mirror of
https://github.com/MariaDB/server.git
synced 2026-05-07 23:54:31 +02:00
Merge lp:maria -> lp:~maria-captains/maria/maria-5.1-merge
This commit is contained in:
Sergey Petrunya
commit
151e5d586c
190 changed files with 9424 additions and 3375 deletions
|
|
@ -1920,3 +1920,4 @@ sql/share/swedish
|
|||
sql/share/ukrainian
|
||||
libmysqld/examples/mysqltest.cc
|
||||
extra/libevent/event-config.h
|
||||
libmysqld/opt_table_elimination.cc
|
||||
|
|
|
|||
|
|
@ -71,12 +71,16 @@ EXTRA_DIST = FINISH.sh \
|
|||
compile-ppc-max \
|
||||
compile-solaris-amd64 \
|
||||
compile-solaris-amd64-debug \
|
||||
compile-solaris-amd64-debug-forte \
|
||||
compile-solaris-amd64-forte \
|
||||
compile-solaris-amd64-forte-debug \
|
||||
compile-solaris-sparc \
|
||||
compile-solaris-sparc-debug \
|
||||
compile-solaris-sparc-forte \
|
||||
compile-solaris-sparc-purify
|
||||
compile-solaris-sparc-purify \
|
||||
compile-solaris-x86-32 \
|
||||
compile-solaris-x86-32-debug \
|
||||
compile-solaris-x86-32-debug-forte \
|
||||
compile-solaris-x86-forte-32
|
||||
|
||||
# Don't update the files from bitkeeper
|
||||
%::SCCS/s.%
|
||||
|
|
|
|||
|
|
@ -1,86 +1,35 @@
|
|||
This file should contain all know fatal bugs in the Maria storage
|
||||
engine for the last source or binary release. Minor bugs, extensions
|
||||
and feature request and bugs found since this release can be find in the
|
||||
MySQL bugs databases at: http://bugs.mysql.com/ (category "Maria
|
||||
storage engine").
|
||||
This file should contain all know fatal bugs in the Mariadb and the
|
||||
Maria storage engine for the last source or binary release. Minor
|
||||
bugs, extensions and feature request and bugs found since this release
|
||||
can be find in the MariaDB bugs database at:
|
||||
https://bugs.launchpad.net/maria and in the MySQL bugs databases at:
|
||||
http://bugs.mysql.com/ (category "Maria storage engine").
|
||||
|
||||
There shouldn't normally be any bugs that affects normal operations in
|
||||
any Maria release. Still, there are always exceptions and edge cases
|
||||
any MariaDB release. Still, there are always exceptions and edge cases
|
||||
and that's what this file is for.
|
||||
|
||||
For the first few Alpha releases of Maria there may be some edge cases
|
||||
that crashes during recovery; We don't like that but we think it's
|
||||
better to get the Maria alpha out early to get things tested and get
|
||||
more developers on the code early than wait until these are fixed. We
|
||||
do however think that the bugs are not seriously enough to stop anyone
|
||||
from starting to test and even use Maria for real (as long as they are
|
||||
prepared to upgrade to next MySQL-Maria release ASAP).
|
||||
|
||||
If you have found a bug that is not listed here, please add it to
|
||||
http://bugs.mysql.com/ so that we can either fix it for next release
|
||||
or in the worst case add it here for others to know!
|
||||
http://bugs.launchpad.net/maria so that we can either fix it for next
|
||||
release or in the worst case add it here for others to know!
|
||||
|
||||
IMPORTANT:
|
||||
|
||||
If you have been using a MySQL-5.1-Maria-alpha build and upgrading to
|
||||
MySQL-5.1-Maria-beta you MUST run maria_chk --recover on all your
|
||||
Maria tables. This is because we made an incompatible change of how
|
||||
transaction id is stored and old transaction id's must be reset!
|
||||
If you have been using the Maria storage engine with
|
||||
MySQL-5.1-Maria-alpha build and upgrading to a newer MariaDB you MUST
|
||||
run maria_chk --recover on all your Maria tables. This is because we
|
||||
made an incompatible change of how transaction id is stored and old
|
||||
transaction id's must be reset!
|
||||
|
||||
cd mysql-data-directory
|
||||
maria_chk --recover */*.MAI
|
||||
|
||||
As the Maria-1.5 engine is now in beta we will do our best to not
|
||||
As the Maria storage engine is now in beta we will do our best to not
|
||||
introduce any incompatible changes in the data format for the Maria
|
||||
tables; If this would be ever be needed, we will, if possible, support
|
||||
both the old and the new version to make upgrades as easy as possible.
|
||||
|
||||
Known bugs that we are working on and will be fixed shortly
|
||||
===========================================================
|
||||
|
||||
- We have some time ago some instabilities in log writing that is was
|
||||
under investigation but we haven't been able to repeat in a while.
|
||||
This causes mainly assert to triggers in the code and sometimes
|
||||
the log handler doesn't start up after restart.
|
||||
Most of this should now be fixed.
|
||||
|
||||
- INSERT on a duplicate key against a key inserted by another connection
|
||||
that has not yet ended will give a duplicate key error instead of
|
||||
waiting for the other statement to end.
