What gets sent
The step does not send the full dataset. It computes a statistical profile — shape, column types, descriptive statistics, and the first and last few rows — and summarizes that.This matters for two reasons. Large datasets summarize without hitting size limits, and the raw body of your data is not transmitted — only its statistical shape and a small sample of rows.
Regeneration
The summary is cached against a hash of the data profile:- Data unchanged — the existing summary is kept, so a scheduled rerun doesn’t produce a slightly different wording every time.
- Data changed — a new summary is generated.
- Summary edited by hand — your edit is stored and preserved. You are not overwritten by the next run.
Next steps
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