manual.texi change note cleanups, 3.22.23 through 3.23.9.

@itemize @bullet

@item

Replication will be done correctly with @code{AUTO_INCREMENT},

@code{LAST_INSERT_ID}, and @code{TIMESTAMP} values.

@code{LAST_INSERT_ID()}, and @code{TIMESTAMP} values.

@item

@code{RAND()} in updates does not replicate properly. Use

@code{RAND(some_non_rand_expr)} if you are replicating updates with

the cache.

@item

When the cache contains more than @code{table_cache} entires and

a thread is not anymore using a table.

a thread is no longer using a table.

@item

When someone executes @code{mysqladmin refresh} or

@code{mysqladmin flush-tables}.

@item

Added command @code{REPAIR TABLE}.

@item

Added C API function @code{mysql_thread_safe()}.

Added @code{mysql_thread_safe()} function to the MySQL C API.

@item

Added the @code{UMASK_DIR} environment variable.

@item

Fixed bug in range optimiser when using many key parts and or on the middle

key parts:  @code{WHERE K1=1 and K3=2 and (K2=2 and K4=4 or K2=3 and K4=5)}

@item

Added command @code{source} to @code{mysql} to allow reading of batch files

Added @code{source} command to @code{mysql} to allow reading of batch files

inside the @code{mysql} client.  Original patch by Matthew Vanecek.

@item

Fixed critical problem with the @code{WITH GRANT OPTION} option.

Disabled floating-point exceptions for FreeBSD to fix core dump when

doing @code{SELECT floor(pow(2,63))}.

@item

Changed @code{mysqld} startup option @code{--delay-key-write} to

@code{--delay-key-write-for-all-tables}

Renamed @code{mysqld} startup option from @code{--delay-key-write} to

@code{--delay-key-write-for-all-tables}.

@item

Added @code{read-next-on-key} to @code{HEAP} tables.  This should fix all

problems with @code{HEAP} tables when using not @code{UNIQUE} keys.

problems with @code{HEAP} tables when using non-@code{UNIQUE} keys.

@item

Added print of default arguments options to all clients.

Added option to print default arguments to all clients.

@item

Added @code{--log-slow-queries} to @code{mysqld} to log all queries that take a

long time to a separate log file with a time of how long the query took.

long time to a separate log file with a time indicating how long the query took.

@item

Fixed core dump when doing @code{WHERE key_column=RAND(...)}

Fixed core dump when doing @code{WHERE key_column=RAND(...)}.

@item

Fixed optimisation bug in @code{SELECT ... LEFT JOIN ... key_column IS NULL},

when @code{key_column} could contain @code{NULL} values.

@item

Fixed problem with @code{MAX(indexed_column)} and HEAP tables.

@item

Fixed problem with @code{BLOB NULL} keys and @code{LIKE} "prefix%".

Fixed problem with @code{BLOB NULL} keys and @code{LIKE "prefix%"}.

@item

Fixed problem with @code{MyISAM} and fixed-length rows < 5 bytes.

@item

In @code{MyISAM} one can now do an @code{INSERT} at the same time as other

threads are reading from the table.

@item

Added variable @code{max_write_lock_count} to @code{mysqld} to force a

Added @code{max_write_lock_count} variable to @code{mysqld} to force a

@code{READ} lock after a certain number of @code{WRITE} locks.

@item

Inverted flag @code{delayed_key_write} on @code{show variables}.

@item

Renamed variable @code{concurrency} to @code{thread_concurrency}.

Renamed @code{concurrency} variable to @code{thread_concurrency}.

@item

The following functions are now multi-byte-safe:

@code{LOCATE(substr,str)}, @code{POSITION(substr IN str)},

@item

Added option @code{--verbose} to @code{mysqladmin}.

@item

Fixed problem when automatically converting HEAP to MyISAM.

Fixed problem when automatically converting @code{HEAP} to @code{MyISAM}.

@item

Fixed bug in HEAP tables when doing insert + delete + insert + scan the

Fixed bug in @code{HEAP} tables when doing insert + delete + insert + scan the

table.

@item

Fixed bugs on Alpha with @code{REPLACE()} and @code{LOAD DATA INFILE}.

@item

Added @code{mysqld} variable @code{interactive_timeout}.

Added @code{interactive_timeout} variable to @code{mysqld}.

