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pgvector/pgvector-python
order by distance not work on django model

When I use the python code: Article.objects.all().queryset.annotate( distance=CosineDistance( title_vector , [1,2,3]) ).filter(pub_date__gte= 2021-01-01 ).order_by( distance )[:100] It returns ...
  • ayang
  • 3
  • Opened 
    1 hour ago
  • #121

pgvector/pgvector-python
Support pgvecto.rs

when using pgvecto.rs it refuses to register_vector File /site-packages/pgvector/psycopg2/register.py , line 21, in register_vector raise psycopg2.ProgrammingError( vector type not found in the ...
  • danya0123
  • Opened 
    25 days ago
  • #120

pgvector/pgvector-python
Improving Recall When Filtering on very small subset

Hi, I m encountering an issue with my PostgreSQL + PGVector setup: I have a table containing vectors and a category_id, and I always need to filter on a specific category_id. However, since I have hundreds ...
  • ggalpra
  • 1
  • Opened 
    28 days ago
  • #119

pgvector/pgvector-python
Alembic DDL mismatch for HALFVEC index

Hi, I m facing a few issues with using Alembic and SQLAlchemy when creating halfvec indices. 1. The DLL generated by alembic given the index is invalid My index: Index( ix_chunks_vector , ...
  • jleguina
  • 1
  • Opened 
    on Feb 7
  • #118

pgvector/pgvector-python
Support multimodal embedding?

  • moghadas76
  • 1
  • Opened 
    on Feb 6
  • #117

pgvector/pgvector-python
Wrong class imported for SQLAlchemy

This example does not work for SparseVector and HalfVector: from pgvector.sqlalchemy import Vector class Item(Base): embedding = mapped_column(Vector(3)) When importing using: from pgvector.sqlalchemy ...
  • tux-type
  • 1
  • Opened 
    on Jan 28
  • #116

pgvector/pgvector-python
Problem about getting the distance ,using pgvector.psycopg2

Here is my data in table called items : ID: 1, embedding: [1. 2. 3.] ID: 2, embedding: [4. 5. 6.] ID: 3, embedding: [ 11. 233. 48.] ID: 4, embedding: [ 11. 233. 48.] ID: 5, embedding: [ 14. 22. ...
  • sky92archangel
  • 1
  • Opened 
    on Jan 23
  • #115

pgvector/pgvector-python
Error: could not convert string to float when executing SELECT or ADD query with cosine_distance

When running a SELECT or ADD query with cosine_distance on the embedding column, I encountered the following error: (sqlalchemy.dialects.postgresql.asyncpg.Error) class asyncpg.exceptions.DataError ...
  • SharkSyl
  • 2
  • Opened 
    on Jan 23
  • #114

pgvector/pgvector-python
Add type hints support for static type checking

Currently, when using pgvector with type checkers like mypy, I encounter the following error: error: Skipping analyzing pgvector.sqlalchemy : module is installed, but missing library stubs or py.typed ...
  • abrichr
  • 1
  • Opened 
    on Jan 18
  • #113

pgvector/pgvector-python
Cannot Insert or Update Data into a `bit(64)` in SQLAlchemy

I have a table messages (model shown below) with a BIT(64) column in PostgreSQL, and I m trying to insert or update data into that column using SQLAlchemy (via pgvector-python). However, I m getting an ...
  • ivanstepanovftw
  • 2
  • Opened 
    on Jan 6
  • #112
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