|
||||
|
||||
|
||||
Known bugs that are planned to be fixed before Gamma/RC
|
||||
=======================================================
|
||||
|
||||
- If we get a write failure on disk (disk full or disk error) for the
|
||||
log, we should stop all usage of transactional tables and mark all
|
||||
transactional tables that are changed as crashed.
|
||||
For the moment, if this happens, you have to take down mysqld,
|
||||
remove all logs, restart mysqld and repair your tables.
|
||||
|
||||
If you get the related error:
|
||||
"Disk is full writing '/usr/local/mysql/var/maria_log.????????' (Errcode: 28)
|
||||
Waiting for someone to free space..."
|
||||
you should either free disk space, in which Maria will continue as before
|
||||
or kill mysqld, remove logs and repair tables.
|
||||
|
||||
|
||||
Known bugs that are planned to be fixed later
|
||||
=============================================
|
||||
|
||||
LOCK TABLES .. WRITE CONCURRENT is mainly done for testing MVCC. Don't
|
||||
use this in production.
|
||||
|
||||
Missing features that is planned to fix before Beta
|
||||
===================================================
|
||||
|
||||
None
|
||||
|
||||
Features planned for future releases
|
||||
====================================
|
||||
|
||||
Most notable is full transaction support and multiple reader/writers
|
||||
in Maria 2.0
|
||||
|
||||
http://forge.mysql.com/worklog/
|
||||
(you can enter "maria" in the "quick search" field there).
|
||||
Note that for the MariaDB 5.1 release the Maria storage engine is
|
||||
classified as 'beta'; It should work, but use it with caution. Please
|
||||
report all bugs to https://bugs.launchpad.net/maria so that we can fix
|
||||
them!
|
||||
|
|
|
|||
47
README
47
README
|
|
@ -1,10 +1,21 @@
|
|||
This is a release of MySQL, a dual-license SQL database server.
|
||||
This is a release of MariaDB, a branch of MySQL.
|
||||
MySQL is brought to you by the MySQL team at Sun Microsystems, Inc.
|
||||
|
||||
MariaDB is a drop-in replacement of MySQL, with more features, less
|
||||
bugs and better performance.
|
||||
|
||||
MariaDB is brought to you by many of the original developers of MySQL,
|
||||
that now work for Monty Program Ab, and by many people in the
|
||||
community.
|
||||
|
||||
MySQL, which is the base of MariaDB, is brought to you by Sun.
|
||||
|
||||
License information can be found in these files:
|
||||
- For GPL (free) distributions, see the COPYING file and
|
||||
the EXCEPTIONS-CLIENT file.
|
||||
- For commercial distributions, see the LICENSE.mysql file.
|
||||
|
||||
A description of the MariaDB project can be found at:
|
||||
http://askmonty.org/wiki/index.php/MariaDB
|
||||
|
||||
GPLv2 Disclaimer
|
||||
For the avoidance of doubt, except that if any license choice
|
||||
|
|
@ -15,36 +26,34 @@ is made available with the language indicating that GPLv2 or any
|
|||
later version may be used, or where a choice of which version of
|
||||
the GPL is applied is otherwise unspecified.
|
||||
|
||||
For further information about MySQL or additional documentation, see:
|
||||
- The latest information about MySQL: http://www.mysql.com
|
||||
- The current MySQL documentation: http://dev.mysql.com/doc
|
||||
The differences between MariaDB and MySQL can be found at:
|
||||
http://askmonty.org/wiki/index.php/MariaDB_versus_MySQL
|
||||
|
||||
Documentation about MySQL can be found at:
|
||||
http://dev.mysql.com/doc
|
||||
|
||||
For further information about MySQL documentation, see:
|
||||
- The current MySQL documentation:
|
||||
|
||||
Some manual sections of special interest:
|
||||
|
||||
- If you are migrating from an older version of MySQL, please read the
|
||||
"Upgrading from..." section first!
|
||||
- To see what MySQL can do, take a look at the features section.
|
||||
- For installation instructions, see the Installing and Upgrading
|
||||
chapter.
|
||||
- For the new features/bugfix history, see the Change History appendix.
|
||||
- For the currently known bugs/misfeatures (known errors) see the
|
||||
Problems
|
||||
and Common Errors appendix.
|
||||
|
||||
|
||||
- For a list of developers and other contributors, see the Credits
|
||||
appendix.
|
||||
|
||||
A local copy of the MySQL Reference Manual can be found in the Docs
|
||||
directory in GNU Info format. You can also browse the manual online or
|
||||
download it in any of several formats at the URL given earlier in this
|
||||
file.
|
||||
download it in any of several formats from
|
||||
http://dev.mysql.com/doc
|
||||
|
||||
************************************************************
|
||||
|
||||
IMPORTANT:
|
||||
|
||||
Bug or error reports should be sent to http://bugs.mysql.com.
