datachain icon indicating copy to clipboard operation
datachain copied to clipboard
verified publisher icon iterative

map/gen/agg: overwrite columns

Open dmpetrov opened this issue 1 year ago • 1 comments

Similar to #336 but for the map/gen/agg

dmpetrov avatar Aug 21 '24 23:08 dmpetrov

In the case of .map(), being able to replace a compound signal (i.e a column whose type is a DataModel) with another requires us to be able to tell the DatasetQuery layer to replace some arbitrary set of columns with another. Maybe we can add that logic to DatasetQuery.add_signal() but I wonder if it wouldn't be easier to move some of the UDF table logic to DataChain.

rlamy avatar Sep 18 '24 14:09 rlamy