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################################################################################
# inc/partition.pre #
# #
# Purpose: #
# Auxiliary script creating prerequisites needed by the partitioning tests #
# The name of the toplevel scripts sourcing this one is #
# t/partition_<feature>_<storage engine>.test #
# #
# Several parameters have to be set before this file is sourced. #
# Please refer to the README. #
# #
# The README for the partitioning testcases is at the end of this file. #
# #
#------------------------------------------------------------------------------#
# Original Author: mleich #
# Original Date: 2006-03-05 #
# Change Author: mleich #
# Change Date: 2007-10-08 #
# Change: Minor cleanup and fix for #
# Bug#31243 Test "partition_basic_myisam" truncates path names#
# - Blow column file_list up to VARBINARY(10000) #
# - remove reference to fixed bugs #17455, #19305 #
################################################################################
# Set the session storage engine
eval SET @@session.default_storage_engine = $engine;
##### Disabled/affected testcases, because of open bugs #####
# --echo
# --echo #------------------------------------------------------------------------
# --echo # There are several testcases disabled because of the open bugs
# if (`SELECT @@session.default_storage_engine IN('ndbcluster')`)
# {
# --echo # #18730
# }
# --echo #------------------------------------------------------------------------
# # Attention: Only bugs appearing in all storage engines should be mentioned above.
# # The top level test wrapper (example: t/partition_basic_ndb.test)
# # may set the $fixed_bug<nnnnn> variable to 0 after sourcing
# # this file.
# # Bug#18730: Partitions: NDB, crash on SELECT MIN(<unique column>)
# # Attention: NDB testcases set this variable later to 0
# let $fixed_bug18730= 1;
--echo
--echo #------------------------------------------------------------------------
--echo # 0. Setting of auxiliary variables + Creation of an auxiliary tables
--echo # needed in many testcases
--echo #------------------------------------------------------------------------
# Set the variable $no_debug depending on the current value of $debug;
--disable_query_log
eval SET @aux = $debug;
let $no_debug= `SELECT @aux = 0`;
--enable_query_log
if ($debug)
{
--echo # Attention: Script debugging is swiched on.
--echo # - all statements will be protocolled
--echo # - some additional will be executed
--echo # It is to be expected, that we get huge differences.
}
let $ER_DUP_KEY= 1022;
let $ER_GET_ERRNO= 1030;
let $ER_BAD_NULL_ERROR= 1048;
let $ER_DUP_ENTRY= 1062;
let $ER_PARSE_ERROR= 1064;
let $ER_TOO_MANY_PARTITIONS_ERROR= 1499;
let $ER_UNIQUE_KEY_NEED_ALL_FIELDS_IN_PF= 1503;
let $ER_NO_PARTS_ERROR= 1504;
let $ER_DROP_PARTITION_NON_EXISTENT= 1507;
let $ER_SAME_NAME_PARTITION= 1517;
let $ER_NO_PARTITION_FOR_GIVEN_VALUE= 1526;
# Set the variable $engine_other to a storage engine <> $engine
--disable_query_log
eval SELECT UPPER($engine) = 'MEMORY' INTO @aux;
let $aux= `SELECT @aux`;
if ($aux)
{
let $engine_other= 'MyISAM';
}
if (!$aux)
{
let $engine_other= 'MEMORY';
}
--enable_query_log
# Numbers used for
# - partitioning Example: ... PARTITION part1 VALUES LESS THAN ($max_row_div2)
# - INSERT/SELECT/UPDATE/DELETE Example: ... WHERE f_int1 > @max_row_div3
let $max_row= `SELECT @max_row`;
SELECT @max_row DIV 2 INTO @max_row_div2;
let $max_row_div2= `SELECT @max_row_div2`;
SELECT @max_row DIV 3 INTO @max_row_div3;
let $max_row_div3= `SELECT @max_row_div3`;
SELECT @max_row DIV 4 INTO @max_row_div4;
let $max_row_div4= `SELECT @max_row_div4`;
SET @max_int_4 = 2147483647;
let $max_int_4= `SELECT @max_int_4`;
