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author | monty@work.mysql.com <> | 2001-05-23 22:52:21 +0200 |
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committer | monty@work.mysql.com <> | 2001-05-23 22:52:21 +0200 |
commit | b684e9aaebe5363fdf07f8ab6cb55851d8fc757b (patch) | |
tree | 6e2818b4d9cb93ed1f630c53a9551b05425ca541 /Docs | |
parent | a9e31951f448a46fb2c8d12775a7c430c9371b8b (diff) | |
parent | 221b1ea5a4d5d0334fa7ac62482467c89b97698d (diff) | |
download | mariadb-git-b684e9aaebe5363fdf07f8ab6cb55851d8fc757b.tar.gz |
Merge
Diffstat (limited to 'Docs')
-rw-r--r-- | Docs/manual.texi | 213 |
1 files changed, 147 insertions, 66 deletions
diff --git a/Docs/manual.texi b/Docs/manual.texi index 0ca3734d052..f63e2c17ff8 100644 --- a/Docs/manual.texi +++ b/Docs/manual.texi @@ -539,7 +539,7 @@ InnoDB Tables * InnoDB overview:: InnoDB tables overview * InnoDB start:: InnoDB startup options -* Creating an InnoDB database:: Creating an InnoDB database. +* InnoDB init:: Creating InnoDB table space. * Using InnoDB tables:: Creating InnoDB tables * Adding and removing:: Adding and removing InnoDB data and log files * Backing up:: Backing up and recovering an InnoDB database @@ -552,7 +552,7 @@ InnoDB Tables * InnoDB restrictions:: Some restrictions on InnoDB tables * InnoDB contact information:: InnoDB contact information. -Creating an InnoDB database +Creating InnoDB table space * Error creating InnoDB:: @@ -942,6 +942,12 @@ MySQL Internals * MySQL threads:: MySQL threads * MySQL test suite:: MySQL test suite +MySQL Test Suite + +* running mysqltest:: +* extending mysqltest:: +* Reporting mysqltest bugs:: + Credits * Developers:: @@ -9203,9 +9209,10 @@ You should now have an ODBC connection to @strong{MySQL}, encrypted using SSH. @node Windows symbolic links, Windows compiling, Windows and SSH, Windows @subsection Splitting Data Across Different Disks on Windows -Beginning with @strong{MySQL} Version 3.23.16, the @strong{MySQL} -distribution is compiled with the @code{-DUSE_SYMDIR} option. This allows -you to put a database on different disk by adding a symbolic link to it +Beginning with @strong{MySQL} Version 3.23.16, the @code{mysqld-max} +and @code{mysql-max-nt} servers in the @strong{MySQL} distribution are +compiled with the @code{-DUSE_SYMDIR} option. This allows you to put a +database on different disk by adding a symbolic link to it (in a manner similar to the way that symbolic links work on Unix). On Windows, you make a symbolic link to a database by creating a file @@ -10372,7 +10379,7 @@ feature). Ignore the @code{delay_key_write} option for all tables. @xref{Server parameters}. -@item -Sg, --skip-grant-tables +@item --skip-grant-tables This option causes the server not to use the privilege system at all. This gives everyone @emph{full access} to all databases! (You can tell a running server to start using the grant tables again by executing @code{mysqladmin @@ -24716,7 +24723,7 @@ NuSphere is working on removing these limitations. @menu * InnoDB overview:: InnoDB tables overview * InnoDB start:: InnoDB startup options -* Creating an InnoDB database:: Creating an InnoDB database. +* InnoDB init:: Creating InnoDB table space. * Using InnoDB tables:: Creating InnoDB tables * Adding and removing:: Adding and removing InnoDB data and log files * Backing up:: Backing up and recovering an InnoDB database @@ -24771,7 +24778,7 @@ may consist of several files. This is different from, for example, InnoDB is distributed under the GNU GPL License Version 2 (of June 1991). In the source distribution of @strong{MySQL}, InnoDB appears as a subdirectory. -@node InnoDB start, Creating an InnoDB database, InnoDB overview, InnoDB +@node InnoDB start, InnoDB init, InnoDB overview, InnoDB @subsection InnoDB startup options Beginning from @strong{MySQL}-3.23.37 the prefix of the options is changed @@ -24913,8 +24920,8 @@ InnoDB cannot notice. In cases like this the timeout is useful to resolve the situation. @end multitable -@node Creating an InnoDB database, Using InnoDB tables, InnoDB start, InnoDB -@subsection Creating an InnoDB database +@node InnoDB init, Using InnoDB tables, InnoDB start, InnoDB +@subsection Creating InnoDB table space Suppose you have installed @strong{MySQL} and have edited @file{my.cnf} so that it contains the necessary InnoDB configuration parameters. @@ -24975,7 +24982,7 @@ mysqld: ready for connections * Error creating InnoDB:: @end menu -@node Error creating InnoDB, , Creating an InnoDB database, Creating an InnoDB database +@node Error creating InnoDB, , InnoDB init, InnoDB init @subsubsection If something goes wrong in database creation If something goes wrong in an InnoDB database creation, you should @@ -24985,7 +24992,7 @@ create some InnoDB tables, delete also the corresponding @file{.frm} files