First draft of PostgreSQL 13 press release

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+The PostgreSQL Global Development Group today announced the release of
+[PostgreSQL 13](https://www.postgresql.org/docs/13/release-13.html), the latest
+version of the world’s [most advanced open source database](https://www.postgresql.org/).
+
+With highly requested features like [parallelized vacuuming](https://www.postgresql.org/docs/13/sql-vacuum.html)
+and [incremental sorting](https://www.postgresql.org/docs/13/runtime-config-query.html#GUC-ENABLE-INCREMENTAL-SORT),
+PostgreSQL 13 provides performance gains, daily administration optimizations,
+more conveniences for application developers, and security enhancements.
+PostgreSQL 13 includes significant improvements to its indexing and lookup
+system, including enhancements to queries with aggregates as well as partitions.
+
+<Quote from Core Team member>
+
+[PostgreSQL](https://www.postgresql.org), an innovative data management system
+known for its reliability and robustness, benefits from over 20 years of open
+source development from a [global developer community](https://www.postgresql.org/community/)
+and has become the preferred open source relational database for organizations
+of all sizes.
+
+### Continued Performance Gains
+
+Building on work from the previous PostgreSQL release, PostgreSQL 13 can
+efficiently handle [duplicate data in B-tree indexes](https://www.postgresql.org/docs/13/btree-implementation.html#BTREE-DEDUPLICATION),
+the standard database index. This lowers the overall space usage that B-tree
+indexes require while improving overall query performance.
+
+PostgreSQL 13 introduces incremental sorting, where sorted data from an earlier
+step in a query can accelerate sorting at a later step. Additionally, PostgreSQL
+can now use the [extended statistics](https://www.postgresql.org/docs/13/planner-stats.html#PLANNER-STATS-EXTENDED)
+system (accessed via [`CREATE STATISTICS`](https://www.postgresql.org/docs/13/sql-createstatistics.html))
+to create improved plans for queries with `OR` clauses and `IN`/`ANY` lookups
+over lists.
+
+In PostgreSQL 13, more types of [aggregate](https://www.postgresql.org/docs/13/functions-aggregate.html)
+and [grouping set](https://www.postgresql.org/docs/13/queries-table-expressions.html#QUERIES-GROUPING-SETS)
+queries can leverage PostgreSQL’s efficient hash aggregation functionality, as
+queries with large aggregates do not have to fit entirely into memory. Queries
+with [partitioned tables](https://www.postgresql.org/docs/13/ddl-partitioning.html)
+have received a performance boost, as there are now more cases where partitions
+can be pruned and where partitions can be directly joined.
+
+### Administration Optimizations
+
+[Vacuuming](https://www.postgresql.org/docs/13/routine-vacuuming.html) is an
+essential part of PostgreSQL administration, enabling the database to reclaim
+storage space after rows are updated and deleted. This process can also present
+administrative challenges, though prior PostgreSQL releases have done work to
+ease the overhead of vacuuming.
+
+PostgreSQL 13 continues to improve the vacuuming system with the introduction of
+[parallelized vacuum for indexes](https://www.postgresql.org/docs/13/sql-vacuum.html).
+In addition to the vacuuming performance benefits it offers, the use of this new
+feature can be tuned to specific workloads as administrators can select the
+number of parallel workers to run.
+
+PostgreSQL 13 also adds more ways an administrator can monitor database
+activity, including tracking WAL usage statistics, the progress of streaming
+base backups, and the progress of the `ANALYZE` commands. Additionally, the
+integrity of the output of the [`pg_basebackup`](https://www.postgresql.org/docs/13/app-pgbasebackup.html)
+command can be checked using the new [`pg_verifybackup`](https://www.postgresql.org/docs/13/app-pgverifybackup.html)
+command.
+
+### Application Development Conveniences
+
+PostgreSQL 13 makes it even easier to work with PostgreSQL data types coming
+from different data sources. This release adds the [`datetime()`](https://www.postgresql.org/docs/13/functions-json.html#FUNCTIONS-SQLJSON-OP-TABLE)
+function to its SQL/JSON path support, which converts valid time formats (e.g.
+ISO 8601 strings) to PostgreSQL-native types. Additionally, the UUID v4
+generation function, [`gen_random_uuid()`](https://www.postgresql.org/docs/13/functions-uuid.html),
+is now available without having to install any extensions.
+
+PostgreSQL’s partitioning system is more flexible, as partitioned tables now
+work BEFORE row-level triggers in addition to fully supporting logical
+replication.
+
+### Security Enhancements
+
+PostgreSQL’s extension system is a key component of its robustness as it allows
+developers to expand its functionality. In previous releases, new extensions
+could only be installed by a database superuser. To make it easier to take
+advantage of PostgreSQL’s extensibility, PostgreSQL 13 adds the concept of a
+"[trusted extension](https://www.postgresql.org/docs/13/sql-createextension.html),"
+which allows database users to install extensions that a superuser marks as
+"trusted."
+
+For applications that require secure authentication methods, PostgreSQL 13
+allows for clients to [require channel binding](https://www.postgresql.org/docs/13/libpq-connect.html#LIBPQ-CONNECT-CHANNEL-BINDING)
+when using [SCRAM authentication](https://www.postgresql.org/docs/13/sasl-authentication.html#SASL-SCRAM-SHA-256),
+and the PostgreSQL foreign data wrapper ([`postgres_fdw`](https://www.postgresql.org/docs/13/postgres-fdw.html))
+can now use certificate-based authentication.
+
+### About PostgreSQL
+
+[PostgreSQL](https://www.postgresql.org) is the world's most advanced open
+source database, with a global community of thousands of users, contributors,
+companies and organizations. Built on over 30 years of engineering, starting at
+the University of California, Berkeley, PostgreSQL has continued with an
+unmatched pace of development. PostgreSQL's mature feature set not only matches
+top proprietary database systems, but exceeds them in advanced database
+features, extensibility, security, and stability.
+
+### Press Release Translations
+
+* TBD
+
+### Links
+
+* [Download](https://www.postgresql.org/download/)
+* [Release Notes](https://www.postgresql.org/docs/13/release-13.html)
+* [Press Kit](https://www.postgresql.org/about/press/)
+* [Security Page](https://www.postgresql.org/support/security/)
+* [Versioning Policy](https://www.postgresql.org/support/versioning/)
+* [Follow @postgresql on Twitter](https://twitter.com/postgresql)