# Three insert statements used in many testcases.
let $insert_first_half= INSERT INTO t1(f_int1,f_int2,f_char1,f_char2,f_charbig)
SELECT f_int1,f_int2,f_char1,f_char2,f_charbig FROM t0_template
WHERE f_int1 BETWEEN 1 AND @max_row_div2 - 1;
let $insert_second_half= INSERT INTO t1(f_int1,f_int2,f_char1,f_char2,f_charbig)
SELECT f_int1,f_int2,f_char1,f_char2,f_charbig FROM t0_template
WHERE f_int1 BETWEEN @max_row_div2 AND @max_row;
#
let $insert_first_third= INSERT INTO t1(f_int1,f_int2,f_char1,f_char2,f_charbig)
SELECT f_int1,f_int2,f_char1,f_char2,f_charbig FROM t0_template
WHERE f_int1 BETWEEN 1 AND @max_row_div3 - 1;
let $insert_second_third= INSERT INTO t1(f_int1,f_int2,f_char1,f_char2,f_charbig)
SELECT f_int1,f_int2,f_char1,f_char2,f_charbig FROM t0_template
WHERE f_int1 BETWEEN @max_row_div3 AND 2 * @max_row_div3 - 1;
let $insert_third_third= INSERT INTO t1(f_int1,f_int2,f_char1,f_char2,f_charbig)
SELECT f_int1,f_int2,f_char1,f_char2,f_charbig FROM t0_template
WHERE f_int1 BETWEEN 2 * @max_row_div3 AND @max_row;
#
let $insert_all= INSERT INTO t1(f_int1,f_int2,f_char1,f_char2,f_charbig)
SELECT f_int1,f_int2,f_char1,f_char2,f_charbig FROM t0_template;
# Column list with definition for all tables to be checked
let $column_list= f_int1 INTEGER,
f_int2 INTEGER,
f_char1 CHAR(20),
f_char2 CHAR(20),
f_charbig VARCHAR(1000);
# Currently (April 2006) the default compiled NDB cannot manage
# no_of_partitions (no subpartitioning) > 8
# no_of_partitions * no_of_subpartitions > 8
# This NDB specific limitation will cause
# 1005: Can't create table 'test.t1' (errno: 1224)
# in partition_methods[1|2].inc and partition_alter_1[1|3].inc
# when $sub_part_no is set to >= 3.
let $sub_part_no= 3;
if (`SELECT @@session.default_storage_engine = 'ndbcluster'`)
{
let $sub_part_no= 2;
}
# Auxiliary table used for many experiments (INSERT INTO t1 ... SELECT ...)
# on the tables to be checked
--disable_warnings
DROP TABLE IF EXISTS t0_template;
--enable_warnings
eval CREATE TABLE t0_template (
$column_list ,
PRIMARY KEY(f_int1))
ENGINE = MEMORY;
--echo # Logging of <max_row> INSERTs into t0_template suppressed
--disable_query_log
let $num= `SELECT @max_row`;
while ($num)
{
eval INSERT INTO t0_template
SET f_int1 = $num, f_int2 = $num, f_char1 = '$num', f_char2 = '$num',
f_charbig = '===$num===';
dec $num;
}
--enable_query_log
# Auxiliary table used for comparisons of table definitions and file lists
--disable_warnings
DROP TABLE IF EXISTS t0_definition;
--enable_warnings
CREATE TABLE t0_definition (
state CHAR(3),
create_command VARBINARY(5000),
file_list VARBINARY(10000),
PRIMARY KEY (state)
) ENGINE = MEMORY;
# Auxiliary table used for trigger experiments
--disable_warnings
DROP TABLE IF EXISTS t0_aux;
--enable_warnings
eval CREATE TABLE t0_aux ( $column_list )
ENGINE = MEMORY;
# Prevent that a change of defaults breaks the tests.
SET AUTOCOMMIT= 1;
SET @@session.sql_mode= '';
--echo # End of basic preparations needed for all tests
--echo #-----------------------------------------------
if (0)