|
||||
|
||||
|
||||
Bug or error reports regarding MariaDB should be sent to
|
||||
https://bugs.launchpad.net/maria
|
||||
Bugs in the MySQL code can also be sent to http://bugs.mysql.com
|
||||
***************************************************************************
|
||||
|
||||
%%The following software may be included in this product:
|
||||
|
|
|
|||
|
|
@ -601,15 +601,15 @@ dnl ---------------------------------------------------------------------------
|
|||
|
||||
dnl MYSQL_NEEDS_MYSYS_NEW
|
||||
AC_DEFUN([MYSQL_NEEDS_MYSYS_NEW],
|
||||
[AC_CACHE_CHECK([needs mysys_new helpers], mysql_use_mysys_new,
|
||||
[AC_CACHE_CHECK([needs mysys_new helpers], mysql_cv_use_mysys_new,
|
||||
[
|
||||
AC_LANG_PUSH(C++)
|
||||
AC_TRY_LINK([], [
|
||||
class A { public: int b; }; A *a=new A; a->b=10; delete a;
|
||||
], mysql_use_mysys_new=no, mysql_use_mysys_new=yes)
|
||||
], mysql_cv_use_mysys_new=no, mysql_cv_use_mysys_new=yes)
|
||||
AC_LANG_POP(C++)
|
||||
])
|
||||
if test "$mysql_use_mysys_new" = "yes"
|
||||
if test "$mysql_cv_use_mysys_new" = "yes"
|
||||
then
|
||||
AC_DEFINE([USE_MYSYS_NEW], [1], [Needs to use mysys_new helpers])
|
||||
fi
|
||||
|
|
|
|||
|
|
@ -441,7 +441,7 @@ public:
|
|||
const Ciphers& GetCiphers() const;
|
||||
const DH_Parms& GetDH_Parms() const;
|
||||
const Stats& GetStats() const;
|
||||
const VerifyCallback getVerifyCallback() const;
|
||||
VerifyCallback getVerifyCallback() const;
|
||||
pem_password_cb GetPasswordCb() const;
|
||||
void* GetUserData() const;
|
||||
bool GetSessionCacheOff() const;
|
||||
|
|
|
|||
|
|
@ -789,7 +789,7 @@ void processReply(SSL& ssl)
|
|||
{
|
||||
if (ssl.GetError()) return;
|
||||
|
||||
if (DoProcessReply(ssl))
|
||||
if (DoProcessReply(ssl)) {
|
||||
{
|
||||
// didn't complete process
|
||||
if (!ssl.getSocket().IsNonBlocking()) {
|
||||
|
|
@ -874,7 +874,7 @@ void sendServerKeyExchange(SSL& ssl, BufferOutput buffer)
|
|||
// send change cipher
|
||||
void sendChangeCipher(SSL& ssl, BufferOutput buffer)
|
||||
{
|
||||
if (ssl.getSecurity().get_parms().entity_ == server_end)
|
||||
if (ssl.getSecurity().get_parms().entity_ == server_end) {
|
||||
{
|
||||
if (ssl.getSecurity().get_resuming())
|
||||
ssl.verifyState(clientKeyExchangeComplete);
|
||||
|
|
|
|||
|
|
@ -1304,7 +1304,7 @@ void ServerHello::Process(input_buffer&, SSL& ssl)
|
|||
else
|
||||
ssl.useSecurity().use_connection().sessionID_Set_ = false;
|
||||
|
||||
if (ssl.getSecurity().get_resuming())
|
||||
if (ssl.getSecurity().get_resuming()) {
|
||||
{
|
||||
if (memcmp(session_id_, ssl.getSecurity().get_resume().GetID(),
|
||||
ID_LEN) == 0) {
|
||||
|
|
|
|||
|
|
@ -1833,7 +1833,7 @@ SSL_CTX::GetCA_List() const
|
|||
}
|
||||
|
||||
|
||||
const VerifyCallback SSL_CTX::getVerifyCallback() const
|
||||
VerifyCallback SSL_CTX::getVerifyCallback() const
|
||||
{
|
||||
return verifyCallback_;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -95,7 +95,7 @@ inline void Mode_BASE::Process(byte* out, const byte* in, word32 sz)
|
|||
{
|
||||
if (mode_ == ECB)
|
||||
ECB_Process(out, in, sz);
|
||||
else if (mode_ == CBC)
|
||||
else if (mode_ == CBC) {
|
||||
{
|
||||
if (dir_ == ENCRYPTION)
|
||||
CBC_Encrypt(out, in, sz);
|
||||
|
|
|
|||
|
|
@ -1063,7 +1063,7 @@ word32 DecodeDSA_Signature(byte* decoded, const byte* encoded, word32 sz)
|
|||
return 0;
|
||||
}
|
||||
word32 rLen = GetLength(source);
|
||||
if (rLen != 20)
|
||||
if (rLen != 20) {
|
||||
{
|
||||
if (rLen == 21) { // zero at front, eat
|
||||
source.next();
|
||||
|
|
@ -1087,7 +1087,7 @@ word32 DecodeDSA_Signature(byte* decoded, const byte* encoded, word32 sz)
|
|||
return 0;
|
||||
}
|
||||
word32 sLen = GetLength(source);
|
||||
if (sLen != 20)
|
||||
if (sLen != 20) {
|
||||
{
|
||||
if (sLen == 21) {
|
||||
source.next(); // zero at front, eat
