PostgreSQL (64-bit)

最新版本 PostgreSQL 9.0.0 (64-bit)

PostgreSQL 9.0.0 (64-bit)

PostgreSQL 9.0.0 (64-bit)
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軟體資訊
檔案版本 PostgreSQL 9.0.0 (64-bit)

檔案名稱 postgresql-9.0.0-1-windows_x64.exe
檔案大小 44.75 MB
系統 Windows XP64 / Vista64 / Windows 7 64 / Windows 8 64 / Windows 10 64
軟體類型 開源軟體
作者 PostgreSQL Global Development Group
官網 http://www.postgresql.org/about/
更新日期 2010-09-21
更新日誌

What's new in this version:

Major enhancements include: 
- Built-in replication based on log shipping. This advance consists of two features: Streaming Replication, allowing continuous archive (WAL) files to be streamed over a network connection to a standby server, and Hot Standby, allowing continuous archive standby servers to execute read-only queries. The net effect is to support a single master with multiple read-only slave servers.
- Easier database object permissions management. GRANT/REVOKE IN SCHEMA supports mass permissions changes on existing objects, while ALTER DEFAULT PRIVILEGES allows control of privileges for objects created in the future. Large objects (BLOBs) now support permissions management as well.
- Broadly enhanced stored procedure support. The DO statement supports ad-hoc or "anonymous" code blocks. Functions can now be called using named parameters. PL/pgSQL is now installed by default, and PL/Perl and PL/Python have been enhanced in several ways, including support for Python3.
- Full support for 64-bit Windows.
- More advanced reporting queries, including additional windowing options (PRECEDING and FOLLOWING) and the ability to control the order in which values are fed to aggregate functions.
- New trigger features, including SQL-standard-compliant per-column triggers and conditional trigger execution.
- Deferrable unique constraints. Mass updates to unique keys are now possible without trickery
- Exclusion constraints. These provide a generalized version of unique constraints, allowing enforcement of complex conditions.
- New and enhanced security features, including RADIUS authentication, LDAP authentication improvements, and a new contrib module passwordcheck for testing password strength.
- New high-performance implementation of the LISTEN/NOTIFY feature. Pending events are now stored in a memory-based queue rather than a table. Also, a "payload" string can be sent with each event, rather than transmitting just an event name as before.
- New implementation of VACUUM FULL. This command now rewrites the entire table and indexes, rather than moving individual rows to compact space. It is substantially faster in most cases, and no longer results in index bloat.
- New contrib module pg_upgrade to support in-place upgrades from 8.3 or 8.4 to 9.0.
- Multiple performance enhancements for specific types of queries, including elimination of unnecessary joins. This helps optimize some automatically-generated queries, such as those produced by object-relational mappers (ORMs).
- EXPLAIN enhancements. The output is now available in JSON, XML, or YAML format, and includes buffer utilization and other data not previously available.
- hstore improvements, including new functions and greater data capacity.

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