PostgreSQL DBA Archives

Optimizing PostgreSQL Performance: Navigating the Use of Bind Variables in PostgreSQL 16

In PostgreSQL, bind variables, also known as parameterized queries or prepared statements, are widely used to execute SQL queries more efficiently and securely. By separating the query structure from the data values, bind variables help […]

Understanding the Internal Locking Hierarchy and Mechanisms in PostgreSQL

In PostgreSQL, the locking mechanism is crucial for concurrency control, ensuring data integrity and consistency by preventing simultaneous incompatible operations. PostgreSQL employs a variety of lock types that operate at different levels of granularity, from […]

Optimizing PostgreSQL Performance: A Comprehensive Guide to Rowstore Index Implementation and Tuning

PostgreSQL Rowstore Index Optimization PostgreSQL rowstore indexes use the standard indexing method by storing and managing data in rows for efficient access. Additionally, PostgreSQL supports index types like B-tree, Hash, GiST, SP-GiST, GIN, and BRIN, [...]

PostgreSQL for SQL Server DBAs – What is an alternative to sys.dm_exec_query_stats in the PostgreSQL world?

PostgreSQL for SQL Server DBAs The sys.dm_exec_query_stats Dynamic Management View (DMV) in Microsoft SQL Server provides performance statistics for cached query plans. It allows database administrators and developers to monitor and analyze SQL query performance, […]

Optimizing PostgreSQL Performance: Mastering Checkpointing Configuration

Checkpointing in PostgreSQL Checkpointing in PostgreSQL plays a crucial role in performance. Here's a breakdown of how it impacts various factors: Impact of Checkpointing in PostgreSQL on Performance: I/O Activity: PostgreSQL writes all modified data [...]

Step-by-Step Guide to Setting Up Point-in-Time Recovery in PostgreSQL 16

Point-in-Time Recovery in PostgreSQL Point-in-Time Recovery (PITR) in PostgreSQL 16 offers a robust solution for database backup and disaster recovery. PITR revolves around the continuous archiving of WAL (Write-Ahead Logging) files and the ability to […]

Adaptive Joins in PostgreSQL 16 (mimicked feature)

Introduction PostgreSQL does not natively offer "Adaptive Hash Joins" as a built-in feature for query execution.Instead, the query planner selects join methods, such as nested loop, hash join, or merge join, during plan generation.Additionally, it [...]

Optimize PostgreSQL Performance: Strategic Use of SKIP_DATABASE_STATS and ONLY_DATABASE_STATS

Optimize PostgreSQL Performance Configuring SKIP_DATABASE_STATS and ONLY_DATABASE_STATS in PostgreSQL requires careful consideration to optimize PostgreSQL performance and maintain efficient database operations. In summary, while these options can customize backups to suit specific needs, their incorrect [...]

Speed Up Your PostgreSQL 16 Backups with Improved pg_dump

Example: When using pg_dump in PostgreSQL 16, you can specify the compression method: Here, -F c specifies custom-format output, -Z specifies the compression level (1 for LZ4, 3 for ZSTD), and -f specifies the output [...]

Installing and Configuring pgvector in PostgreSQL: A Step-by-Step Guide

Introduction - pgvector in PostgreSQL pgvectorin PostgreSQL is an open-source extension designed to efficiently handle vector data within the database. It's particularly useful for machine learning and similar applications where working with vector data is [...]

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PostgreSQL DBA