Log Message:
postgresql14: added version 14.0

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.