@item

Changed the argument to @code{mysql_data_seek()} from @code{ulong} to

@code{ulonglong}.

@itemize @bullet

@item

Added @code{mysqld} option @code{-O lower_case_table_names=@{0|1@}} to allow

Added @code{-O lower_case_table_names=@{0|1@}} option to @code{mysqld} to allow

users to force table names to lowercase.

@item

Added @code{SELECT ... INTO DUMPFILE}.

@item

Added @code{mysqld} option @code{--ansi} to make some functions @code{ANSI SQL}

compatible.

Added @code{--ansi} option to @code{mysqld} to make some functions

@code{ANSI SQL} compatible.

@item

Temporary tables now starts with @code{#sql}.

Temporary table names now start with @code{#sql}.

@item

Added quoting of identifiers with @code{`} (@code{"} in @code{--ansi} mode).

@item

Changed to use snprintf() when printing floats to avoid some buffer

Changed to use @code{snprintf()} when printing floats to avoid some buffer

overflows on FreeBSD.

@item

Made @code{[floor()} overflow safe on FreeBSD.

Made @code{floor()} overflow safe on FreeBSD.

@item

Added option @code{--quote-names} to @code{mysqldump}

Added @code{--quote-names} option to @code{mysqldump}.

@item

Fixed bug that one could make a part of a @code{PRIMARY KEY NOT NULL}.

@item

@item

Added patch by Sasha for user-defined variables.

@item

Changed that @code{FLOAT} and @code{DOUBLE} (without any length modifiers) are

not anymore fixed decimal point numbers.

Changed that @code{FLOAT} and @code{DOUBLE} (without any length modifiers)

no longer are fixed decimal point numbers.

@item

Changed the meaning of @code{FLOAT(X)}: Now this is the same as @code{FLOAT} if

X <= 24 and a @code{DOUBLE} if 24 < X <= 53.

@code{X} <= 24 and a @code{DOUBLE} if 24 < @code{X} <= 53.

@item

@code{DECIMAL(X)} is now an alias for @code{DECIMAL(X,0)} and @code{DECIMAL}

is now an alias for @code{DECIMAL(10,0)}.  The same goes for @code{NUMERIC}.

@item

Fixed problem with @code{SELECT DISTINCT ... ORDER BY RAND()}.

@item

Added patches by Sergei A. Golubchik for text searching on the MyISAM level.

Added patches by Sergei A. Golubchik for text searching on the @code{MyISAM}

level.

@item

Fixed cache overflow problem when using full joins without keys.

@item

@item

Some small changes to make parsing faster.

@item

@code{ALTER TABLE} + adding a column after the last field didn't work.

Adding a column after the last field with @code{ALTER TABLE} didn't work.

@item

Fixed problem when using an auto_increment column in two keys

Fixed problem when using an @code{AUTO_INCREMENT} column in two keys

@item

One can now with MyISAM have the auto_increment part as a sub part:

With @code{MyISAM}, you now can have an @code{AUTO_INCREMENT} column as a key

sub part:

@code{CREATE TABLE foo (a int not null auto_increment, b char(5), primary key (b,a))}

@item

Fixed bug in MyISAM with packed char keys that could be @code{NULL}.

Fixed bug in @code{MyISAM} with packed char keys that could be @code{NULL}.

@item

@code{AS} on field name with @code{CREATE TABLE table_name SELECT ...} didn't

work.

Don't allow @code{NULL} columns in a @code{PRIMARY KEY} (only in @code{UNIQUE}

keys).

@item

Clear @code{LAST_INSERT_ID} if one uses this in ODBC:

Clear @code{LAST_INSERT_ID()} if one uses this in ODBC:

@code{WHERE auto_increment_column IS NULL}.  This seems to fix some problems

with Access.

@item

searching after the last inserted row with @code{WHERE

auto_increment_column IS NULL}.

@item

Added new @code{mysqld} variable @code{concurrency} for Solaris.

Added new variable @code{concurrency} to @code{mysqld} for Solaris.

@item

Added option @code{--relative} to @code{mysqladmin} to make

Added @code{--relative} option to @code{mysqladmin} to make

@code{extended-status} more useful to monitor changes.

@item

Fixed bug when using @code{COUNT(DISTINCT ...)} on an empty table.

@itemize @bullet

@item

Inserting a @code{DATETIME} into a @code{TIME} column will not anymore

Inserting a @code{DATETIME} into a @code{TIME} column no longer will

try to store 'days' in it.

