Portability fixes.

or

undefined reference to `dlopen'

or

cannot find -lrt

@end example

If too many processes try to connect very rapidly to @code{mysqld}, you will

will be logged to the slow query logfile. @xref{Slow query log}.

@item @code{lower_case_table_names}

If set to 1 table names are stored in lowercase on disk. This will enable

you to access the table names case-insensitive also on Unix.

If set to 1 table names are stored in lowercase on disk and table

names will be case-insensitive.

@xref{Name case sensitivity}.

@item @code{max_allowed_packet}

You should also get and apply the Microsoft Jet 4.0 Service Pack 5 (SP5)

which can be found here

@uref{http://support.microsoft.com/support/kb/articles/Q 239/1/14.ASP}.

This will fix some cases where columns are marked as @code{#deleted#}

in Access.

Note that if you are using MySQL Version 3.22, you must to apply the

MDAC patch and use MyODBC 2.50.32 or 2.50.34 and above to go around

to start the server with the @code{--set-variable=max_allowed_packet=16M}

option.

You can also get strange problems with large packets if you are using

big blobs, but you haven't given @code{mysqld} access to enough memory

to handle the query.  If you suspect this is the case, try adding

@code{ulimit -d 256000} to the beginning of the @code{safe_mysqld} script

and restart @code{mysqld}.

@node Communication errors, Full table, Packet too large, Common errors

@appendixsubsec Communication Errors / Aborted Connection

@item

Faulty Ethernets or hubs or switches, cables ... This can be diagnosed

properly only by replacing hardware.

@item

@code{max_allowed_packet} is too small or queries require more memory

than you have alloacated for @code{mysqld}. @xref{Packet too large}.

@end itemize

Perl program to convert Oracle databases to MySQL. Has same

output format as mysqldump. By Johan Andersson.

@item @uref{http://www.mysql.com/Downloads/Contrib/excel2mysql, excel2mysql}

@item @uref{http://www.mysql.com/Downloads/Contrib/excel2mysql.pl, excel2mysql.pl}

Perl program to import Excel spreadsheets into a MySQL database. By Stephen Hurd @email{shurd@@sk.sympatico.ca}

@item @uref{http://www.mysql.com/Downloads/Contrib/T2S_100.ZIP, T2S_100.ZIP}.

@appendixsubsec Changes in release 3.23.42

@itemize @bullet

@item

Fixed problem with InnoDB when one could get the error @code{Can't

execute the given command...} even when one didn't have an active

transaction.

@item

Applied some fixes for Gemini.

@item

Use real arithmetic operations even in integer context if not

all arguments are integers. (Fixes uncommon bug in some integer

context).

@item

Don't force everything to lower cases on windows. (To fix problem

with windows and @code{ALTER TABLE}).

with windows and @code{ALTER TABLE}).  Now @code{--lower_case_names}

also works on Unix.

@item

Fixed that automatic rollback that is done when thread end doesn't lock

other threads.

@end itemize

@node News-3.23.41, News-3.23.40, News-3.23.42, News-3.23.x

@code{mysqld --debug}

On Windows you should also use the @code{--standalone} flag to not start

@code{mysqld} as a service.

Note that the trace file will get very @emph{BIG}!

@code{mysqld} as a service:

In a DOS window do:

@example

mysqld --debug --standalone

@end example

After this you can use the @code{mysql.exe} command line tool in a

second DOS window to reproduce the problem. You can take down the above

@code{mysqld} server with @code{mysqladmin shutdown}.

Note that the trace file will get very @emph{BIG}!

If you want to have a smaller trace file, you can use something like:

@code{mysqld --debug=d,info,error,query,general,where:O,/tmp/mysqld.trace}

// needed by net_serv.c

ulong bytes_sent = 0L, bytes_received = 0L;

ulong mysqld_net_retry_count = 10L;

ulong net_read_timeout=  NET_READ_TIMEOUT;

ulong net_write_timeout= NET_WRITE_TIMEOUT;

uint test_flags = 0; 

FILE *result_file;

 getrusage getpwuid getcwd getrlimit getwd index stpcpy locking longjmp \

 perror pread realpath readlink rename \

 socket strnlen madvise mkstemp \

 strtol strtoul strtoull snprintf tempnam thr_setconcurrency \

 strtol strtoul strtoll strtoull snprintf tempnam thr_setconcurrency \

 gethostbyaddr_r gethostbyname_r getpwnam \

 bfill bzero bcmp strstr strpbrk strerror \

 tell atod memcpy memmove \

#include <netdb.h>],

[int skr;

 skr = gethostbyname_r((const char *) 0, (struct hostent*) 0, (hostent_data*) 0);],

 skr = gethostbyname_r((const char *) 0, (struct hostent*) 0, (struct hostent_data*) 0);],

mysql_cv_gethostname_arg=hostent_data, mysql_cv_gethostname_arg=char))

AC_LANG_RESTORE

CXXFLAGS="$ac_save_CXXFLAGS"

commit;

select * from t1;

drop table t1;

#

# Test of active transactions

#

create table t1 (a integer) type=innodb;

begin;

rename table t1 to t2;

create table t1 (b integer) type=innodb;

insert into t1 values (1);

rollback;

drop table t1;

rename table t2 to t1;

drop table t1;

set autocommit=1;

#

  ulonglong id = 0;

  ulong length=get_length(from);

  if (length)

    longlongget(id, from+packlength);

    uint8korr(id, from+packlength);

  return id;

}