|
||||
|
|
|
|||
|
|
@ -926,8 +926,7 @@ typedef long long my_ptrdiff_t;
|
|||
#define MY_ALIGN(A,L) (((A) + (L) - 1) & ~((L) - 1))
|
||||
#define ALIGN_SIZE(A) MY_ALIGN((A),sizeof(double))
|
||||
/* Size to make adressable obj. */
|
||||
#define ALIGN_PTR(A, t) ((t*) MY_ALIGN((A),sizeof(t)))
|
||||
/* Offset of field f in structure t */
|
||||
#define ALIGN_PTR(A, t) ((t*) MY_ALIGN((A), sizeof(double)))
|
||||
#define OFFSET(t, f) ((size_t)(char *)&((t *)0)->f)
|
||||
#define ADD_TO_PTR(ptr,size,type) (type) ((uchar*) (ptr)+size)
|
||||
#define PTR_BYTE_DIFF(A,B) (my_ptrdiff_t) ((uchar*) (A) - (uchar*) (B))
|
||||
|
|
|
|||
|
|
@ -76,7 +76,7 @@ sqlsources = derror.cc field.cc field_conv.cc strfunc.cc filesort.cc \
|
|||
rpl_filter.cc sql_partition.cc sql_builtin.cc sql_plugin.cc \
|
||||
sql_tablespace.cc \
|
||||
rpl_injector.cc my_user.c partition_info.cc \
|
||||
sql_servers.cc event_parse_data.cc
|
||||
sql_servers.cc event_parse_data.cc opt_table_elimination.cc
|
||||
|
||||
libmysqld_int_a_SOURCES= $(libmysqld_sources)
|
||||
nodist_libmysqld_int_a_SOURCES= $(libmysqlsources) $(sqlsources)
|
||||
|
|
|
|||
|
|
@ -20,6 +20,8 @@
|
|||
|
||||
use strict;
|
||||
|
||||
our $basedir;
|
||||
|
||||
sub gcov_prepare ($) {
|
||||
my ($dir)= @_;
|
||||
print "Purging gcov information from '$dir'...\n";
|
||||
|
|
@ -42,7 +44,7 @@ sub gcov_collect ($$$) {
|
|||
# Get current directory to return to later.
|
||||
my $start_dir= cwd();
|
||||
|
||||
print "Collecting source coverage info using '$gcov'...\n";
|
||||
print "Collecting source coverage info using '$gcov'...$basedir\n";
|
||||
-f "$start_dir/$gcov_msg" and unlink("$start_dir/$gcov_msg");
|
||||
-f "$start_dir/$gcov_err" and unlink("$start_dir/$gcov_err");
|
||||
|
||||
|
|
@ -62,6 +64,7 @@ sub gcov_collect ($$$) {
|
|||
$dir_reported= 1;
|
||||
}
|
||||
system("$gcov $f 2>>$start_dir/$gcov_err >>$start_dir/$gcov_msg");
|
||||
system("perl $basedir/mysql-test/lib/process-purecov-annotations.pl $f.gcov");
|
||||
}
|
||||
chdir($start_dir);
|
||||
}
|
||||
|
|
|
|||
64
mysql-test/lib/process-purecov-annotations.pl
Executable file
64
mysql-test/lib/process-purecov-annotations.pl
Executable file
|
|
@ -0,0 +1,64 @@
|
|||
#!/usr/bin/perl
|
||||
# -*- cperl -*-
|
||||
|
||||
# This script processes a .gcov coverage report to honor purecov
|
||||
# annotations: lines marked as inspected or as deadcode are changed
|
||||
# from looking like lines with code that was never executed to look
|
||||
# like lines that have no executable code.
|
||||
|
||||
use strict;
|
||||
use warnings;
|
||||
|
||||
foreach my $in_file_name ( @ARGV )
|
||||
{
|
||||
my $out_file_name=$in_file_name . ".tmp";
|
||||
my $skipping=0;
|
||||
|
||||
open(IN, "<", $in_file_name) || next;
|
||||
open(OUT, ">", $out_file_name);
|
||||
while(<IN>)
|
||||
{
|
||||
my $line= $_;
|
||||
my $check= $line;
|
||||
|
||||
# process purecov: start/end multi-blocks
|
||||
my $started=0;
|
||||
my $ended= 0;
|
||||
while (($started=($check =~ s/purecov: *begin *(deadcode|inspected)//)) ||
|
||||
($ended=($check =~ s/purecov: *end//)))
|
||||
{
|
||||
$skipping= $skipping + $started - $ended;
|
||||
}
|
||||
if ($skipping < 0)
|
||||
{
|
||||
print OUT "WARNING: #####: incorrect order of purecov begin/end annotations\n";
|
||||
$skipping= 0;
|
||||
}
|
||||
|
||||
# Besides purecov annotations, also remove uncovered code mark from cases
|
||||
# like the following:
|
||||
#
|
||||
# -: 211:*/
|
||||
# -: 212:class Field_value : public Value_dep
|
||||
# #####: 213:{
|
||||
# -: 214:public:
|
||||
#
|
||||
# I have no idea why would gcov think there is uncovered code there
|
||||
#
|
||||
my @arr= split(/:/, $line);
|
||||
if ($skipping || $line =~ /purecov: *(inspected|deadcode)/ ||
|
||||
$arr[2] =~ m/^{ */)
