Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1881#issuecomment-210007776
> There is nothing more permanent than than a temporary solution ;-)
Please correct me, if I got something wrong.
This change adds support for `DECIMAL` literals. So we might have row
fields of `DECIMAL` type and might compute incorrect results until we add
proper support for `DECIMAL`.
It would be nice to support `DECIMAL` but I don't think it is more
important than result correctness. Depending on the support Calcite (or other
libraries) provide, adding proper `DECIMAL` support might be a complex task and
might take some time.
Is there an urgent need to support `DECIMAL`?
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