Full-Text Search — Azure DocumentDB ($search + createSearchIndexes)

Azure DocumentDB's full-text search is driven by search indexes built with the createSearchIndexes database command and queried through the $search aggregation stage. Scoring is BM25, exposed via $meta: "searchScore". The community $text operator and { field: "text" } index type are not the DocumentDB search path.

Key syntax points that differ from many blog posts and older docs:

• Index command is createSearchIndexes (not createIndexes) — each index has a name and a definition.mappings.fields block; dynamic: false is the safe default.
• Custom analyzers live inside definition.analyzers and are referenced per-field via analyzer / searchAnalyzer.
• $search targets an index by name via index: "<name>" — the engine does not auto-pick when multiple exist.
• No count field inside $search — use a downstream { $limit: N } stage.
• No compound operator yet — query one field at a time and merge in the application (see fts-multifield-index).

Rules