|
||||
{
|
||||
# Change '####' to '-'.
|
||||
$arr[0] =~ s/#####/ -/g;
|
||||
$line= join(":", @arr);
|
||||
}
|
||||
print OUT $line;
|
||||
}
|
||||
close(IN);
|
||||
close(OUT);
|
||||
system("cat $out_file_name > $in_file_name");
|
||||
system("rm $out_file_name");
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -170,6 +170,7 @@ our $opt_force;
|
|||
our $opt_mem= $ENV{'MTR_MEM'};
|
||||
|
||||
our $opt_gcov;
|
||||
our $opt_gcov_src_dir;
|
||||
our $opt_gcov_exe= "gcov";
|
||||
our $opt_gcov_err= "mysql-test-gcov.msg";
|
||||
our $opt_gcov_msg= "mysql-test-gcov.err";
|
||||
|
|
@ -272,7 +273,7 @@ sub main {
|
|||
command_line_setup();
|
||||
|
||||
if ( $opt_gcov ) {
|
||||
gcov_prepare($basedir);
|
||||
gcov_prepare($basedir . "/" . $opt_gcov_src_dir);
|
||||
}
|
||||
|
||||
if (!$opt_suites) {
|
||||
|
|
@ -418,7 +419,7 @@ sub main {
|
|||
mtr_print_line();
|
||||
|
||||
if ( $opt_gcov ) {
|
||||
gcov_collect($basedir, $opt_gcov_exe,
|
||||
gcov_collect($basedir . "/" . $opt_gcov_src_dir, $opt_gcov_exe,
|
||||
$opt_gcov_msg, $opt_gcov_err);
|
||||
}
|
||||
|
||||
|
|
@ -890,6 +891,7 @@ sub command_line_setup {
|
|||
|
||||
# Coverage, profiling etc
|
||||
'gcov' => \$opt_gcov,
|
||||
'gcov-src-dir=s' => \$opt_gcov_src_dir,
|
||||
'valgrind|valgrind-all' => \$opt_valgrind,
|
||||
'valgrind-mysqltest' => \$opt_valgrind_mysqltest,
|
||||
'valgrind-mysqld' => \$opt_valgrind_mysqld,
|
||||
|
|
@ -1799,6 +1801,20 @@ sub tool_arguments ($$) {
|
|||
return mtr_args2str($exe, @$args);
|
||||
}
|
||||
|
||||
# This is not used to actually start a mysqld server, just to allow test
|
||||
# scripts to run the mysqld binary to test invalid server startup options.
|
||||
sub mysqld_client_arguments () {
|
||||
my $default_mysqld= default_mysqld();
|
||||
my $exe = find_mysqld($basedir);
|
||||
my $args;
|
||||
mtr_init_args(\$args);
|
||||
mtr_add_arg($args, "--no-defaults");
|
||||
mtr_add_arg($args, "--basedir=%s", $basedir);
|
||||
mtr_add_arg($args, "--character-sets-dir=%s", $default_mysqld->value("character-sets-dir"));
|
||||
mtr_add_arg($args, "--language=%s", $default_mysqld->value("language"));
|
||||
return mtr_args2str($exe, @$args);
|
||||
}
|
||||
|
||||
|
||||
sub have_maria_support () {
|
||||
my $maria_var= $mysqld_variables{'maria'};
|
||||
|
|
@ -2008,6 +2024,7 @@ sub environment_setup {
|
|||
$ENV{'MYSQLADMIN'}= native_path($exe_mysqladmin);
|
||||
$ENV{'MYSQL_CLIENT_TEST'}= mysql_client_test_arguments();
|
||||
$ENV{'MYSQL_FIX_SYSTEM_TABLES'}= mysql_fix_arguments();
|
||||
$ENV{'MYSQLD'}= mysqld_client_arguments();
|
||||
$ENV{'EXE_MYSQL'}= $exe_mysql;
|
||||
|
||||
# ----------------------------------------------------
|
||||
|
|
@ -5516,6 +5533,9 @@ Misc options
|
|||
actions. Disable facility with NUM=0.
|
||||
gcov Collect coverage information after the test.
|
||||
The result is a gcov file per source and header file.
|
||||
gcov-src-dir=subdir Colllect coverage only within the given subdirectory.
|
||||
For example, if you're only developing the SQL layer,
|
||||
it makes sense to use --gcov-src-dir=sql
|
||||
experimental=<file> Refer to list of tests considered experimental;
|
||||
failures will be marked exp-fail instead of fail.
