Ship and explain the tenant pgvector index

A shippable lab artifact includes: how to run it, the metric result (tenant isolation test (0 cross-tenant hits); version pin echoed in response), the failure you can still reproduce (missing tenant filter in SQL, or querying a stale index version silently), the security gate for SQL injection via query text concatenated into the vector search, and a rollback note. The user decision it supports remains: replace an in-memory list with a versioned vector index that cannot leak across tenants.

print({'artifact':'tenant pgvector index','proved':['isolation test','version pin'],'unproved':['prod load'],'owner':'search-ops'})

Expected evidence: vector-db ship note. Store this beside the fixture version so scores remain meaningful after content changes in vector-db-lab.

State operating limits for the tenant pgvector index in plain language: fixture size, offline vs live dependencies, and what would require a new eval set. Shipping vector-db-lab is honest scoping, not maximal confidence language.

Fill this table in your notes for the tenant pgvector index:

• Proved on two tenants with overlapping vocabulary FAQ chunks: …
• Unproved beyond the fixture: …
• Metric that blocks release: tenant isolation test (0 cross-tenant hits); version pin echoed in response
• Failure still reproducible: missing tenant filter in SQL, or querying a stale index version silently
• Security gate: SQL injection via query text concatenated into the vector search
• Rollback: …

Ship the narrative only when the unproved list is honest. Reviewers trust narrow claims that support replace an in-memory list with a versioned vector index that cannot leak across tenants more than maximal language that collapses under the first production oddity.

Hand your ship note to a peer and ask them to recreate a proved/unproved ship note with rollback without watching you type. If they cannot, your evidence is still tribal knowledge. Tighten the run command and the metric line until a stranger can validate the tenant pgvector index against two tenants with overlapping vocabulary FAQ chunks.

At the mastery and shipping stage for vector-db-lab, the job is narrower than finishing a product demo. You are creating one progressive evidence piece about two tenants with overlapping vocabulary FAQ chunks that later pages inherit without redefining success. Keep that fixture small enough to inspect by hand, keep outputs copy-pasteable as text, and refuse to narrate this baseline as if it were a production SLA: in-memory cosine search on the same fixtures.

For this page specifically, success looks like a proved/unproved ship note with rollback while still centering the user decision to replace an in-memory list with a versioned vector index that cannot leak across tenants. If you cannot point to a file, command, or assertion that proves that for the tenant pgvector index, stay on this page instead of advancing.

Glossary: vector database · Glossary: vector index · Cheatsheet: RAG quality

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