paul-rogers commented on issue #1870: DRILL-7359: Add support for DICT type in RowSet Framework URL: https://github.com/apache/drill/pull/1870#issuecomment-560498165 @arina-ielchiieva, @KazydubB, it turns out that `ProjectionType` does support `DICT`. This is a subtle topic. The projection type encodes information we can glean from the `SELECT` list, as encoded in the `SchemaPath`: `a`, `a[3]`, `a.b`. As a result, `DICT` is already covered: a reference will be either to the whole dict: `d`, or to a member: `d.m`. We would change the `ProjectionType` only if we enhance the `SchemaPath` to, say, allow Python-like syntax: `d[`foo`]. Did we make any such changes?
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