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postgres-optimization

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PostgreSQL optimization including indexes, query plans, partitioning, JSONB operations, and connection pooling

skills/postgres-optimization/SKILL.md

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# PostgreSQL Optimization

## Index Strategies

```sql
-- B-tree index for equality and range queries (default)
CREATE INDEX idx_orders_customer_id ON orders (customer_id);

-- Composite index (column order matters: equality columns first, range last)
CREATE INDEX idx_orders_status_created ON orders (status, created_at DESC);

-- Partial index (smaller, faster for filtered queries)
CREATE INDEX idx_orders_pending ON orders (created_at)
  WHERE status = 'pending';