advanced-jsonb-indexing

JSONB queries without indexes scan the entire table. Use GIN indexes for containment queries.

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/advanced-jsonb-indexing && curl -fsSL https://doutorai.pt/data/lib/skills__advanced-jsonb-indexing.md -o .claude/skills/advanced-jsonb-indexing/SKILL.md

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

Content

---
title: Index JSONB Columns for Efficient Querying
impact: MEDIUM
impactDescription: 10-100x faster JSONB queries with proper indexing
tags: jsonb, gin, indexes, json
---

## Index JSONB Columns for Efficient Querying

JSONB queries without indexes scan the entire table. Use GIN indexes for containment queries.

**Incorrect (no index on JSONB):**

```sql
create table products (
  id bigint primary key,
  attributes jsonb
);

-- Full table scan for every query
select * from products where attributes @> '{"color": "red"}';
select * from products where attributes->>'brand' = 'Nike';
```

**Cor

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