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    #bm25

    1 post

    September 15, 2026 · 8 min read

    Search in Polecat, Part 1: Full text search on an index it owns

    Polecat 5.29 added keyword search to the Critter Stack's SQL Server store, and it does not use SQL Server's full-text engine to do it. The inverted index Polecat maintains itself, the LINQ operators over it, and BM25 ranking derived from the token rows.

    polecat sql-server dotnet critter-stack

    Crafted with in Bangalore

    Ideas brewed over fresh filter coffee

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