Add projection for virtual table SQL functions like read_parquet() #5280
Description
Is your feature request related to a problem?
We don't support projection for virtual table functions like read_parquet(), so if you have, say, 1000 columns in your parquet, but you query only a single column, we'll end up decoding all 1000 columns. This is sub-optimal and should be improved.
Describe the solution you'd like.
No response
Describe alternatives you've considered.
No response
Full Name:
Andrei Pechkurov
Affiliation:
QuestDB
Additional context
No response