Conversion breakdowns drop every later day once the series limit is reached

Aperta
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Dal 7/11/2026.

  • #658 di @officialasishkumar — aperta

Valutazione

Difficoltà
2/5
Tempo stimato
1-3 ore
Idoneità per principianti
35/100
Tipo di issue
Bug
Chiarezza
Specificata chiaramente
Stato di attività
Ferma
Stack tecnologico
typescript
Ambito
data-visualization

Direzione di ricerca

Start with packages/core/src/modules/chart/conversion.service.ts and inspect toSeries where the limit is checked before the breakdown key. Compare its behavior with funnel.service.ts, whose equivalent fix is described in the issue. Done means the limit caps the number of breakdown series while every kept series retains all days in the range; pull request #658 is already open.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

Description

A conversion chart with a breakdown loses data once the number of breakdown values reaches the report's limit. Every row after that point is dropped, including the later days of the series that were kept. Those lines stop early, and if the limit is reached on the first day, each series shows only that day. The summary and table built from the series are wrong in the same way.

The report editor sends limit: 500, so this happens with any breakdown that has at least 500 values over the range (paths, referrers, many custom properties). A smaller limit makes it happen sooner.

Root cause

toSeries in packages/core/src/modules/chart/conversion.service.ts checks the limit before it looks at the row's breakdown key:

if (limit && Object.keys(acc).length >= limit) {
  return acc;
}

The query orders rows by event_day, then by breakdown, so once the limit is reached, every later row is discarded, including rows of series that were already accepted.

The funnel's toSeries (funnel.service.ts) had the same bug and was fixed by checking the limit only for new keys. The conversion version never got that fix.

Expected behavior

The limit caps how many breakdown series come back. The series that are kept still have every day in the range.

Lingua principale
TypeScript
Stelle
7.3k
Fork
539
Merge medio
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PR unite (30g)
80

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