SQL Relay 0.39

SQL Relay is a persistent database connection pooling, proxying and load balancing system for Unix and Linux.
Main features:
SQL Relay is ideal for:
- speeding up database-driven web-based applications
- enhancing the scalability of database-driven web-based applications
- distributing access to replicated databases
- throttling database access
- accessing databases from unsupported platforms
- migrating applications from one database to another
SQL Relay supports the following database backends:
- Oracle
- MySQL
- mSQL
- PostgreSQL
- Sybase
- MS SQL Server
- IBM DB2
- Interbase
- Sybase
- SQLite
- ODBC
- MS Access
The SQL Relay client APIs support advanced database operations such as bind variables, multi-row fetches, client-side result set caching and suspended transactions. SQL Relay has native client APIs for the following languages:
- C
- C++
- Perl
- Python
- PHP
- Ruby
- Java
- TCL
- Zope
SQL Relay provides drivers for the following database abstraction layers:
- Perl DBD
- Python DB
- Ruby DBD
- PHP Pear DB
An application coded using another databases native client API may be able to use SQL Relay without modification. SQL Relay provides drop-in replacement libraries for:
- MySQL
- PostgreSQL
SQL Relay also features:
- command line clients
- a GUI configuration tool
- extensive documentation
Enhancements:
- Several contributed patches were applied.
- Oracle stability was improved.
- Support for Oracle OS-authentication was added.
- The maxlisteners option was added.
- Support for Sybase stored procedures which return result sets was added.
- A Zope empty-result set bug was fixed.
- Support for Mac OS X, Solaris, and Cygwin was improved.