To configure PostgreSQL for optimal UNDO and REDO operations, you must consider several configuration parameters that directly control the behavior of the database engine. Specifically, these parameters determine how PostgreSQL manages transaction logging and recovery, […]
In PostgreSQL, the maintenance_work_mem configuration parameter controls how much memory the system allocates for maintenance operations, including VACUUM. When you run a VACUUM operation, PostgreSQL sorts and processes data pages. This process helps reclaim disk […]
Introduction: In a busy PostgreSQL database environment, resource conflicts can frequently arise. As a result, queries may become blocked, significantly impacting overall system performance. Therefore, identifying and resolving these blocking queries becomes a top priority […]
Introduction: This blog post focuses on analyzing table size and bloat using the provided SQL query. Database bloat can significantly impact PostgreSQL performance, leading to increased storage requirements and slower query execution. We will explain […]
Introduction: Index bloat can significantly impact the performance and storage efficiency of a PostgreSQL database. Therefore, to identify and understand the extent of index bloat, we can use the SQL query provided below. In this […]
In PostgreSQL, I/O (Input/Output) refers to the process of reading and writing data to and from storage devices, such as hard disks or SSDs. PostgreSQL manages I/O operations to efficiently store and retrieve data. Here’s […]
Starting logical replication in PostgreSQL for specific tables based on a pg_dump involves a series of steps. Here’s a step-by-step guide: CREATE PUBLICATION my_publication FOR TABLE table1, table2, …;ALTER PUBLICATION my_publication ADD TABLE table3, table4, […]
Are you curious why PostgreSQL lacks query hints and how you can still influence execution plans? Discover alternative techniques to force join orders in PostgreSQL and optimize query performance. Why PostgreSQL avoids query hints? Dive […]
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