Improve pgvector docs #755
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Thank you! I was about to do this myself |
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Hi, thanks for adding pgvector to the LangChain ecosystem!
The docs currently instruct users to run
CREATE INDEXright after creating the table. However, this will lead to poor recall. I think it'd be better for users to use exact nearest neighbor search (for perfect recall) and only add an index when querying becomes slow (and the table has data).More info: https://github.com/pgvector/pgvector#indexing