Partitioning Tables can greatly improve the efficiency of your Postgres queries by drastically reducing the size of the result set being processed. In this video, Jon Meyers demonstrates how to refactor a giant multi-tenant table into much smaller, individual partitions.
🐘 Partitioning tables: [ Ссылка ]
Table partitioning in Postgres is a powerful database feature that allows large tables to be divided into smaller, more manageable pieces called partitions. Each partition can be accessed and managed independently, improving query performance and simplifying maintenance. Partitions can be created based on various criteria, such as range, list, or hash, enabling efficient organization of data. By filtering queries to search within specific partitions, database operations become faster and more efficient. This technique is particularly useful for handling large datasets, optimizing resource usage, and enhancing overall database performance.
00:00 When you need Table Partitions
02:19 Creating a Partitioned Table by List of values
03:39 Creating Partitions for each unique value
04:42 Querying partitioned tables
06:21 Maintaining partitions as data changes
08:36 Querying across multiple partitions
09:18 Combining Indexes with Partitioned Tables
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