What is Table Partitioning in PostgreSQL (psql)?

 

✅ What is Table Partitioning in PostgreSQL (psql)?

Table Partitioning in PostgreSQL is a way to divide a large table into smaller, more manageable pieces (called partitions), while still querying them as a single table.
It helps improve performance, especially for big datasets, by making queries faster and maintenance easier.

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✅ Types of Partitioning in PostgreSQL:

Type	Description
Range Partitioning	Divides data based on ranges (e.g., date ranges).
List Partitioning	Divides data based on a list of values (e.g., category names).
Hash Partitioning	Uses a hash function to distribute data across partitions.

 

✅ How to Manually Create Partition Tables in PostgreSQL

In PostgreSQL, you must create partitions manually after creating the parent table (unlike some databases with automatic partition creation).

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✅ Step-by-Step Guide:

✅ 1. Create Parent (Main) Table