|
||||
report-features First run a "test" that reports mysql features
|
||||
|
|
|
|||
60
mysql-test/r/log_slow.result
Normal file
60
mysql-test/r/log_slow.result
Normal file
|
|
@ -0,0 +1,60 @@
|
|||
select @@log_slow_filter;
|
||||
@@log_slow_filter
|
||||
|
||||
select @@log_slow_rate_limit;
|
||||
@@log_slow_rate_limit
|
||||
1
|
||||
select @@log_slow_verbosity;
|
||||
@@log_slow_verbosity
|
||||
|
||||
show variables like "log_slow%";
|
||||
Variable_name Value
|
||||
log_slow_filter
|
||||
log_slow_queries ON
|
||||
log_slow_rate_limit 1
|
||||
log_slow_time 10.000000
|
||||
log_slow_verbosity
|
||||
set @@log_slow_filter= "filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk,admin";
|
||||
select @@log_slow_filter;
|
||||
@@log_slow_filter
|
||||
admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk
|
||||
set @@log_slow_filter="admin,admin";
|
||||
select @@log_slow_filter;
|
||||
@@log_slow_filter
|
||||
admin
|
||||
set @@log_slow_filter=7;
|
||||
select @@log_slow_filter;
|
||||
@@log_slow_filter
|
||||
admin,filesort,filesort_on_disk
|
||||
set @@log_slow_filter= "filesort,impossible,impossible2,admin";
|
||||
ERROR 42000: Variable 'log_slow_filter' can't be set to the value of 'impossible'
|
||||
set @@log_slow_filter= "filesort, admin";
|
||||
ERROR 42000: Variable 'log_slow_filter' can't be set to the value of ' admin'
|
||||
set @@log_slow_filter= 1<<31;
|
||||
ERROR 42000: Variable 'log_slow_filter' can't be set to the value of '2147483648'
|
||||
select @@log_slow_filter;
|
||||
@@log_slow_filter
|
||||
admin,filesort,filesort_on_disk
|
||||
set @@log_slow_verbosity= "query_plan,innodb";
|
||||
select @@log_slow_verbosity;
|
||||
@@log_slow_verbosity
|
||||
innodb,query_plan
|
||||
set @@log_slow_verbosity=1;
|
||||
select @@log_slow_verbosity;
|
||||
@@log_slow_verbosity
|
||||
innodb
|
||||
show fields from mysql.slow_log;
|
||||
Field Type Null Key Default Extra
|
||||
start_time timestamp NO CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP
|
||||
user_host mediumtext NO NULL
|
||||
query_time time NO NULL
|
||||
lock_time time NO NULL
|
||||
rows_sent int(11) NO NULL
|
||||
rows_examined int(11) NO NULL
|
||||
db varchar(512) NO NULL
|
||||
last_insert_id int(11) NO NULL
|
||||
insert_id int(11) NO NULL
|
||||
server_id int(10) unsigned NO NULL
|
||||
sql_text mediumtext NO NULL
|
||||
set @@log_slow_filter=default;
|
||||
set @@log_slow_verbosity=default;
|
||||
|
|
@ -3,6 +3,9 @@ SET @old_max_allowed_packet= @@global.max_allowed_packet;
|
|||
SET @@global.max_allowed_packet = 2 * 1024 * 1024 + 1024;
|
||||
CREATE TABLE t1(data LONGBLOB);
|
||||
INSERT INTO t1 SELECT REPEAT('1', 2*1024*1024);
|
||||
SELECT COUNT(*) FROM t1;
|
||||
COUNT(*)
|
||||
1
|
||||
SET @old_general_log = @@global.general_log;
|
||||
SET @@global.general_log = 0;
|
||||
SET @@global.general_log = @old_general_log;
|
||||
|
|
|
|||
6
mysql-test/r/mysqld_option_err.result
Normal file
6
mysql-test/r/mysqld_option_err.result
Normal file
|
|
@ -0,0 +1,6 @@
|
|||
Test that unknown option is not silently ignored.
|
||||
Test bad binlog format.
|
||||
Test bad default storage engine.
|
||||
Test non-numeric value passed to number option.
|
||||
Test that bad value for plugin enum option is rejected correctly.
|
||||
Done.
|
||||
|
|
@ -121,8 +121,8 @@ insert into t1 values (1);
|
|||
explain select * from t1 where 3 in (select (1+1) union select 1);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||||
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL No tables used
|
||||
3 DEPENDENT UNION NULL NULL NULL NULL NULL NULL NULL No tables used
|
||||
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible HAVING
|
||||
3 DEPENDENT UNION NULL NULL NULL NULL NULL NULL NULL Impossible HAVING
|
||||
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
|
||||
select * from t1 where 3 in (select (1+1) union select 1);
|
||||
a
|
||||
|
|
|
|||
|
|
@ -3585,7 +3585,6 @@ INSERT INTO t2 VALUES (1,'a'),(2,'b'),(3,'c');
|
|||
EXPLAIN SELECT t1.a FROM t1 LEFT JOIN t2 ON t2.b=t1.b WHERE t1.a=3;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1
|
||||
1 SIMPLE t2 const b b 22 const 1 Using index
|
||||
DROP TABLE t1,t2;
|
||||
CREATE TABLE t1(id int PRIMARY KEY, b int, e int);
|
||||
CREATE TABLE t2(i int, a int, INDEX si(i), INDEX ai(a));
|
||||
|
|
|
|||
|
|
@ -4353,13 +4353,13 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
|
||||
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
|
||||
Warnings:
|
||||
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 AS `1` from `test`.`t1` group by `test`.`t1`.`a` having (<cache>(1) = <ref_null_helper>(1))))
|
||||
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 AS `1` from `test`.`t1` group by `test`.`t1`.`a` having 1))
|
||||
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||||
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary; Using filesort
|
||||
Warnings:
|
||||
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 AS `1` from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (<cache>(1) = <ref_null_helper>(1))))
|
||||
Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 AS `1` from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having 1))
|
||||
DROP TABLE t1;
