Software Update: PostgreSQL 14

Version 14 of PostgreSQL was released a few days ago. This popular ‘open source relational database management system’ runs on a large number of operating systems and can therefore be used in various environments. It is a derivative of Ingres, after its lead developer started his own business and this open source database became closed source. Detailed information about the changes in version 14 can be this page are being found. The complete changelog is available herethese are in short the most important improvements:

PostgreSQL 14 contains many new features and enhancements, including:

• Stored procedures can now return data via OUT parameters.
• The SQL-standard SEARCH and CYCLE options for common table expressions have been implemented.
• Subscripting can now be applied to any data type for which it is a useful notation, not only arrays. In this release, the jsonb and hstore types have gained subscripting operators.
• Range types have been extended by adding multiranges, allowing representation of noncontiguous data ranges.
• Numerous performance improvements have been made for parallel queries, heavily-concurrent workloads, partitioned tables, logical replication, and vacuuming.
• B-tree index updates are managed more efficiently, reducing index bloat.
• VACUUM automatically becomes more aggressive, and skips inessential cleanup, if the database starts to approach a transaction ID wraparound condition.
• Extended statistics can now be collected on expressions, allowing better planning results for complex queries.
• libpq now has the ability to pipeline multiple queries, which can boost throughput over high-latency connections.