[IOTDB-661] Keep the alias column in result if it's used in query #1183
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SQL: SELECT speed FROM root.sg.d1; (speed is the alias of s1).
Which returns the result like | Time | root.sg.d1.s1 | now.
We need to support keeping the alias in result if it's used in query, returning the result like
| Time | root.sg.d1.speed |.
This pr supports this function in rawDataQuery and lastQuery.