for these tables from the @strong{MySQL} database directories. Then you can try the InnoDB database creation again. -@node Using InnoDB tables, Adding and removing, Creating an InnoDB database, InnoDB +@node Using InnoDB tables, Adding and removing, InnoDB init, InnoDB @subsection Creating InnoDB tables Suppose you have started the @strong{MySQL} client with the command @@ -26221,6 +26228,12 @@ The menagerie database will be simple (deliberately), but it is not difficult to think of real-world situations in which a similar type of database might be used. For example, a database like this could be used by a farmer to keep track of livestock, or by a veterinarian to keep track of patient records. +A menagerie distribution containing some of the queries and sample data used +in the following sections can be obtained from the @strong{MySQL} Web site. +It's available in either +@uref{http://www.mysql.com/Downloads/Contrib/Examples/menagerie.tar.gz,compressed @code{tar} format} +or +@uref{http://www.mysql.com/Downloads/Contrib/Examples/menagerie.zip,Zip format}. Use the @code{SHOW} statement to find out what databases currently exist on the server: @@ -35429,12 +35442,20 @@ To add a new native @strong{MySQL} function, follow these steps: Add one line to @file{lex.h} that defines the function name in the @code{sql_functions[]} array. @item -Add two lines to @file{sql_yacc.yy}. One indicates the preprocessor -symbol that @code{yacc} should define (this should be added at the -beginning of the file). Then define the function parameters and add an -``item'' with these parameters to the @code{simple_expr} parsing rule. -For an example, check all occurrences of @code{SOUNDEX} in -@file{sql_yacc.yy} to see how this is done. +If the function prototype is simple (just takes zero, one, two or three +arguments), you should in lex.h specify SYM(FUNC_ARG#) (where # is the +number of arguments) as the second argument in the +@code{sql_functions[]} array and add a function that creates a function +object in @file{item_create.cc}. Take a look at @code{"ABS"} and +@code{create_funcs_abs()} for an example of this. + +If the function prototype is complicated (for example takes a variable number +of arguments), you should add two lines to @file{sql_yacc.yy}. One +indicates the preprocessor symbol that @code{yacc} should define (this +should be added at the beginning of the file). Then define the function +parameters and add an ``item'' with these parameters to the +@code{simple_expr} parsing rule. For an example, check all occurrences +of @code{ATAN} in @file{sql_yacc.yy} to see how this is done. @item In @file{item_func.h}, declare a class inheriting from @code{Item_num_func} or @code{Item_str_func}, depending on whether your function returns a number or a @@ -35447,28 +35468,45 @@ double Item_func_newname::val() longlong Item_func_newname::val_int() String *Item_func_newname::Str(String *str) @end example + +If you inherit your object from any of the standard items (like +@code{Item_num_func} you probably only have to define one of the above +functions and let the parent object take care of the other functions. +For example, the @code{Item_str_func} class defines a @code{val()} function +that executes @code{atof()} on the value returned by @code{::str()}. + @item -You should probably also define the following function: +You should probably also define the following object function: @example void Item_func_newname::fix_length_and_dec() @end example This function should at least calculate @code{max_length} based on the given arguments. @code{max_length} is the maximum number of characters -the function may return. This function should also set @code{maybe_null = 0} -if the main function can't return a @code{NULL} value. The function can check -if any of the function arguments can return @code{NULL} by checking the -arguments @code{maybe_null} variable. +the function may return. This function should also set @code{maybe_null += 0} if the main function can't return a @code{NULL} value. The +function can check if any of the function arguments can return +@code{NULL} by checking the arguments @code{maybe_null} variable. You +can take a look at @code{Item_func_mod::fix_length_and_dec} for a +typical example of how to do this. @end enumerate -All functions must be thread safe. +All functions must be thread safe (In other words, don't use any global or +static variables in the functions without protecting them with mutexes). + +If you want to return @code{NULL}, from @code{::val()}, @code{::val_int()} +or @code{::str()} you should set @code{null_value} to 1 and return 0. + +For @code{::str()} object functions, there are some additional +considerations to be aware of: -For string functions, there are some additional considerations to be aware of: @itemize @bullet @item -The @code{String *str} argument provides a string -buffer that may be used to hold the result. +The @code{String *str} argument provides a string buffer that may be +used to hold the result. (For more information about the @code{String} type, +take a look at the @file{sql_string.h} file.) @item -The function should return the string that holds the result. +The @code{::str()} function should return the string that holds the result or +@code{(char*) 0} if the result is @code{NULL}. @item All current string functions try to avoid allocating any memory unless absolutely necessary! @@ -42486,16 +42524,35 @@ as well developers, to do regression tests on the @strong{MySQL} code. To address this problem, we have created a new test system that is included in the source and binary distributions starting in Version 3.23.29. -The test system consist of a test language interpreter (@code{mysqltest}), -a shell script to run all tests(@code{mysql-test-run}), the actual test cases -written in a special test language, and their expected results. To run the -test suite on your system after a build, type @code{mysql-test/mysql-test-run} -from the source root. If you have installed a binary distribution, @code{cd} -to the install root (eg. @code{/usr/local/mysql}), and do -@code{scripts/mysql-test-run}. All tests should succeed. If they do not, -use @code{mysqlbug} to send a bug report to @email{bugs@@lists.mysql.com}. -Make sure to include the output of @code{mysql-test-run}, as well as -contents of all @code{.reject} files in @code{mysql-test/r} directory. +The current set of test cases doesn't test everything in MySQL but, it +should catch most obvious bugs in the SQL processing code, OS/library +issues, and is quite thorough in testing replication. Our eventual goal +is to have the tests cover 100% of the code. We welcome contributions +to our test suite. You may especially want to contribute tests that +examine the functionality critical to your system, as this will ensure +that all future @strong{MySQL} releases will work well with your +applications. + +@menu +* running mysqltest:: +* extending mysqltest:: +* Reporting mysqltest bugs:: +@end menu + +@node running mysqltest, extending mysqltest, MySQL test suite, MySQL test suite +@subsection Running the MySQL Test Suite + +The test system consist of a test language interpreter +(@code{mysqltest}), a shell script to run all +tests(@code{mysql-test-run}), the actual test cases written in a special +test language, and their expected results. To run the test suite on +your system after a build, type @code{make test} or +@code{mysql-test/mysql-test-run} from the source root. If you have +installed a binary distribution, @code{cd} to the install root +(eg. @code{/usr/local/mysql}), and do @code{scripts/mysql-test-run}. +All tests should succeed. If not, you should try to find out why and +report the problem if this is a bug in @strong{MySQL}. +@xref{Reporting mysqltest bugs}. If you have a copy of @code{mysqld} running on the machine where you want to run the test suite you do not have to stop it, as long as it is not using @@ -42503,14 +42560,14 @@ ports @code{9306} and @code{9307}. If one of those ports is taken, you should edit @code{mysql-test-run} and change the values of the master and/or slave port to one that is available. -The current set of test cases is far from comprehensive, as we have not yet -converted all of our private tests to the new format. However, it should -already catch most obvious bugs in the SQL processing code, OS/library issues, -and is quite thorough in testing replication. Our eventual goal is to have -the tests cover 100% of the code. We welcome contributions to our test suite. -You may especially want to contribute tests that examine the functionality -critical to your system, as this will ensure that all future @strong{MySQL} -releases will work well with your applications. +You can run one individual test case with +@code{mysql-test/mysql-test-run test_name}. + +If one test fails, you should test running @code{mysql-test-run} with +the @code{--force} option to check if any other tests fails. + +@node extending mysqltest, Reporting mysqltest bugs, running mysqltest, MySQL test suite +@subsection Extending the MySQL Test Suite You can use the @code{mysqltest} language to write your own test cases. Unfortunately, we have not yet written full documentation for it - we plan to @@ -42518,16 +42575,10 @@ do this shortly. You can, however, look at our current test cases and use them as an example. The following points should help you get started: @itemize - @item The tests are located in @code{mysql-test/t/*.test} @item -You can run one individual test case with -@code{mysql-test/mysql-test-run test_name} -removing @code{.test} extension from the