LZ4 and ZSTD pg_dump compression I wrote a “pg_dump compression specifications in PostgreSQL 16” post a while ago. Frankly speaking, I thought new compression methods would not be implemented in PostgreSQL until 2-3 years from now. Probably demand is so high that LZ4 and ZSTD made their way into PostgreSQL 16! The LZ4 patch author […]

SQL and numeric constants NEW in PostgreSQL 16 – support for underscores in integer and numeric constants! I already wrote about support for different notations in the upcoming PostgreSQL 16. This new major version also implements the SQL:202x standard (draft), allowing you to use underscore separators for integers and numeric constants. Using underscore separators in […]

Naming variables Why will force_parallel_mode – the runtime option be renamed to debug_parallel_query in PostgreSQL 16? Proper variable and function naming play a vital role in making code understandable, maintainable, and easily shareable. When we give our variables descriptive names that reflect their purpose, it becomes much simpler for others to understand our code, follow […]

Reserve connections for the pg_use_reserved_connections group in PostgreSQL 16 Nathan Bossart implemented a brand-new patch that provides a way to reserve connection slots for non-superusers. The patch was reviewed by Tushar Ahuja and Robert Haas. Committed by Robert Haas. The commit message is: Let’s try reserve connections in our work! Let’s edit the postgresql.conf file […]

SQL and integer notations NEW in PostgreSQL 16 – support for non-decimal notation of integer constants! PostgreSQL already has powerful support for string constants, with E’\t’, E’\011′, E’\u0009′ and U&’\0009′ all meaning the same thing (a “horizontal tab” character). However, PostgreSQL’s support for numerical constants has – up until now – been rather limited; it […]