@item

Fixed problem with storage of float/double on little endian machines.

@item

Added connect timeout on TCP/IP connections.

@item

Fixed problem with @code{LIKE} "%" on an index that may have @code{NULL} values.

Fixed problem with @code{LIKE "%"} on an index that may have @code{NULL} values.

@item

@code{REVOKE ALL PRIVILEGES} didn't revoke all privileges.

@item

Allow creation of temporary tables with same name as the original table.

@item

When granting a user a grant option for a database, he couldn't grant

When granting a user a @strong{grant} option for a database, he couldn't grant

privileges to other users.

@item

New command: @code{SHOW GRANTS FOR user} (by Sinisa).

@item

Added patches for MIT-pthreads on NetBSD.

@item

Fixed range bug in MyISAM.

Fixed range bug in @code{MyISAM}.

@item

@code{ASC} is now the default again for @code{ORDER BY}.

@item

Added @code{LIMIT} to @code{UPDATE}.

@item

New client function: @code{mysql_change_user()}.

Added @code{mysql_change_user()} function to the MySQL C API.

@item

Added character set to @code{SHOW VARIABLES}.

@item

default value.

@item

Changed @code{SUBSTRING(text FROM pos)} to conform to ANSI SQL. (Before this

construct returned the rightmost 'pos' characters.)

construct returned the rightmost @code{pos} characters.)

@item

@code{SUM()} with @code{GROUP BY} returned 0 on some systems.

@item

bug was that some rows could be duplicated in the result.

@item

Running @code{myisamchk} without @code{-a} updated the index

distribution wrong.

distribution incorrectly.

@item

@code{SET SQL_LOW_PRIORITY_UPDATES=1} gave parse error before.

@code{SET SQL_LOW_PRIORITY_UPDATES=1} was causing a parse error.

@item

You can now update indexes columns that are used in the @code{WHERE} clause.

You can now update index columns that are used in the @code{WHERE} clause.

@code{UPDATE tbl_name SET KEY=KEY+1 WHERE KEY > 100}

@item

Date handling should now be a bit faster.

@item

Added handling of fuzzy dates (dates where day or month is 0):

(Like: 1999-01-00)

Added handling of fuzzy dates (dates where day or month is 0), such as

1999-01-00.

@item

Fixed optimisation of @code{SELECT ... WHERE key_part1=const1 AND

key_part_2=const2 AND key_part1=const4 AND key_part2=const4}; Indextype

@item

Fixed problem with @code{LOCK TABLES} combined with @code{DELETE FROM table}.

@item

MyISAM tables now allow keys on @code{NULL} and @code{BLOB/TEXT} columns.

@code{MyISAM} tables now allow keys on @code{NULL} and @code{BLOB/TEXT} columns.

@item

The following join is now much faster:

@code{SELECT ... FROM t1 LEFT JOIN t2 ON ... WHERE t2.not_null_column IS NULL}.

Indexes are now used for @code{WHERE column_name IS NULL}.

@item

Changed heap tables to be stored in low_byte_first order (to make it easy

to convert to MyISAM tables)

to convert to @code{MyISAM} tables)

@item

Automatic change of HEAP temporary tables to MyISAM tables in case of

'table is full' errors.

Automatic change of @code{HEAP} temporary tables to @code{MyISAM} tables

in case of 'table is full' errors.

@item

Added option @code{--init-file=file_name} to @code{mysqld}.

Added @code{--init-file=file_name} option to @code{mysqld}.

@item

@code{COUNT(DISTINCT value, [value, ...])}

Added @code{COUNT(DISTINCT value, [value, ...])}.

@item

@code{CREATE TEMPORARY TABLE} now creates a temporary table, in its own

namespace, that is automatically deleted if connection is dropped.

You can create in-memory @code{HEAP} tables which are extremely fast for

lookups.

@item

Support for big files (63 bit) on OSes that support big files.

Support for big files (63-bit) on OSes that support big files.

@item

New function @code{LOAD_FILE(filename)} to get the contents of a file as a

string value.

@item

Added the ODBC 3.0 @code{EXTRACT(interval FROM datetime)} function.

@item

Columns defined as @code{FLOAT(X)} is not rounded on storage and may be

Columns defined as @code{FLOAT(X)} are not rounded on storage and may be

in scientific notation (1.0 E+10) when retrieved.

