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Deleting Millions Rows PostgreSQL: How to Do It Efficiently

Strategies for Efficiently Deleting Millions of Rows in PostgreSQL When deleting a large number of rows from a PostgreSQL table, you must consider efficiency. This helps avoid excessive disk I/O and minimizes the impact on […]

PostgreSQL UNDO and REDO: Configuring for Optimal Operations

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, […]

PostgreSQL maintenance_work_mem: How It Is Used for VACUUM

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 […]

PostgreSQL WAL and WAL Writer Process Explained

PostgreSQL Blocking Queries: Identifying and Resolving Resource Conflicts

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 […]

PostgreSQL Bloat Analysis: Identifying Large and Bloated Tables

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 […]

PostgreSQL Index Bloat: Analysis and Detection

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 […]

How does PostgreSQL I/O Work?

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 […]

PostgreSQL Subqueries: Replacing Aggregate Functions with Window Functions

PostgreSQL Logical Replication: Starting It for Specific Tables Based on a pg_dump

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, […]

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