Problemsby GlyphVector search quality and scaling are hard to get right
12 posts from 12 people12d activeSteady, +1 this week
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The posts behind it
.Net: Python: Bug: SqlServerCollection search fails with the default distance function and orders dot results farthest-first
**Describe the bug** SQL Server vector searches are ordered through the shared `DISTANCE_FUNCTION_DIRECTION_HELPER`, which treats dot product as a similarity. Two user-visible failures follow: - A vector field left at its default distance function (`VectorStoreField("vector",...
ChromaDB vs. pgvector for filter-heavy retrieval in an existing PostgreSQL setup?
...on the trade-offs between these two options for my specific use case, as well as advice on vector dimensions.. My Setup & Requirements:. Primary Database: PostgreSQL (already hosting relational data).. . Search Strategy: Strict filter-based retrieval (e.g., filtering by user_id...
How to automatically create a DynamoDB Local table when running docker compose up
...API at startup, only if it does not already exist.. Which approach is recommended, and how can I make sure the table creation waits until DynamoDB Local is actually accepting connections?.
[Bug]: Couchbase vector store debug logs pass arguments without %s placeholders, causing logging errors
### Bug Description Three `logger.debug` calls in `llama-index-vector-stores-couchbase` pass an extra argument to a message that has no `%s` placeholder: - `add()`: `logger.debug("Inserting batch of documents to Couchbase", insert_batch)` - `_check_bucket_exists()`:...
Gemini Node error with tool calls
### Bug Description The Google Gemini node "Message a model" fails with this error message, when connected tool nodes are being used: Bad request - please check your parameters _Role 'tool' is not supported. Please use a valid role: SYSTEM, SYSTEM_1, USER, ASSISTANT, DEVELOPER,...
.Net: C#: Requesto to integrate a new Vector Database in C#
Hello! I authored a pure C# vector database and I'm currently writing integrations for vector data following Semantic Kernel's contracts and features: https://github.com/ppossanzini/jigen I'd like to ask if you'd be open to a pull request adding a new VectorStore/VectorData...
feat: configurable text search language for pgvector hybrid search
### Before Submitting - [x] I searched open and closed issues and discussions for an existing request. - [x] I checked whether this already exists on the `dev` branch or latest source. - [x] I understand that maintainers want a well-written issue or discussion before any code...
Bug: RAG_EMBEDDING_DIMENSIONS not passed to Ollama /api/embed endpoint
### Before Submitting - [x] I searched open and closed issues and discussions for an existing report. - [x] I reproduced this bug on the latest release AND on the current `dev` branch, right before submitting this report. I did not just check an old version or rely on a check...
Help please. How do I move forward in my career?
Hey everyone, I usually just read posts without interacting, but I think it's time for me to ask for some advice.. Here's my situation: I'm 25 years old, based in Spain, and I have 3 years of professional experience as a data engineer. I've worked at 3 different companies, all...
Feature: cross-workflow agent memory — persistent verified memory for AI Agent nodes
I maintain [cognicore-env](https://github.com/cognicore-dev/cognicore-env) (open-source, MIT) - an agent memory layer that runs as an MCP server with no vector database or embedding server. N8n agent workflows can consume it today with zero changes; this issue is about making...
What Breaks in AI Agent Memory After Months in Production?
...build yourself? . I'd especially like to know about things that actually broke or became painful in production..
...faces in my head even if my life depended on it. I'm not face blind, my brain just doesn't work like that. I also have zero internal monologue. I can "talk" in my head, but it's just me, there's no discussion or multiple participants and none of it is unprompted. I'm pretty sure...
Companies and products named
About this problem
Evidence
12 posts from 12 people in 9 places, about 1 a week over 67 days. Mostly on n8n-io/n8n, open-webui/open-webui, microsoft/semantic-kernel. Tools named alongside: PostgreSQL, pgvector, Docker, GitHub.
Frustration Frustration 0 of 3· Seen on GitHub issues, Reddit, Stack Overflow, Hacker News
How it was grouped
Posts that state a pain and match the "vector-search" rule. First post Aug 29, 2026, latest Nov 3, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method
The same problem elsewhere
Qdrant vector search quality is hard to get right
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2 posts from 2 people on Reddit. Unverified.
Oracle vector search quality is hard to get right
2 posts from 2 people on GitHub issues. Unverified.
Claude Code vector search quality is hard to get right
2 posts from 2 people on GitHub issues. Unverified.
ClickHouse vector search quality is hard to get right
2 posts from 2 people on GitHub issues. Unverified.
Pinecone vector search quality is hard to get right
2 posts from 1 person on GitHub issues. Unverified.
History