A Preview of Coming Features in PostgreSQL 10
While PostgreSQL continues to progress towards its tenth major release in September 2017, EnterpriseDB chief architect and PostgreSQL contributor Robert Hass compiled a list of notable features that will likely make it into PostgreSQL 10 based on its official roadmap.
The PostgreSQL 10 roadmap, published a few months ago, is made of a number of individual roadmaps, each tied to a specific company or individual contributor. This does not make it very easy to get an overall picture of what is being worked on. A few of the features from Hass’ selection are:
Table partitioning, which can be seen as a simplified version of table inheritance where the parent table is always empty and child tables, the partitions, have an implicit constraint that affect which partition will effectively have a tuple added when this is inserted into the parent. It is hoped that table partitioning will make it easier than it is when using inheritance to reason about a table’s properties and thus enable specific optimizations.
Logical replication, which PostgreSQL will provide as an alternative to physical replication while being more flexible and easy to configure.
Improved parallel query, which should provide a 2–4x speedup on many queries.
There is a lot more going on about PostgreSQL 10, though, as 2ndQuadrant founder & CEO Simon Riggs explained in a recent talk. Including information from the official PostgreSQL 10 roadmap, work is being done on features such as:
- Autonomous transactions
- Multimaster cluster with sharding to improve scalability and availability
- JIT-compilation of queries
- Pluggable storage engine (columnar, in-memory, etc)
- Page-level data compression, and more
- Improved temporary table performance
The list of features that will go into PostgreSQL 10 is not defined yet however, so the compilation above provides just a general picture. InfoQ will keep reporting on this as new detailed information becomes available.