ArangoDB v3.6 reached End of Life (EOL) and is no longer supported.

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ArangoSearch provides information retrieval features, natively integrated into ArangoDB’s query language and with support for all data models. It is primarily a full-text search engine, a much more powerful alternative to the full-text index type.

ArangoSearch introduces the concept of Views which can be seen as virtual collections. Each View represents an inverted index to provide fast full-text searching over one or multiple linked collections and holds the configuration for the search capabilities, such as the attributes to index. It can cover multiple or even all attributes of the documents in the linked collections. Search results can be sorted by their similarity ranking to return the best matches first using popular scoring algorithms.

Configurable Analyzers are available for text processing, such as for tokenization, language-specific word stemming, case conversion, removal of diacritical marks (accents) from characters and more. Analyzers can be used standalone or in combination with Views for sophisticated searching.

The ArangoSearch features are integrated into AQL as SEARCH operation and a set of AQL functions.

Example use cases:

  • Perform federated full-text searches over product descriptions for a web shop, with the product documents stored in various collections.
  • Find information in a research database using stemmed phrases, case and accent insensitive, with irrelevant terms removed from the search index (stop word filtering), ranked by relevance based on term frequency (TFIDF).
  • Query a movie dataset for titles with words in a particular order (optionally with wildcards), and sort the results by best matching (BM25) but favor movies with a longer duration.