Rapid Fire: Vector Databases
Question → 3-line answer, flashcard style.
Prerequisites
Vector Databases — work through the full section first. This deck strengthens recall of material you already understand; it will quietly fail you on material you don't.
How to use this deck
Cover the answer. Read only the question. Say your answer out loud, in full sentences, as if explaining it to someone who hasn't read the page. Then uncover and compare — not "did I know it?" but did I say it as cleanly as that?
Recognising an answer feels almost identical to being able to produce one, and the two come apart the moment you have to actually explain something. Anything you couldn't say fluently is a signal to reread its full page, one click away below.
Choosing the store
Card 1 of 5
pgvector or a dedicated vector DB?
Filtering
Card 1 of 3
Pre-filtering vs post-filtering?
Multi-tenancy
Card 1 of 2
What are the multi-tenancy patterns for vector search?
Operations
Card 1 of 5
Index rebuild vs incremental upsert?
Full treatment: Vector Databases — the mechanisms behind every answer above.