Comments (3)
We can consider adding a new compare
method that will allow us to compare two dataframes flexibly
Inspired by https://capitalone.github.io/datacompy/spark_usage.html
from dataframe.
Hi!
We don't have such functionality at the moment, but it might be a handy addition.
Tracking additions, deletions, and modifications, similar to how git would do it, requires a special algorithm. I suppose Myer's Differencing Algorithm could help.
I just tried this algorithm via https://github.com/andrewbailey/Difference on two dataFrames (as List<DataRow<*>>
) which correctly provides the remove/move/add operations that likely occurred between the two dataframes.
We could wrap a library like that in the future to introduce this behavior to DataFrame natively, but in the meantime, you could try that library as well :)
from dataframe.
Thanks for your comments and adding in Backlog.
from dataframe.
Related Issues (20)
- Remove old linter information from website
- ☂ Provide KDocs for public API: Continued
- Add KDocs for `move`
- Add KDocs for `flatten`
- Add KDocs for `gather`
- Add KDocs for `add`
- Add KDocs for `distinct`/`distinctBy`
- Add KDocs for `remove`
- Add KDocs for `group`/`ungroup`
- Add KDocs for `groupBy`/`pivot`
- DataFrame.describe() Sortable by Type HOT 4
- Allow `readCSV` to read a folder of CSVs HOT 1
- ☂ CSV rework
- Gradle plugin can generate invalid interfaces
- Offer an argument for `writeExcel()` to remove the limitation of cell's text max length HOT 6
- Reading empty CSV bug HOT 1
- KSP generated code doesn't work with custom source sets
- Adding a tiny README file for each module
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from dataframe.