issue #38: fix search implementation to drop use of documents view

[rngadam]

Fixes #38

Got search down to 731ms with ailab-db on our Azure Flexible Postgresql search instance (schema louis_v005)

changed :

• remove use of the documents view
• turn md5hash into md5hash_uuid and index newly created md5hash_uuid
• index html_content_to_chunk.chunk_id

this includes archiving the query and using precomputed document scores to sort docs.

TODO

But I see that finesse_backend actually uses match_documents:

https://github.com/ai-cfia/finesse-backend/blob/107c79f28311852376201dcd6ab931a3a769a627/app/ailab_db/__init__.py#L22C20-L22C51

instead of search:

ailab-db/ailab/db/api/__init__.py

Line 68 in fd08308

def search(cursor, query_embedding):

[k-allagbe]

Tested and results are under 900ms 🚀. Only missing an end of file.

[k-allagbe]

There is an issue with the tests failing but I reported it here #90

[JolanThomassin]

Look good for me