{
# README for the partioning tests (t/partition_<feature>_<engine>.test)
# ========================================================================
#
# 1. Explanation of the variables to be assigned in the top-level storage engine
# specific scripts
#------------------------------------------------------------------------------#
#
# Options, for mostly test(script+logic+result) debugging support:
# $debug= 0 (default)
# --> The protocolling of auxiliary stuff is suppressed.
# The file with expected results fits to this setting.
# $debug= 1
# --> All executed statements will be printed into the protocol.
# That means statements which
# - are most time of low interest and do auxiliary stuff
# like generating the next SQL statement to be executed
# - additional statements giving informations about table
# contents or the value of some variables
# You will get huge differences, because the file with the
# expected results was created with $debug = 0 .
#
# $with_partitioning= 1 (default)
# --> Do the test with really partitioned tables.
# $with_partitioning= 0
# --> Do not use partitioned tables. This means omit the
# "PARTITION BY ... SUBPARTITION BY ..." part of the CREATE TABLE
# statement. This setting has only an effect on tests where
# partition_methods1.inc and/or partition_methods2.inc are sourced.
#
# You will get differences when the CREATE TABLE statements
# and table related files are printed or testcases check
# partition borders, but most server responses and result
# sets should be usable as reference for the test with the
# partioned tables.
# Please make a run with $with_partitioning= 0, whenever
# - you do not trust the scripts (routines checking server codes/
# result sets)
# - fear that there is a new bug affecting partitioned and non
# partitioned tables
#
#
# Execute the test of "table" files
# $do_file_tests= 1 (default for
# - all storage engines within the extended QA test
# - only MyISAM within the main regression tests)
# --> Collect the file list and compare the file list before and after
# OPTIMIZE/REPAIR/TRUNCATE
# $do_file_tests= 0 (default for non MyISAM storage engines within the
# main regression tests)
# --> Do not collect the file list.
# Only MyISAM has files per PARTITION/SUBPARTITION, PRIMARY KEY, INDEX, ..
# There is a low probability that this tests detects bugs when used in
# connection with other storage engines.
#
# Option, for displaying files:
# $ls= 1 (default)
# --> Display the table related directory content via
# "ls $MYSQLTEST_VARDIR/mysqld.1/data/test/t1*"
# if these informations were collected.
# This is probably not portable to some OS.
# $ls= 0
# --> Omit displaying the directory
#
#
# Number of rows for the INSERT/UPDATE/DELETE/SELECT experiments
# on partitioned tables:
# @max_row is the number of rows which will be filled into the auxiliary
# MEMORY table t0_template. This table is used for INSERT ... SELECT
# experiments. The typical test table t1 contains most of the time
# about @max_row DIV 2 rows.
# Too small values of @max_row should be avoided, because some statements
# should affect several rows and partitions.
# Too big values of @max_row should be avoided, because of runtime issues.
# @max_row= 20 (default for the main regression tests)
# The file with expected results fits to this amount of rows.
# @max_row= 300 (default for extended QA test)
# --> Use <number rows>.
# There should be only a few systematic differences to the file
# with expected results, because most SQL statements use @max_row and
# variables like max_row_div2 instead of a constant with the actual
# number of rows.
# I assume a value of 300 rows should be
#
#
# Perform the variant with extended tests:
# $more_trigger_tests, $more_pk_ui_tests(PK=PRIMARY KEY,UI=UNIQUE INDEX),
# =0 (default for the main regression tests)
# - There is a very low probability, that the omitted tests reveal a
# bug which cannot be detected with the other tests.
# - Limiting the partitioning tests solves issues with runtime and
# protocol size.
# =1 (default for extended QA test)
#
#
# Perform PRIMARY KEY specific tests:
# $do_pk_tests= 0;
# --> Do not execute the PRIMARY KEY related tests.
# $do_pk_tests= 1 (default for extended QA test)
# --> Execute the PRIMARY KEY related tests.
# The default setting for the main regression tests depends on the
# storage engine. The PRIMARY KEY tests must be executed for every storage
# engine, where the existence of a PRIMARY KEY affects the kind how the
# table rows are stored.
# Examples for the main rgression tests:
# InnoDB - The PRIMARY KEY is a clustered index where the data for the
# rows are stored. $do_pk_tests= 1
# NDB - The PRIMARY KEY is used for implicit partitioning (NDB).
# $do_pk_tests= 1
# MyISAM - AFAIK there is no effect on the tree containing the rows.
# $do_pk_tests= 0
#
# Assign a big number smaller than the maximum value for partitions
# and smaller than the maximum value of SIGNED INTEGER
# The NDB handler only supports 32 bit integers in VALUES
# 2147483647 seems to be too big.
# $MAX_VALUE= (2147483646);
#
#
# 2. Typical architecture of a test:
#------------------------------------------------------------------------------#
