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 […]
PostgreSQL provides three transaction isolation levels, which control the visibility of changes made by concurrent transactions. PostgreSQL Locks: PostgreSQL uses various types of locks to ensure data consistency in concurrent environments. Locks can influence performance […]
PostgreSQL provides a powerful statistics collection system that can be used to gather information about the behavior of the database system. This information can be used to diagnose performance problems, optimize queries, and tune the […]
Understanding PostgreSQL Wait Statistics is critical for optimizing database performance. Wait Statistics provide insights into the resources that are being blocked and the time that is being spent waiting for those resources. Here’s an overview […]
pg_stat_statements is a PostgreSQL extension that provides a detailed view of the SQL statements executed by the database server. It can be used to monitor the performance of VACUUM and ANALYZE operations by tracking the […]
Index fragmentation in PostgreSQL can occur when data is inserted, updated, or deleted in a table. As new data is added, the index can become fragmented, meaning that the data is no longer physically ordered […]
Using the OR operator in a SQL query can result in poor performance, especially when used in combination with other operators, such as LIKE, IN, and subqueries. In PostgreSQL, there are several techniques that can […]
Partitioned Bitmaps are a technique used to speed up queries on large databases by breaking them down into smaller pieces, or partitions, that can be searched independently. PostgreSQL supports Partitioned Bitmaps through the use of […]
The BgWriter process in PostgreSQL is responsible for flushing dirty pages from the shared buffer pool to disk. As such, it is a critical component of the database system and it is important to monitor […]
UPDATE latency refers to the time taken by PostgreSQL to perform an UPDATE operation on a table. Slow UPDATE operations can negatively impact the overall performance of the database. Here are some steps to troubleshoot […]
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