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release of PostgreSQL 9.5.
This release adds UPSERT capability, Row Level Security,
and multiple Big Data features, which will broaden the
user base for the world's most advanced database.
With these new capabilities, PostgreSQL will be
the best choice for even more applications for startups,
large corporations, and government agencies.
Release Notes:
http://www.postgresql.org/docs/current/static/release-9-5.html
What's New in 9.5:
https://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_9.5
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After many years of development, PostgreSQL has become feature-complete in many areas.
This release shows a targeted approach to adding features (e.g., authentication,
monitoring, space reuse), and adds capabilities defined in the later SQL standards.
The major areas of enhancement are:
Windowing Functions
Common Table Expressions and Recursive Queries
Default and variadic parameters for functions
Parallel Restore
Column Permissions
Per-database locale settings
Improved hash indexes
Improved join performance for EXISTS and NOT EXISTS queries
Easier-to-use Warm Standby
Automatic sizing of the Free Space Map
Visibility Map (greatly reduces vacuum overhead for slowly-changing tables)
Version-aware psql (backslash commands work against older servers)
Support SSL certificates for user authentication
Per-function runtime statistics
Easy editing of functions in psql
New contrib modules: pg_stat_statements, auto_explain, citext, btree_gin
URL: http://www.postgresql.org/docs/8.4/interactive/release-8-4.html
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