|
||||
#
|
||||
# Bug#45061: Incorrectly market field caused wrong result.
|
||||
|
|
|
|||
420
mysql-test/r/table_elim.result
Normal file
420
mysql-test/r/table_elim.result
Normal file
|
|
@ -0,0 +1,420 @@
|
|||
drop table if exists t0, t1, t2, t3;
|
||||
drop view if exists v1, v2;
|
||||
create table t1 (a int);
|
||||
insert into t1 values (0),(1),(2),(3);
|
||||
create table t0 as select * from t1;
|
||||
create table t2 (a int primary key, b int)
|
||||
as select a, a as b from t1 where a in (1,2);
|
||||
create table t3 (a int primary key, b int)
|
||||
as select a, a as b from t1 where a in (1,3);
|
||||
# This will be eliminated:
|
||||
explain select t1.a from t1 left join t2 on t2.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
explain extended select t1.a from t1 left join t2 on t2.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 100.00
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where 1
|
||||
select t1.a from t1 left join t2 on t2.a=t1.a;
|
||||
a
|
||||
0
|
||||
1
|
||||
2
|
||||
3
|
||||
# This will not be eliminated as t2.b is in in select list:
|
||||
explain select * from t1 left join t2 on t2.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1
|
||||
# This will not be eliminated as t2.b is in in order list:
|
||||
explain select t1.a from t1 left join t2 on t2.a=t1.a order by t2.b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using temporary; Using filesort
|
||||
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1
|
||||
# This will not be eliminated as t2.b is in group list:
|
||||
explain select t1.a from t1 left join t2 on t2.a=t1.a group by t2.b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using temporary; Using filesort
|
||||
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1
|
||||
# This will not be eliminated as t2.b is in the WHERE
|
||||
explain select t1.a from t1 left join t2 on t2.a=t1.a where t2.b < 3 or t2.b is null;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where
|
||||
# Elimination of multiple tables:
|
||||
explain select t1.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
# Elimination of multiple tables (2):
|
||||
explain select t1.a from t1 left join (t2 join t3 on t2.b=t3.b) on t2.a=t1.a and t3.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
# Elimination when done within an outer join nest:
|
||||
explain extended
|
||||
select t0.*
|
||||
from
|
||||
t0 left join (t1 left join (t2 join t3 on t2.b=t3.b) on t2.a=t1.a and
|
||||
t3.a=t1.a) on t0.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t0 ALL NULL NULL NULL NULL 4 100.00
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 100.00
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t0`.`a` AS `a` from `test`.`t0` left join (`test`.`t1`) on((`test`.`t0`.`a` = `test`.`t1`.`a`)) where 1
|
||||
# Elimination with aggregate functions
|
||||
explain select count(*) from t1 left join t2 on t2.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
explain select count(1) from t1 left join t2 on t2.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
explain select count(1) from t1 left join t2 on t2.a=t1.a group by t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using temporary; Using filesort
|
||||
This must not use elimination:
|
||||
explain select count(1) from t1 left join t2 on t2.a=t1.a group by t2.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using temporary; Using filesort
|
||||
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using index
|
||||
drop table t0, t1, t2, t3;
|
||||
create table t0 ( id integer, primary key (id));
|
||||
create table t1 (
|
||||
id integer,
|
||||
attr1 integer,
|
||||
primary key (id),
|
||||
key (attr1)
|
||||
);
|
||||
create table t2 (
|
||||
id integer,
|
||||
attr2 integer,
|
||||
fromdate date,
|
||||
primary key (id, fromdate),
|
||||
key (attr2,fromdate)
|
||||
);
|
||||
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
||||
insert into t0 select A.id + 10*B.id from t0 A, t0 B where B.id > 0;
|
||||
insert into t1 select id, id from t0;
|
||||
insert into t2 select id, id, date_add('2009-06-22', interval id day) from t0;
|
||||
insert into t2 select id, id+1, date_add('2008-06-22', interval id day) from t0;
|
||||
create view v1 as
|
||||
select
|
||||
F.id, A1.attr1, A2.attr2
|
||||
from
|
||||
t0 F
|
||||
left join t1 A1 on A1.id=F.id
|
||||
left join t2 A2 on A2.id=F.id and
|
||||
A2.fromdate=(select MAX(fromdate) from
|
||||
t2 where id=A2.id);
|
||||
create view v2 as
|
||||
select
|
||||
F.id, A1.attr1, A2.attr2
|
||||
from
|
||||
t0 F
|
||||
left join t1 A1 on A1.id=F.id
|
||||
left join t2 A2 on A2.id=F.id and
|
||||
A2.fromdate=(select MAX(fromdate) from
|
||||
t2 where id=F.id);
|
||||
This should use one table:
|
||||
explain select id from v1 where id=2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY F const PRIMARY PRIMARY 4 const 1 Using index
