org/docs/9.1/static/functions-string.html).
Perhaps this could be the start of a DECODE built-in where the format is 'HEX'
and that would be the only format we'd support. That way, when a new format is
needed, folks can just add a new format option. What do you think?
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