Using Table Partitioning Effectively
Introduction In the previous article, we explored how to use table partitioning. However, you might have realized that we need to create partitions manually. This approach has limitations, including the difficulty of centralized management and the risk of missing partitions if data volume grows excessively large in the future (requiring additional partitions). Therefore, I will guide you on how to create and manage partitions effectively. Hash Partitioning Hash Partitioning operates by evenly distributing data into a fixed number of partitions right from the start using the MODULUS algorithm, which includes the following information: MODULUS (M) : The total fixed number of partitions into which you want to distribute the data. REMAINDER (R) : The identifying remainder for that specific partition (ranging from 0 to M - 1). The MODULUS algorithm works exactly as its name suggests by calculating the remainder. When inserting a record into the parent table: Postgres will use a hash funct...