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mutate: overwrite columns #336

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dmpetrov opened this issue Aug 21, 2024 · 0 comments

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dmpetrov commented Aug 21, 2024

#306 is a workaround that throws an exception. But we need to implement this functionality with a potential schema change.

This command should change my_dist to another value with a new type (int --> float):

dc.select("file", "my_dist").mutate(my_dist=dc.column("my_dist") * 2* 3.14)

dmpetrov added the priority-p2 label

This was referenced Aug 21, 2024

map/gen/agg: overwrite columns #337

Open

Need resolve_files() method #301

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skshetry self-assigned this

skshetry removed their assignment

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