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Index run_hash so admin hide/delete/search by hash is instant #579

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Merged
ptrlrd merged 1 commit into from
Jul 10, 2026
Merged

Index run_hash so admin hide/delete/search by hash is instant #579

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6 changes: 6 additions & 0 deletions backend/app/services/runs_db_mongo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -165,6 +165,12 @@ def _ensure_indexes(coll) -> None:
# /api/runs/list hot shapes: filter+sort compounds so Mongo never
# in-memory-sorts a 40k-doc subset, plus seed for anchored prefix search.
coll.create_index([("seed", ASCENDING)])
# Admin hide/delete/search look runs up by hash. _id IS the hash for
# single-player runs; multiplayer runs carry a shared run_hash field. Index
# it (sparse — only MP docs have the field) so the admin lookup
# $or: [{_id}, {run_hash}] is an index union instead of a full scan of the
# ~740k-doc collection.
coll.create_index([("run_hash", ASCENDING)], sparse=True)
coll.create_index([("run_time", ASCENDING)])
coll.create_index([("ascension", DESCENDING), ("run_time", ASCENDING)])
coll.create_index([("character", ASCENDING), ("submitted_at", DESCENDING)])
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