quivr/backend/vectorstore/supabase.py
Stan Girard 36b008e0eb
feat: Refactor get_question_context_for_brain endpoint (#1872)
to return a list of DocumentAnswer objects

# Description

Please include a summary of the changes and the related issue. Please
also include relevant motivation and context.

## Checklist before requesting a review

Please delete options that are not relevant.

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented hard-to-understand areas
- [ ] I have ideally added tests that prove my fix is effective or that
my feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged

## Screenshots (if appropriate):
2023-12-12 22:33:23 +01:00

62 lines
1.7 KiB
Python

from typing import Any, List
from langchain.docstore.document import Document
from langchain.embeddings.base import Embeddings
from langchain.vectorstores import SupabaseVectorStore
from supabase.client import Client
class CustomSupabaseVectorStore(SupabaseVectorStore):
"""A custom vector store that uses the match_vectors table instead of the vectors table."""
brain_id: str = "none"
def __init__(
self,
client: Client,
embedding: Embeddings,
table_name: str,
brain_id: str = "none",
):
super().__init__(client, embedding, table_name)
self.brain_id = brain_id
def similarity_search(
self,
query: str,
k: int = 6,
table: str = "match_vectors",
threshold: float = 0.5,
**kwargs: Any
) -> List[Document]:
vectors = self._embedding.embed_documents([query])
query_embedding = vectors[0]
res = self._client.rpc(
table,
{
"query_embedding": query_embedding,
"match_count": k,
"p_brain_id": str(self.brain_id),
},
).execute()
match_result = [
(
Document(
metadata={
**search.get("metadata", {}),
"id": search.get("id", ""),
"similarity": search.get("similarity", 0.0),
},
page_content=search.get("content", ""),
),
search.get("similarity", 0.0),
)
for search in res.data
if search.get("content")
]
documents = [doc for doc, _ in match_result]
return documents