Table of Contents [+/-]
This is the Reference Manual for the MySQL Database System, version
5.1, through release 5.1.47. For license
information, see the legal
notice. Differences between minor versions of MySQL
5.1 are noted in the present text with reference to
release numbers (5.1.x).
This manual is not intended for use with older versions of the MySQL software due to the many functional and other differences between MySQL 5.1 and previous versions. If you are using an earlier release of the MySQL software, please refer to the appropriate manual. For example, MySQL 5.0 Reference Manual, covers the 5.0 series of MySQL software releases.
If you are using MySQL 5.4, please refer to the MySQL 5.4 Reference Manual.
The following is a list of the creators of the libraries we have included with the MySQL server source to make it easy to compile and install MySQL. We are thankful to all individuals that have created these. Some of these libraries require that their licensing terms be included in the documentation of products that include them. Cross references to these licensing terms are given with the applicable items in the list.
Fred Fish
For his excellent C debugging and trace library. Monty has made a number of smaller improvements to the library (speed and additional options).
Richard A. O'Keefe
For his public domain string library.
Henry Spencer
For his regex library, used for
REGEXP operations. License:
Section 1, “regex Library License”
Jean-loup Gailly and Mark Adler
For the zlib library, used on MySQL on
Windows and on platforms where the host zlib
is too old.
Bjorn Benson
For his safe_malloc (memory checker) package which is used in
when you build MySQL using one of the
BUILD/compile-*-debug scripts or by manually
setting the -DSAFEMALLOC flag.
Free Software Foundation
The readline library, used by the
mysql command-line client.
The NetBSD Foundation
The libedit library, optionally used by the
mysql command-line client.
libedit is used for commercial builds because
readline is covered under the GPL. License:
Section 2, “libedit License”

User Comments
Noticed that YaSSL is not mentioned on this page.
Btw, is this supposed to be a definitive list of 3rd party modules used in MySQL or only mentioning those that need to be mentioned to satisfy license requirements?
Add your own comment.