MySQL 5.1.54

MySQL Community Edition is a freely downloadable version of the world's most popular open source database that is supported by an active community of open source developers and enthusiasts.

MySQL delivers enterprise features, including:

* Partitioning to improve performance and management of very large database environments
* Row-based/Hybrid Replication for improved replication security
* Event Scheduler to create and schedule jobs that perform various database tasks
* XPath Support
* Dynamic General/Slow Query Log
* Performance/Load Testing Utility (mysqlslap)
* Improved! Full Text Search (faster, new dev templates)
* Improved! Archive engine (better compression, more features)
* Improved! User session and problem SQL identification
* Improved! MySQL embedded library (libmysqld)
* Additional INFORMATION_SCHEMA objects
* Faster data import operations (parallel file load)
* ACID Transactions to build reliable and secure business critical applications
* Stored Procedures to improve developer productivity
* Triggers to enforce complex business rules at the database level
* Views to ensure sensitive information is not compromised
* Information Schema to provide easy access to metadata
* Pluggable Storage Engine Architecture for maximum flexibility
* Archive Storage Engine for historical and audit data

Title: MySQL 5.1.54
Filename: mysql-essential-5.1.54-win32.msi
File size: 38.86MB (40,748,032 bytes)
Requirements: Windows 9x / 2000 / XP / 2003 / Vista / Windows7
Languages: en-US
License: Open Source
Date added: December 15, 2010
Author: MySQL AB
www.mysql.com

Change Log:

# Functionality added or changed:

* Support for the IBMDB2I storage engine has been removed.
* The pstack library was nonfunctional and has been removed, along with the --with-pstack option for configure. The --enable-pstack option for mysqld is deprecated and will be removed in MySQL 5.5.

# Bugs fixed:

* Performance: InnoDB Storage Engine: Improved concurrency when several ANALYZE TABLE or SHOW TABLE STATUS statements are run simultaneously for InnoDB tables.
* InnoDB Storage Engine: For an InnoDB table created with ROW_FORMAT=COMPRESSED or ROW_FORMAT=DYNAMIC, a query using the READ UNCOMMITTED isolation level could cause the server to stop with an assertion error, if BLOB or other large columns that use off-page storage were being inserted at the same time.
* Partitioning: An INSERT ... ON DUPLICATE KEY UPDATE column = 0 statement on an AUTO_INCREMENT column caused the debug server to crash.
* Several compilation problems were fixed.
* Passing a string that was not null-terminated to UpdateXML() or ExtractValue() caused the server to fail with an assertion.
* Queries executed using the Index Merge access method and a temporary file could return incorrect results.
* The find_files() function used by SHOW statements performed redundant and unnecessary memory allocation.