feat: support for DiskANN index #227
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Thank you @nazarpechka for the Pull Request. At this time I would recommend adding documentation to https://github.com/langchain-ai/langchain-postgres/blob/main/examples/pg_vectorstore_how_to.ipynb to show developers how they can implement this themselves. |
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This PR adds support for DiskANN index, available on Azure PostgreSQL Flexible Server.
As it's not possible to create local unit tests for this index, I have created this PR as a draft and don't expect it to be merged.
It might be useful to some people nevertheless, as Microsoft promises better performance and less RAM usage, compared to HNSW.