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Installation and configuration of pgBadger

pgBadger is a PostgreSQL log analyzer that can be used to analyze and summarize the PostgreSQL log files to help identify performance issues and troubleshoot problems. Here are the steps to install and configure pgBadger […]

PostgreSQL Index Bloat: How Large Indexes Corrupt Execution Plans

Large indexes in PostgreSQL can corrupt execution plans by causing the query planner to choose suboptimal plans due to the cost of scanning the large index. When the size of an index exceeds the effective_cache_size […]

PostgreSQL15 Replication Lag: Reducing It with IO Concurrency

PostgreSQL 15 introduced a new feature called “asynchronous commit”, which can help reduce replication lag by allowing multiple transactions to be committed concurrently. This feature works by allowing the server to continue processing new transactions […]

PostgreSQL Contention: Troubleshooting Thread Contention

Thread contention in PostgreSQL occurs when multiple threads are competing for the same resources, such as CPU time, disk I/O, or database locks. This can lead to performance degradation, slower response times, and even database […]

How do we Troubleshoot PostgreSQL Contention in MinervaDB?

In PostgreSQL, the catalog tables are system tables that store metadata information about the database objects such as tables, indexes, functions, and users. The catalog tables can be used to troubleshoot contention issues by providing […]

PostgreSQL Explicit Locking: Why We Recommend It for Concurrent Transactions

In PostgreSQL, if explicit locking is not enforced, duplicate records can be inserted when multiple concurrent transactions try to insert the same record simultaneously. This can occur when two or more transactions are executed concurrently […]

OR Logic PostgreSQL Outer Joins: How It Influences Performance

Using OR logic in outer joins can have a significant impact on PostgreSQL performance, especially when joining large tables. Here are a few factors to consider: To mitigate the impact of OR logic on PostgreSQL […]

PostgreSQL Delete Records: Optimally Deleting Rows Referenced from Another Table

When deleting records from a table that are referenced by other tables in PostgreSQL, there are several ways to ensure that the deletion is performed optimally and does not violate any foreign key constraints. Here […]

Anatomy of PostgreSQL I/O Subsystem

The I/O subsystem is a critical component of PostgreSQL, responsible for reading and writing data to and from disk. Here is an overview of the anatomy of PostgreSQL’s I/O subsystem: Monitoring the I/O subsystem is […]

Plan Cache Based Execution Statistics PostgreSQL: How It Is Implemented

Plan Cache Based Execution Statistics is a feature in PostgreSQL that collects and aggregates execution statistics for SQL statements that are stored in the plan cache. This allows users to monitor and analyze the performance […]

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