@item

@code{REPLACE} is now faster than before.

@item

Changed @code{LIKE} character comparison to behave as @code{=};

This means that @code{'e' LIKE '@'e'} (if the line doesn't display

correctly, the latter 'e' means a French 'e' with a dot above) is now true.

This means that @code{'e' LIKE '@'e'} is now true.  (If the line doesn't

display correctly, the latter 'e' is a French 'e' with a dot above.)

@item

@code{SHOW TABLE STATUS} returns a lot of information about the tables.

@item

Added @code{LIKE} to the @code{SHOW STATUS} command.

@item

Added privilege column to @code{SHOW COLUMNS}.

Added @code{Privileges} column to @code{SHOW COLUMNS}.

@item

Added columns @code{packed} and @code{comment} to @code{SHOW INDEX}.

Added @code{Packed} and @code{Comment} columns to @code{SHOW INDEX}.

@item

Added comments to tables (with @code{CREATE TABLE ... COMMENT "xxx"}).

@item

This procedure is extremely useful when you want to check the data in your

table!

@item

@code{BINARY} cast to force a string to be compared case sensitively.

@code{BINARY} cast to force a string to be compared in case sensitive fashion.

@item

Added option @code{--skip-show-database} to @code{mysqld}.

Added @code{--skip-show-database} option to @code{mysqld}.

@item

Check if a row has changed in an @code{UPDATE} now also works with

@code{BLOB}/@code{TEXT} columns.

Check whether or not a row has changed in an @code{UPDATE} now also works

with @code{BLOB}/@code{TEXT} columns.

@item

Added the @code{INNER} join syntax.  @strong{NOTE}:  This made @code{INNER}

a reserved word!

@item

Added support for netmasks to the hostname in the MySQL tables.

Added support for netmasks to the hostname in the MySQL grant tables.

You can specify a netmask using the @code{IP/NETMASK} syntax.

@item

If you compare a @code{NOT NULL DATE/DATETIME} column with @code{IS

@item [[[[[H]H]H]H]MM]SS[.fraction]

@end itemize

@item

Detect (and ignore) second fraction part from @code{DATETIME}.

Detect (and ignore) fractional second part from @code{DATETIME}.

@item

Added the @code{LOW_PRIORITY} attribute to @code{LOAD DATA INFILE}.

@item

The default index name now uses the same case as the used column name.

The default index name now uses the same case as the column name on which the

index name is based.

@item

Changed default number of connections to 100.

@item

@code{DECIMAL(x,y)} now works according to ANSI SQL.

@item

Added aggregate UDF functions. Thanks to Andreas F. Bobak

@email{bobak@@relog.ch} for this!

(@email{bobak@@relog.ch}) for this!

@item

@code{LAST_INSERT_ID()} is now updated for @code{INSERT INTO ... SELECT}.

@item

Using @code{AUTO_INCREMENT} will now automatically make the column

@code{NOT NULL}.

@item

Show @code{NULL} as the default value for AUTO_INCREMENT columns.

Show @code{NULL} as the default value for @code{AUTO_INCREMENT} columns.

@item

Added @code{SQL_BIG_RESULT};  @code{SQL_SMALL_RESULT} is now default.

@item

Added a shared library RPM. This enhancement was contributed by David

Fox (dsfox@@cogsci.ucsd.edu).

Fox (@email{dsfox@@cogsci.ucsd.edu}).

@item

Added a @code{--enable-large-files/--disable-large-files} switch to

@code{configure}. See @file{configure.in} for some systems where this is

Added  @code{--enable-large-files} and @code{--disable-large-files} switches

to @code{configure}. See @file{configure.in} for some systems where this is

automatically turned off because of broken implementations.

@item

Upgraded @code{readline} to 4.0.

@item

New @code{CREATE TABLE} options: @code{PACK_KEYS} and @code{CHECKSUM}.

@item

Added @code{mysqld} option @code{--default-table-type}.

Added @code{--default-table-type} option to @code{mysqld}.

@end itemize

@itemize @bullet

@item

Fixed problems in Windows when locking tables with @code{LOCK TABLE}

Fixed problems in Windows when locking tables with @code{LOCK TABLE}.

@item

Quicker kill of @code{SELECT DISTINCT} queries.

@end itemize