merge

   (cd gemini && aclocal && autoheader && aclocal && automake && autoconf)

fi

CFLAGS=\"$cflags\" CXX=$CXX CXXFLAGS=\"$cxxflags\" $configure"

CFLAGS=\"$cflags\" CXX=\"$CXX\" CXXFLAGS=\"$cxxflags\" CXXLDFLAGS=\"$CXXLDFLAGS\" \

$configure"

if [ -z "$just_configure" ]

then

# Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB

#

# This library is free software; you can redistribute it and/or

# modify it under the terms of the GNU Library General Public

# License as published by the Free Software Foundation; either

# version 2 of the License, or (at your option) any later version.

#

# This library is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# Library General Public License for more details.

#

# You should have received a copy of the GNU Library General Public

# License along with this library; if not, write to the Free

# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,

# MA 02111-1307, USA

## Process this file with automake to create Makefile.in

EXTRA_DIST =		FINISH.sh \

			SETUP.sh \

			compile-alpha \

			compile-alpha-ccc \

			compile-alpha-cxx \

			compile-alpha-debug \

			compile-ia64-debug-max \

			compile-pentium \

			compile-pentium-debug \

			compile-pentium-debug-max \

			compile-pentium-debug-no-bdb \

			compile-pentium-debug-openssl \

			compile-pentium-gcov \

			compile-pentium-gprof \

			compile-pentium-max \

			compile-pentium-myodbc \

			compile-pentium-mysqlfs-debug \

			compile-pentium-pgcc \

			compile-pentium-symbols \

			compile-solaris-sparc \

			compile-solaris-sparc-debug \

			compile-solaris-sparc-fortre \

			compile-solaris-sparc-purify

# Don't update the files from bitkeeper

%::SCCS/s.%

if gcc -v 2>&1 | grep 'version 3' > /dev/null 2>&1

then

  CXX=c++

  CXX="gcc -DUSE_MYSYS_NEW"

  CXXLDFLAGS="-Wl,--defsym -Wl,__cxa_pure_virtual=0"

else

  CXX=gcc

  CXXLDFLAGS=""

fi

scheme of the MySQL software, where besides the GPL license also commercial

licensing is available for those not wishing to be bound by the GPL.

The embedded MySQL library uses the same interface as the normal

client library, so it is convenient and easy to use.

client library, so it is convenient and easy to use. @xref{libmysqld}.

@node Nutshell Other features, Nutshell Future features, Nutshell Embedded MySQL, MySQL 4.0 In A Nutshell

@itemize @bullet

@item

@code{SHOW INDEX} has 2 columns more (@code{Null} and @code{Index_type})

than it had in 3.23.

@item

@code{SIGNED} is a reserved word.

@item

To use @code{MATCH ... AGAINST (... IN BOOLEAN MODE)} with your tables,

you need to rebuild them with @code{ALTER TABLE table_name TYPE=MyISAM},

@strong{even} if they are of @code{MyISAM} type.

@item @strong{Filename} @tab @strong{Purpose}

@item @code{windows-system-directory\my.ini} @tab Global options

@item @code{C:\my.cnf} @tab Global options

@item @code{C:\mysql\data\my.cnf} @tab Server-specific options

@end multitable

Note that on Windows, you should specify all paths with @code{/} instead of

@item @code{Sub_part}            @tab Number of indexed characters if the 

                                      column is only partly indexed. 

                                      @code{NULL} if the entire key is indexed.

@item @code{Null}		 $tab Contains 'YES' if the column may contain @code{NULL}.

@item @code{Index_type}		 @tab Index method used.

@item @code{Comment}             @tab Various remarks.  For now, it tells 

                                      whether index is FULLTEXT or not.

in MySQL < 4.0.2 whether index is @code{FULLTEXT} or not.

@end multitable

Note that as the @code{Cardinality} is counted based on statistics

stored as integers, it's not necessarily accurate for small tables.

The @code{Null} and @code{Index_type} column was added in MySQL 4.0.2.

@node SHOW TABLE STATUS, SHOW STATUS, SHOW DATABASE INFO, SHOW

@subsubsection @code{SHOW TABLE STATUS}

@cindex threads, display

@cindex processes, display

@code{SHOW PROCESSLIST} shows you which threads are running.  You can

@code{SHOW [FULL] PROCESSLIST} shows you which threads are running.  You can

also get this information using the @code{mysqladmin processlist}

command.  If you have the @strong{process} privilege, you can see all

threads.  Otherwise, you can see only your own threads.  @xref{KILL, ,

You can find the MySQL-max binaries at

@uref{http://www.mysql.com/downloads/mysql-max-3.23.html}.

The Windows MySQL 3.23 binary distribution includes both the

The Windows MySQL binary distributions includes both the

standard @code{mysqld.exe} binary and the @code{mysqld-max.exe} binary.

@uref{http://www.mysql.com/downloads/mysql-3.23.html}.

@xref{Windows installation}.

@menu

* Arithmetic functions::        Arithmetic Operations

* Mathematical functions::      Mathematical Functions

* Numerical casts::             

@end menu

@end table

@node Mathematical functions,  , Arithmetic functions, Numeric Functions

@node Mathematical functions, Numerical casts, Arithmetic functions, Numeric Functions

@subsubsection Mathematical Functions

All mathematical functions return @code{NULL} in case of an error.

10.2799999999999999.