# 2.1. storage engine specific script on top level
# (t/partition_<feature>_<engine>.test)
# a) General not engine specific settings and requirements
# $debug, $ls, @max_row, $more_trigger_tests, .....
# --source inc/have_partition.inc
# b) Engine specific settings and requirements
# $do_pk_tests, $MAX_VALUE, $engine
# SET SESSION default_storage_engine
# $engine_other
# c) Generate the prerequisites ($variables, @variables, tables) needed
# via
# --source inc/partition.pre
# d) Set "fixed_bug<number>" variables to 1 if there are open engine
# specific bugs which need worarounds.
# e) Execute the feature specific testscript via
# --source inc/partition_<feature>.inc
# f) Perform a cleanup by removing all objects created within the tests
# --source inc/partition_cleanup.inc
#
# 2.2. script generating the prerequisites needed in all tests
# (inc/partition.pre)
# a) Message about open bugs causing that
# - some testcases are disabled
# - it cannot be avoided that the file with expected results suffers
# from open bugs
# This should not occur often !
# Example: There is extreme often an auxiliary testscript sourced,
# but the the conditions vary. We get under a certain combination
# of conditions a wrong result set or server response.
# b) Set "fixed_bug<number>" variables to 0 if there are open engine
# specific bugs. They are later set to 1 within the toplevel script.
# Set "fixed_bug<number>" variables to 1 if there are open NOT engine
# specific bugs.
# c) Setting of auxiliary variables
# d) Creation of auxiliary tables ....
#
# 2.3. script checking a feature
# (inc/partition_<feature.inc>.inc)
# Example:
# a) "set/compute" a CREATE TABLE t1 .. and an ALTER TABLE ... statement
# b) CREATE TABLE t1 ...
# c) INSERT INTO t1 (.....) SELECT .... FROM t0_template WHERE ...
# The first 50 % of all t0_template rows will be inserted into t1.
# d) ALTER TABLE t1 (Example: ADD/DROP UNIQUE INDEX)
# e) INSERT INTO t1 (.....) SELECT .... FROM t0_template WHERE ...
# The second 50 % of all t0_template rows will be inserted into t1.
# Now t1 and t0_template should have the same content.
# f) Check the "usability" of the current table t1
# via
# --source inc/partition_check.pre
# g) DROP TABLE t1
# Switch to other CREATE and ALTER statements and run sequence a)-g) again
# ...
#
# 2.4. script checking if a certain table shows the expected behaviour
# ("usability" check): inc/partition_check.inc
# - SELECT/INSERT/UPDATE/DELETE affecting single and multiple records
# - check of values of special interest like NULL etc.
# - INSERT/UPDATE with BEFORE/AFTER triggers
# - violations of UNIQUE constraints, if there are any defined
# - transactions ...
# - TRUNCATE/OPTIMIZE/..
# - ...
#
#
# 2.5. There are some auxiliary scripts with sub tests where we cannot predict
# if we get an error and if we get one, which one.
# Example: INSERT a record where the value for a certain column equals
# some existing record.
# Depending on existing/not existing PRIMARY KEYs, UNIQUE INDEXes
# the response might be "no error", ER_DUP_KEY, ER_DUP_ENTRY.
# Our requirements:
# 1. We cannot abort whenever get an error message from the server.
# 2. We want the exact server message into the protocol.
# 3. We want abort testing if we know that a certain error must not happen.
# Common but unusable Solutions:
# a) --error 0, ER_DUP_KEY, ER_DUP_ENTRY
# <statment>
# We get no error message even if the statement fails.
# b) --error ER_DUP_KEY, ER_DUP_ENTRY
# <statment>
# We might get "got one of the expected errors".
# There are situations where the statement must be successful.
# c) --disable_abort_on_error
# <statment>
# --enable_abort_on_error
# And nothing extra
# We do not abort in case of unexpected server errors.
#
# Final solution:
# --disable_abort_on_error
# <statment>
# --enable_abort_on_error
# Check via error number if the error is not totally unexpected.
# The sub tests use $ER_DUP_KEY, $ER_DUP_ENTRY, etc.
# Assignment of values happen in this file.
#
#
# 3. How to analyze a partitioning bug revealed with these tests/ How to build
# a small replay script from the monstrous protocols ?
#------------------------------------------------------------------------------#
# a) crash -- use the file var/mysqld.1/data/mysql/general_log.CSV
# b) no crash, but unexpected server response (there is no "reject file)
# -- use the file r/<testcase>.log
# Please be aware that the option $debug= 0 suppresses the
# protocolling of some queries.
# c) no crash, but unexpected result set
# -- use the file r/<testcase>.reject
# Please be aware that the option $debug= 0 suppresses the
# protocolling of some queries.
# In most cases you will find that the r/<testcase>.<log/reject> contains at
# least a line "# # check <something>: 0".
# That means that a check within inc/partition_check did not got the
# expected result.
# A good start for a replay script would be
# 1. Copy t/partition_<feature>_<engine>.test to t/my_test.test
# 2. Edit t/my_test.test
# - set $debug to 1
# - replace the line
# "--source inc/partition_<feature>.inc"
# with all statements between the last
# CREATE TABLE t1 statement (included this)
# and the line
# "# Start usability test (inc/partition_check.inc)"
# - add the content of inc/partition_check.inc at the end.
#
# Please excuse that the partitioning tests generate such huge protocols which
# and are not very handy when it comes to bug analysis. I tried to squeez out
# as much test coverage as possible by writing some hopefully smart routines
# and reusing them in various combinations.
#
# Matthias
#
}