file name - -@item A test case consists of @code{;} terminated statements and is similar to the input of @code{mysql} command line client. A statement by default is a query to be sent to @strong{MySQL} server, unless it is recognized as internal @@ -42555,15 +42606,9 @@ test produces more than one result, you should use @code{test_name.a.result}, @code{test_name.b.result}, etc. @item -Failed test results are put in a file with the same base name as the -result file with the @code{.reject} extension. If your test case is -failing, you should do a diff on the two files. If you cannot see how -they are different, examine both with @code{od -c} and also check their -lengths. - -@item -You can prefix a query with @code{!} if the test can continue after that query -returns an error. +If a statement returns an error, you should on the line before the statement +specify with the @code{--error error-number}. The error number can be +a list of possible error numbers separated with @code{','}. @item If you are writing a replication test case, you should on the first line of @@ -42602,6 +42647,9 @@ attachments, you should ftp all the relevant files to: @end itemize +@node Reporting mysqltest bugs, , extending mysqltest, MySQL test suite +@subsection Extending the MySQL Test Suite + If your @strong{MySQL} version doesn't pass the test suite you should do the following: @@ -42612,6 +42660,26 @@ what when wrong! When you do it, please use the @code{mysqlbug} script so that we can get information about your system and @code{MySQL} version. @xref{Bug reports}. @item +Make sure to include the output of @code{mysql-test-run}, as well as +contents of all @code{.reject} files in @code{mysql-test/r} directory. +@item +If a test in the test suite fails, check if the test fails also when run +by its own: + +@example +cd mysql-test +mysql-test-run --local test-name +@end example + +If this fails, then you should configure @strong{MySQL} with +@code{--with-debug} and run @code{mysql-test-run} with the +@code{--debug} option. If this also fails send the trace file +@file{var/tmp/master.trace} to ftp://support.mysql.com/pub/mysql/secret +so that we can examine it. Please remember to also include a full +description of your system, the version of the mysqld binary and how you +compiled it. + +@item If you have compiled @strong{MySQL} yourself, check our manual for how to compile @strong{MySQL} on your platform or, preferable, use one of the binaries we have compiled for you at @@ -42622,10 +42690,14 @@ pass the test suite ! If you get an error, like @code{Result length mismatch} or @code{Result content mismatch} it means that the output of the test didn't match exactly the expected output. This could be a bug in @strong{MySQL} or -that your @code{mysqld} version produces slightly different results under some -circumstances. In this case, you should compare the @file{.test} -and @file{.reject} file in the @file{mysql-test/r} sub directory to -see if this is something to worry about. +that your mysqld version produces slight different results under some +circumstances. + +Failed test results are put in a file with the same base name as the +result file with the @code{.reject} extension. If your test case is +failing, you should do a diff on the two files. If you cannot see how +they are different, examine both with @code{od -c} and also check their +lengths. @item If a test fails totally, you should check the logs file in the @@ -42633,7 +42705,8 @@ If a test fails totally, you should check the logs file in the @item If you have compiled @strong{MySQL} with debugging you can try to debug this -with the @code{--gdb} and @code{--debug} options to @code{mysql-test-run}. +by running @code{mysql-test-run} with the @code{--gdb} and/or @code{--debug} +options. @xref{Making trace files}. If you have not compiled @strong{MySQL} for debugging you should probably @@ -43459,6 +43532,11 @@ these tables directly without ODBC-driver. Windows GUI (binary only) to administrate a database, by David B. Mansel, @email{david@@zhadum.org}. + +@item @uref{http://members.xoom.com/_opex_/mysqlmanager/index.html, MySQL Manager} +a graphical MySQL server manager for MySQL server written in Java, for Windows + + @item @uref{http://www.mysql.com/Downloads/Win32/netadmin.zip, netadmin.zip} An administrator tool for @strong{MySQL} on Windows 95/98 and Windows NT 4.0. Only tested with @strong{MySQL} Versions 3.23.5 - 3.23.7. Written @@ -44553,6 +44631,9 @@ not yet 100% confident in this code. @appendixsubsec Changes in release 3.23.39 @itemize @bullet @item +Fixed that date-part extract functions works with dates where day +and/or month is 0. +@item Extended argument length in option files from 256 to 512 chars. @item Fixed problem with shutdown when @code{INSERT DELAYED} was waiting for |