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PostgreSQL 9.1.5

PostgreSQL

PostgreSQL 9.1.5

PostgreSQL Global Development Group
免費軟體

在mysql開始針對特定功能開始收費之後，postgresql立即被免費軟體開發解決方案，樹立免費資料庫軟體優秀領導品牌之一。

  • 短小的檔案與不佔系統記憶體，適合中小企業自行架設網站。
  • 開放原始碼解決方案。
  • 雖然免費，但功能強大。
  • 屬於關聯式資料庫系統，超過十五年的發展歷史。
  • 系統架構經過驗證符合可靠度與正確性的嚴格要求。
  • 可以在大部分主要的作業系統上運行。如Linux, UNIX (AIX, BSD, HP-UX, SGI IRIX, Mac OS X, Solaris, Tru64), 與Windows。
  • 支援大部分的SQL資料型別，包含INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, 與TIMESTAMP。
  • 支援大部分的SQL二進位資料型別，包含圖片、聲音與影像。
  • 具原生程式設計介面，如C/C++, Java, .Net, Perl, Python, Ruby, Tcl, ODBC等等。

軟體資訊
檔案版本 PostgreSQL 9.1.5
檔案名稱 postgresql-9.1.5-1-windows.exe
檔案大小 46.26MB
系統 Windows (All Versions)
支援語系 Multiple languages
軟體類型 免費軟體
更新日期 2012-08-20
更新日誌

# Changes
* Prevent access to external files/URLs via XML entity references
* Prevent access to external files/URLs via contrib/xml2's xslt_process()
* Prevent too-early recycling of btree index pages
* Fix crash-safety bug with newly-created-or-reset sequences
* Fix race condition in enum-type value comparisons
* Fix txid_current() to report the correct epoch when not in hot standby
* Prevent selection of unsuitable replication connections as the synchronous standby
* Fix bug in startup of Hot Standby when a master transaction has many subtransactions
* Ensure the backup_label file is fsync'd after pg_start_backup()
* Fix timeout handling in walsender processes
* Wake walsenders after each background flush by walwriter
* Fix LISTEN/NOTIFY to cope better with I/O problems, such as out of disk space
* Only allow autovacuum to be auto-canceled by a directly blocked process
* Improve logging of autovacuum cancels
* Fix log collector so that log_truncate_on_rotation works during the very first log rotation after server start
* Fix WITH attached to a nested set operation (UNION/INTERSECT/EXCEPT)
* Ensure that a whole-row reference to a subquery doesn't include any extra GROUP BY or ORDER BY columns
* Fix dependencies generated during ALTER TABLE ... ADD CONSTRAINT USING INDEX
* Fix REASSIGN OWNED to work on extensions
* Disallow copying whole-row references in CHECK constraints and index definitions during CREATE TABLE
* Fix memory leak in ARRAY(SELECT ...) subqueries
* Fix planner to pass correct collation to operator selectivity estimators
* Fix extraction of common prefixes from regular expressions
* Fix bugs with parsing signed hh:mm and hh:mm:ss fields in interval constants
* Fix pg_dump to better handle views containing partial GROUP BY lists
* In PL/Perl, avoid setting UTF8 flag when in SQL_ASCII encoding
* Use Postgres' encoding conversion functions, not Python's, when converting a Python Unicode string to the server encoding in PL/Python
* Fix mapping of PostgreSQL encodings to Python encodings in PL/Python
* Report errors properly in contrib/xml2's xslt_process()
* Update time zone data files to tzdata release 2012e for DST law changes in Morocco and Tokelau
作者 PostgreSQL Global Development Group
官網 暫無資訊

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