redo some changes lost after I messed up local repository

@cindex PostgreSQL vs. MySQL, features

On the crash-me page

On the @code{crash-me} page

(@uref{http://www.mysql.com/information/crash-me.php})

you can find a list of those database constructs and limits that

one can detect automatically with a program.  Note, however, that a lot of

@item

Included in the MySQL distribution are two different testing suites,

@file{mysql-test-run} and crash-me

@file{mysql-test-run} and @code{crash-me}

(@uref{http://www.mysql.com/information/crash-me.php}), as well

as a benchmark suite.  The test system is actively updated with code to

test each new feature and almost all reproduceable bugs that have come to

To make a complex application portable you need to choose a number of

SQL servers that it should work with.

You can use the MySQL crash-me program/web-page

You can use the MySQL @code{crash-me} program/web-page

@uref{http://www.mysql.com/information/crash-me.php} to find functions,

types, and limits you can use with a selection of database

servers. Crash-me now tests far from everything possible, but it

For example, you shouldn't have column names longer than 18 characters

if you want to be able to use Informix or DB2.

Both the MySQL benchmarks and crash-me programs are very

Both the MySQL benchmarks and @code{crash-me} programs are very

database-independent.  By taking a look at how we have handled this, you

can get a feeling for what you have to do to write your application

database-independent.  The benchmarks themselves can be found in the

How big a @code{VARCHAR} column can be

@end itemize

We can find the result from crash-me on a lot of different databases at

We can find the result from @code{crash-me} on a lot of different databases at

@uref{http://www.mysql.com/information/crash-me.php}.

Porting of @code{mSQL} tools like @code{msqlperl}, @code{DBD}/@code{DBI}, and

@code{DB2mysql}.

@item

Most of crash-me and the foundation for the MySQL benchmarks.

Most of @code{crash-me} and the foundation for the MySQL benchmarks.

@end itemize

@item David Axmark

@item

@code{mysqldump} -e option

@item

@code{LOAD DATA INFILE LOCAL}

@code{LOAD DATA LOCAL INFILE}

@item

@code{SQL_CALC_FOUND_ROWS} @code{SELECT} option

@item

@item

Our security expert.

@item

Vio interface (the foundation for the encrypted client/server protocol).

VIO interface (the foundation for the encrypted client/server protocol).

@item

MySQL Filesystem (a way to use MySQL databases as files

and directories).

@item

The CASE expression.

The @code{CASE} expression.

@item

The MD5() and COALESCE() functions.

The @code{MD5()} and @code{COALESCE()} functions.

@item

@code{RAID} support for @code{MyISAM} tables.

@end itemize

@itemize @bullet

@item

Fixed possible problem in replication when doing @code{DROP DATABASE} on a

database with InnoDB tables.

database with @code{InnoDB} tables.

@item

Fixed that @code{mysql_info()} returns 0 for 'Duplicates' when using

@code{INSERT DELAYED IGNORE}.

Fixed @code{mysql_info()} to return 0 for the 'Duplicates' value for

@code{INSERT DELAYED IGNORE} statements.

@end itemize

@node News-3.23.51, News-3.23.50, News-3.23.52, News-3.23.x

@itemize @bullet

@item

Remove end space from @code{enum} values. (This fixed a problem with

@code{SHOW CREATE TABLE}).

Remove end space from @code{ENUM} values. (This fixed a problem with

@code{SHOW CREATE TABLE}.)

@item

Fixed bug in @code{CONCAT_WS()} that cut the result.

@item

Changed name of variables @code{Com_show_master_stat} to

Changed name of server variables @code{Com_show_master_stat} to

@code{Com_show_master_status} and @code{Com_show_slave_stat} to

@code{Com_show_slave_status}.

@item

Changed handling of @code{gethostbyname()} to make the client library

threadsafe even if @code{gethostbyname_r} doesn't exists.

thread-safe even if @code{gethostbyname_r} doesn't exist.

@item

Fixed core-dump problem when giving a wrong password string to @code{GRANT}.

@item

Fixed bug in @code{DROP DATABASE} with symlinked directory.

@item

Fixed optimization problem with @code{DATETIME} and value outside

Fixed optimisation problem with @code{DATETIME} and value outside

@code{DATETIME} range.

@item

Removed BDB documentation.

@item

Fixed mit-pthreads to compile with glibc 2.2 (needed for @code{make dist}).

Fixed MIT-pthreads to compile with @code{glibc} 2.2 (needed for

@code{make dist}).

@item

Fixed the @code{FLOAT(X+1,X)} is not converted to @code{FLOAT(X+2,X)}.

(This also affected @code{DECIMAL}, @code{DOUBLE} and @code{REAL} types)

@item

Fixed the result from @code{IF()} is case in-sensitive if the 2 and

third arguments are case-sensitive.

Fixed the result from @code{IF()} is case in-sensitive if the second and

third arguments are case sensitive.

@item

Fixed core dump problem on OSF in @code{gethostbyname_r}.

Fixed core dump problem on OSF/1 in @code{gethostbyname_r}.

@item

Fixed that underflowed decimal fields is not zero filled.

Fixed that underflowed decimal fields are not zero filled.

@item

If we get an overflow when inserting @code{'+11111'} for

@code{decimal(5,0) unsigned} columns, we will just drop the sign.

@code{DECIMAL(5,0) UNSIGNED} columns, we will just drop the sign.

@item

Fixed optimization bug with @code{ISNULL(expression_which_cannot_be_null)} and

Fixed optimisation bug with @code{ISNULL(expression_which_cannot_be_null)} and

@code{ISNULL(constant_expression)}.

@item

Fixed host lookup bug in the glibc library that we used with the 3.23.50

Fixed host lookup bug in the @code{glibc} library that we used with the 3.23.50

Linux-x86 binaries.

@end itemize