Write a SQL Query Review Checklist

Create a SQL query review checklist for this team and stack:

Database: [POSTGRES / MYSQL / BIGQUERY / SNOWFLAKE]
Typical query types: [REPORTING / ETL / APP / AD HOC]
Data sensitivity: [PII / FINANCIAL / PUBLIC]
Performance SLOs: [LATENCY OR COST LIMITS]
Existing standards: [PASTE OR NONE]
Team size: [SIZE]

Requirements:
1. Cover correctness, readability, indexes, joins, filters, and null handling.
2. Add security checks (least privilege columns, no secrets in comments, PII redaction).
3. Include performance smells (SELECT *, unbounded scans, nested loops risk).
4. Make items yes/no with a short "why it matters" note.
5. Keep it usable as a PR template comment.

Deliverables:
1. A prioritized checklist grouped by Correctness, Performance, Security, Maintainability.
2. Three example bad-query snippets with a safer rewrite.
3. A 5-item "fast path" for tiny one-off queries.