monitor-vacuum-analyze

Outdated statistics cause the query planner to make poor decisions. VACUUM reclaims space, ANALYZE updates statistics.

Skills
Databases
0

What it does and how to use it

A skill that teaches Claude Code to do databases tasks well. It is packaged knowledge the model uses whenever it is relevant.

Install the skill (command above).
In Claude Code, describe what you need - the skill turns on by itself when the context fits.
No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/monitor-vacuum-analyze && curl -fsSL https://doutorai.pt/data/lib/skills__monitor-vacuum-analyze.md -o .claude/skills/monitor-vacuum-analyze/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

---
title: Maintain Table Statistics with VACUUM and ANALYZE
impact: MEDIUM
impactDescription: 2-10x better query plans with accurate statistics
tags: vacuum, analyze, statistics, maintenance, autovacuum
---

## Maintain Table Statistics with VACUUM and ANALYZE

Outdated statistics cause the query planner to make poor decisions. VACUUM reclaims space, ANALYZE updates statistics.

**Incorrect (stale statistics):**

```sql
-- Table has 1M rows but stats say 1000
-- Query planner chooses wrong strategy
explain select * from orders where status = 'pending';
-- Shows: Seq Scan (because stats show s

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