Log Message:
postgresql17: added version 17.0

PostgreSQL 17 builds on decades of open source development, improving its
performance and scalability while adapting to emergent data access and storage
patterns. This release of PostgreSQL adds significant overall performance
gains, including an overhauled memory management implementation for vacuum,
optimizations to storage access and improvements for high concurrency
workloads, speedups in bulk loading and exports, and query execution
improvements for indexes. PostgreSQL 17 has features that benefit brand new
workloads and critical systems alike, such as additions to the developer
experience with the SQL/JSON JSON_TABLE command, and enhancements to logical
replication that simplify management of high availability workloads and major
version upgrades.