lance-format/lance

[DuckDB] Expose vector search capability via duckdb extension

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#640 创建于 2023年2月25日

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描述

Problem Statement

Lance rust dataset has the capability of querying over vector space, via Scannner::nearest(..), we should expose this to DuckDB via its extension mechanism. For example, a potential implementation could be a duckdb table function lance_nearest

SELECT id, col 
FROM lance_nearest("table", "vector_column", "query", top_k)
WHERE city = 'SF' and day = "02-03-2023"

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