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Download PostgreSQL 9.1.5

PostgreSQL 9.1.5

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PostgreSQL is a powerful, open source object-relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness.

It is fully ACID compliant, has full support for foreign keys, joins, views, triggers, and stored procedures (in multiple languages). It includes most SQL:2008 data types, including INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and TIMESTAMP.

Title: PostgreSQL 9.1.5
Filename: postgresql-9.1.5-1-windows.exe
File size: 46.26MB (48,509,408 bytes)
Requirements: Windows (All Versions)
Languages: Multiple languages
License: Freeware
Date added: August 20, 2012
Author: PostgreSQL Global Development Group
MD5 Checksum: 0E74DAFAEA3B125C0BBE425D4D176FEB

# 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