r/vectordatabase is a subreddit with 12k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses vector database, vector search, vector, rag, and vector db, and they frequently recommend/review database and etl tool.
A place to discuss open-source vector database and vector search applications, features and functionality to drive next-generation solutions. Check out our own Open-source Github at https://github.com/milvus-io/
Popular Themes in r/vectordatabase
#1
Advice Requests
: "Advice needed: Is PostgreSQL + pgvector good enough for a business directory chat app?"
7 posts
#2
Solution Requests
: "best vector db for 1M rows?"
6 posts
Popular Topics in r/vectordatabase
#1
Vector Database
: "Vector Database benchmarks are almost all vendor-optimized and the industry barely talks about it"
21 posts
#2
Vector Search
: "Improving Vector Search for Jobs with Semantic Gating"
13 posts
#3
Vector
: "Improving Vector Search for Jobs with Semantic Gating"
13 posts
#4
Rag
: "Anyone interested in Tokyo Unstructured Data Meetup: Vector DB /Rag /Voice Agents (Dec 21)"
10 posts
#5
Vector Db
: "Looking for best practices: Kafka → Vector Db ingestion and transformation"
7 posts
#6
Graph
: "Do you actually need a Graph database for Graph RAG?"
6 posts
#7
Embedding
: "An Embedding compression experiment for vector search"
5 posts
#8
Pinecone
: "Benchmark: pgvector vs Pinecone vs Qdrant vs Weaviate"
4 posts
#9
Weaviate
: "Benchmark: pgvector vs Pinecone vs Qdrant vs Weaviate"
4 posts
#10
Qdrant
: "Benchmark: pgvector vs Pinecone vs Qdrant vs Weaviate"
3 posts
Member Growth in r/vectordatabase
Yearly
+4k members(55.9%)
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Last updated: August 24, 2026