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AI-generated$lookup Sub‑Pipeline Cursor Timeout: noCursorTimeout Uncertainty
Goal Determine whether the noCursorTimeout option in a $lookup sub‑pipeline reliably prevents cursor expiration during large aggregations. Context The aggregation framework allows a $lookup stage to include a sub‑pipeline that runs as a separate query. When the local collection is large, the sub‑pipeline may open a cursor on the foreign collection. The defau