@end table

@node Numerical casts,  , Mathematical functions, Numeric Functions

@subsubsection Casting numbers to signed / unsigned

@cindex casts, SIGNED

@cindex casts, UNSIGNED

To cast a string to a numeric value, you don't have to do anything; Just

use the string value as it would be a number:

@example

mysql> select 1+'1';

        -> 2

@end example

MySQL support arithmetic with both signed and unsigned 64 bit values.

If you are using an numerical operations (like @code{+}) and one of the

operands are @code{unsigned}, then the result will be unsigned.  You can

override this by using the @code{SIGNED} and @code{UNSIGNED} cast

operators, which will cast the operation to signed respective unsigned

64 bit integer.

@example

mysql> select UNSIGNED 1-2;

        -> 18446744073709551615

mysql  select SIGNED (UNSIGNED 1-2);

        -> -1

@end example

@code{SIGNED} and @code{UNSIGNED} where added in MySQL 4.0.2.

@node Date and time functions, Other Functions, Numeric Functions, Functions

@subsection Date and Time Functions

@item UNIX_TIMESTAMP()

@itemx UNIX_TIMESTAMP(date)

If called with no argument, returns a Unix timestamp (seconds since

@code{'1970-01-01 00:00:00'} GMT). If @code{UNIX_TIMESTAMP()} is called with

a @code{date} argument, it returns the value of the argument as seconds since

@code{'1970-01-01 00:00:00'} GMT.  @code{date} may be a @code{DATE} string,

a @code{DATETIME} string, a @code{TIMESTAMP}, or a number in the format

@code{'1970-01-01 00:00:00'} GMT) as an unsigned integer. If

@code{UNIX_TIMESTAMP()} is called with a @code{date} argument, it

returns the value of the argument as seconds since @code{'1970-01-01

00:00:00'} GMT.  @code{date} may be a @code{DATE} string, a

@code{DATETIME} string, a @code{TIMESTAMP}, or a number in the format

@code{YYMMDD} or @code{YYYYMMDD} in local time:

@example

@end example

When @code{UNIX_TIMESTAMP} is used on a @code{TIMESTAMP} column, the function

will receive the value directly, with no implicit

will return the internal timestamp value directly, with no implicit

``string-to-unix-timestamp'' conversion.

If you give @code{UNIX_TIMESTAMP()} a wrong or out-of-range date, it will

return 0.

If you want to subtract @code{UNIX_TIMESTAMP()} columns,

@xref{Numerical casts}.

@findex FROM_UNIXTIME()

@item FROM_UNIXTIME(unix_timestamp)

Returns a representation of the @code{unix_timestamp} argument as a value in

No stack trace on core dump.

@item

No internal RAID support.

@item

You can set this up as a server or a master (no replication).

@item

You can't connect to the embedded server from an outside process with

sockets or TCP/IP.

@end itemize

Some of these limitations can be changed by editing the @file{mysql_embed.h}

@node libmysqld options, libmysqld TODO, libmysqld restrictions, libmysqld

@subsubsection Using Option Files with the Embedded Server

@cindex defaults, embedded

The following is the recommended way to use option files to make it easy

to switch between a client/server application and one where MySQL is

embedded. @xref{Option files}.

@menu

* UDF calling::                 UDF Calling Sequences

* UDF aggr. calling::           UDF Calling Sequences for aggregate functions

* UDF aggr. calling ::          

* UDF arguments::               Argument Processing

* UDF return values::           Return Values and Error Handling

* UDF compiling::               Compiling and Installing User-definable Functions

@cindex changes, version 4.0

@menu

* News-4.0.2::                  Changes in release 4.0.2

* News-4.0.1::                  Changes in release 4.0.1

* News-4.0.0::                  Changes in release 4.0.0

@end menu

@node News-4.0.1, News-4.0.0, News-4.0.x, News-4.0.x

@node News-4.0.2, News-4.0.1, News-4.0.x, News-4.0.x

@appendixsubsec Changes in release 4.0.2

@itemize @bullet

@item

Added cast functions @code{SIGNED} and @code{UNSIGNED}.

@item

Changed order of how keys are created in tables.

@item

Added a new columns @code{Null} and @code{Index_type} to @code{SHOW INDEX}.

@end itemize

@node News-4.0.1, News-4.0.0, News-4.0.2, News-4.0.x

@appendixsubsec Changes in release 4.0.1

@itemize @bullet

@appendixsubsec Changes in release 3.23.47

@itemize @bullet

@item

Fixed in when using the following construct:

@code{SELECT ... WHERE key=@@var_name OR $key=@@var_name2}

@item

Restrict InnoDB keys to 500 bytes.

@item

InnoDB now supports @code{NULL} in keys.

@item

Fixed shutdown problem on HPUX. (Introduced in 3.23.46)

@item

Added 'DO expression' command.

@item

Fixed core-dump bug in replication when using SELECT RELEASE_LOCK();

@item

Added new statement DO expression,[expression].

Added new command: @code{DO expression,[expression]}

@item

Added @code{slave-skip-errors} option

@item

			COPYING COPYING.LIB MIRRORS

SUBDIRS =		include @docs_dirs@ @readline_dir@ \

			@thread_dirs@ pstack @sql_client_dirs@ \

			@sql_server_dirs@ @libmysqld_dirs@ scripts tests man \

			@sql_server_dirs@ @libmysqld_dirs@ scripts man \

			tests BUILD \

			@bench_dirs@ support-files @fs_dirs@ @tools_dirs@

# Relink after clean