The PostgreSQL International Improvement Group introduced the discharge of PostgreSQL 17, the latest model of the open supply database.
In response to the group’s announcement, PostgreSQL 17 has improved efficiency and scalability whereas adapting to new knowledge entry and storage patterns required by cloud native computing and the rise of AI.
Among the many key new options is enhanced assist for JSON, which was one of many causes customers started adopting the database. On this launch, the implementation of the SQL/JSON normal is generally full, in line with Tom Kincaid, SVP of Database Server Improvement at EDB, a serious contributor to the venture. “I feel one of many issues folks ask for probably the most is the implementation of JSON_TABLE, which allows you to take a JSON doc and make a view of it as a relational desk… it actually speaks to the extensibility of Postgres, but additionally the continued evolution in direction of making it simpler to undertake.”
PostgreSQL 17 now helps SQL/JSON constructors (JSON, JSON_SCALAR, JSON_SERIALIZE) and question capabilities (JSON_EXISTS, JSON_QUERY, JSON_VALUE), in line with the group’s announcement, giving builders different methods of interfacing with their JSON knowledge. This launch provides extra jsonpath expressions, with an emphasis of changing JSON knowledge to a local PostgreSQL knowledge sort, together with numeric, boolean, string, and date/time varieties, the group introduced.
Additional, in line with the group’s announcement, the brand new model brings extra options to MERGE, which is used for conditional updates. New capabilities embody a RETURNING clause and the flexibility to replace views., in addition to bulk loading and knowledge exporting, together with as much as a 2x efficiency enchancment when exporting giant rows utilizing the COPY command. “COPY efficiency additionally has enhancements when the supply and vacation spot encodings match, and features a new choice, ON_ERROR, that permits an import to proceed even when there’s an insert error,” the announcement stated.
One other key characteristic Kincaid identified is the addition of incremental backup. “Postgres databases will be 10s of terabytes, in some circumstances, 100 terabytes or extra, and having the ability to do a full backup on that would take a number of days, simply relying in your {hardware} and your structure and instruments,” he stated. “However now with incremental backup, you possibly can mix incremental backups right into a full backup, separate from the precise database server, so that you don’t need to put some in depth load in your database server to do a full backup.”
PostgreSQL 17 brings system-wide efficiency positive aspects and a extra sturdy developer expertise. Listed below are the launch notes for an entire record of latest and altered options.
