Github user ramkrish86 commented on the issue:
https://github.com/apache/flink/pull/3149
Just a general question
`def projectFields(fields: Array[Int]): ProjectableTableSource[T]`
Is it mandatory to only have int[] here. Can we have String[] that allows
to specify specific names? May be even more generic could be to have a
ColumnarTableProjectableSource which allows to specify family to column mapping
some way? Ultimately its the table source that is going to do the mapping and
create the projected table source. So that should be fine?
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