iresearch | performance document oriented search engine library | Search Engine library

iresearch is a C++ library typically used in Database, Search Engine applications. iresearch has no bugs, it has no vulnerabilities and it has low support. However iresearch has a Non-SPDX License. You can download it from GitHub.

The IResearch library is meant to be treated as a standalone index that is capable of both indexing and storing individual values verbatim. Indexed data is treated on a per-version/per-revision basis, i.e. existing data version/revision is never modified and updates/removals are treated as new versions/revisions of the said data. This allows for trivial multi-threaded read/write operations on the index. The index exposes its data processing functionality via a multi-threaded 'writer' interface that treats each document abstraction as a collection of fields to index and/or store. The index exposes its data retrieval functionality via 'reader' interface that returns records from an index matching a specified query. The queries themselves are constructed from either string IQL (index query language) requests or query trees built directly using the query building blocks available in the API. The querying infrastructure provides the capability of ordering the result set by one or more ranking/scoring implementations. The ranking/scoring implementation logic is plugin-based and lazy-initialized during runtime as needed, allowing for addition of custom ranking/scoring logic without the need to even recompile the IResearch library.