Scripts

PostgreSQL Performance Boost: Understanding Vacuum, Analyze, and Bloat Maintaining peak PostgreSQL database performance means understanding the crucial processes of vacuuming and analysis. Left unchecked, dead tuples (deleted or updated rows) can lead to table bloat, slowing queries and wasting space. This article …

Mastering PostgreSQL Locks: Troubleshooting and Performance Insights In a busy PostgreSQL database, multiple transactions might try to access the same resources simultaneously. Locks are PostgreSQL's way of handling concurrency, ensuring data consistency and preventing conflicts. This article dives into PostgreSQL lock …

PostgreSQL Lock Troubleshooting: Unlocking Blocked Processes In a busy PostgreSQL environment, transactions can sometimes become blocked, waiting for other transactions to release locks. This can slow performance and even cause stalls. This article dissects a powerful PostgreSQL script designed to expose blocked …

Find Unused PostgreSQL Indexes Before They Cost You Which indexes have gone unused since the statistics were last reset? pg_stat_all_indexes counts every index scan per index, and an index whose idx_scan is still zero after weeks of normal traffic is a candidate to drop. The query below lists those indexes, largest …

Identifying Unused Indexes in PostgreSQL: Optimizing Storage and Performance In PostgreSQL, indexes act as shortcuts, accelerating data retrieval within tables. However, unused indexes can become a burden, consuming storage space and potentially impacting performance. This article explores a PostgreSQL code snippet …

Your PostgreSQL Configuration PostgreSQL 12 finished a set of SQL functions that list the contents of the server's own directories: pg_ls_waldir() and pg_ls_logdir() arrived in version 10, and pg_ls_archive_statusdir() and pg_ls_tmpdir() followed in 12. Combined with current_setting() for the paths themselves, a single …

Identify Idle PostgreSQL Connections: Keep Your Database Clean A session in state idle since 09:14 is a client that connected, finished its work and never hung up. pg_stat_activity has one row per server process, and its state and state_change columns list every session like it. A short query against that view lists …

PostgreSQL Index Cardinality: A Guide to Understanding Index Efficiency This blog post delves into the world of PostgreSQL index cardinality, a crucial metric for optimizing database performance. We'll dissect the provided SQL code, explain its purpose, and equip you with valuable insights to make informed decisions …

Unveiling Your PostgreSQL Server: A Treasure Trove of Information This comprehensive PostgreSQL script delves into the inner workings of your database server, revealing valuable details about its version, configuration, connections, users, and more. It empowers database administrators and developers with insights to …

Identifying Underutilized Columns in Your PostgreSQL Database Keeping your PostgreSQL database clean and efficient is crucial for optimal performance. One way to achieve this is by identifying and potentially removing "useless" columns – those that hold minimal or redundant data. This article explores a PostgreSQL code …