Abdulrehman-PIAIC80387 commented on issue #42809:
URL: https://github.com/apache/superset/issues/42809#issuecomment-5237309198
Sending PR #42976 for the server-side half of this issue. Adds a
`show_values_as` argument to `pivot()` in
`superset/utils/pandas_postprocessing/pivot.py` that mirrors the client-side
`fractionOf` semantic (including #42810's NaN/zero-denominator guards).
Multi-metric pivots are handled per-metric so metric A's percentages are never
contaminated by metric B's values.
The second half — wiring the pivot chart's `buildQuery.ts` to emit the
postprocessing so CSV/XLSX exports pick it up — is a follow-up because it needs
a design decision on whether to emit the operation always (client must tolerate
a pre-pivoted DataFrame) or only for `result_type in {CSV, XLSX}`. Happy to
fold that into the same PR if you have a preferred shape @rusackas /
@sadpandajoe — asked in the PR body.
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