|
||||
This should use one table:
|
||||
explain extended select id from v1 where id in (1,2,3,4);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY F range PRIMARY PRIMARY 4 NULL 4 100.00 Using where; Using index
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.A2.id' of SELECT #3 was resolved in SELECT #1
|
||||
Note 1003 select `F`.`id` AS `id` from `test`.`t0` `F` where (`F`.`id` in (1,2,3,4))
|
||||
This should use facts and A1 tables:
|
||||
explain extended select id from v1 where attr1 between 12 and 14;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY A1 range PRIMARY,attr1 attr1 5 NULL 2 100.00 Using where
|
||||
1 PRIMARY F eq_ref PRIMARY PRIMARY 4 test.A1.id 1 100.00 Using index
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.A2.id' of SELECT #3 was resolved in SELECT #1
|
||||
Note 1003 select `F`.`id` AS `id` from `test`.`t0` `F` join `test`.`t1` `A1` where ((`F`.`id` = `A1`.`id`) and (`A1`.`attr1` between 12 and 14))
|
||||
This should use facts, A2 and its subquery:
|
||||
explain extended select id from v1 where attr2 between 12 and 14;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY A2 range PRIMARY,attr2 attr2 5 NULL 5 100.00 Using where
|
||||
1 PRIMARY F eq_ref PRIMARY PRIMARY 4 test.A2.id 1 100.00 Using index
|
||||
3 DEPENDENT SUBQUERY t2 ref PRIMARY PRIMARY 4 test.A2.id 2 100.00 Using index
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.A2.id' of SELECT #3 was resolved in SELECT #1
|
||||
Note 1003 select `F`.`id` AS `id` from `test`.`t0` `F` join `test`.`t2` `A2` where ((`F`.`id` = `A2`.`id`) and (`A2`.`attr2` between 12 and 14) and (`A2`.`fromdate` = (select max(`test`.`t2`.`fromdate`) AS `MAX(fromdate)` from `test`.`t2` where (`test`.`t2`.`id` = `A2`.`id`))))
|
||||
This should use one table:
|
||||
explain select id from v2 where id=2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY F const PRIMARY PRIMARY 4 const 1 Using index
|
||||
This should use one table:
|
||||
explain extended select id from v2 where id in (1,2,3,4);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY F range PRIMARY PRIMARY 4 NULL 4 100.00 Using where; Using index
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.F.id' of SELECT #3 was resolved in SELECT #1
|
||||
Note 1003 select `F`.`id` AS `id` from `test`.`t0` `F` where (`F`.`id` in (1,2,3,4))
|
||||
This should use facts and A1 tables:
|
||||
explain extended select id from v2 where attr1 between 12 and 14;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY A1 range PRIMARY,attr1 attr1 5 NULL 2 100.00 Using where
|
||||
1 PRIMARY F eq_ref PRIMARY PRIMARY 4 test.A1.id 1 100.00 Using index
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.F.id' of SELECT #3 was resolved in SELECT #1
|
||||
Note 1003 select `F`.`id` AS `id` from `test`.`t0` `F` join `test`.`t1` `A1` where ((`F`.`id` = `A1`.`id`) and (`A1`.`attr1` between 12 and 14))
|
||||
This should use facts, A2 and its subquery:
|
||||
explain extended select id from v2 where attr2 between 12 and 14;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY A2 range PRIMARY,attr2 attr2 5 NULL 5 100.00 Using where
|
||||
1 PRIMARY F eq_ref PRIMARY PRIMARY 4 test.A2.id 1 100.00 Using where; Using index
|
||||
3 DEPENDENT SUBQUERY t2 ref PRIMARY PRIMARY 4 test.F.id 2 100.00 Using index
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.F.id' of SELECT #3 was resolved in SELECT #1
|
||||
Note 1003 select `F`.`id` AS `id` from `test`.`t0` `F` join `test`.`t2` `A2` where ((`F`.`id` = `A2`.`id`) and (`A2`.`attr2` between 12 and 14) and (`A2`.`fromdate` = (select max(`test`.`t2`.`fromdate`) AS `MAX(fromdate)` from `test`.`t2` where (`test`.`t2`.`id` = `F`.`id`))))
|
||||
drop view v1, v2;
|
||||
drop table t0, t1, t2;
|
||||
create table t1 (a int);
|
||||
insert into t1 values (0),(1),(2),(3);
|
||||
create table t2 (pk1 int, pk2 int, pk3 int, col int, primary key(pk1, pk2, pk3));
|
||||
insert into t2 select a,a,a,a from t1;
|
||||
This must use only t1:
|
||||
explain select t1.* from t1 left join t2 on t2.pk1=t1.a and
|
||||
t2.pk2=t2.pk1+1 and
|
||||
t2.pk3=t2.pk2+1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
This must use only t1:
|
||||
explain select t1.* from t1 left join t2 on t2.pk1=t1.a and
|
||||
t2.pk3=t2.pk1+1 and
|
||||
t2.pk2=t2.pk3+1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
This must use both:
|
||||
explain select t1.* from t1 left join t2 on t2.pk1=t1.a and
|
||||
t2.pk3=t2.pk1+1 and
|
||||
t2.pk2=t2.pk3+t2.col;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 ref PRIMARY PRIMARY 4 test.t1.a 1
|
||||
This must use only t1:
|
||||
explain select t1.* from t1 left join t2 on t2.pk2=t1.a and
|
||||
t2.pk1=t2.pk2+1 and
|
||||
t2.pk3=t2.pk1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
drop table t1, t2;
|
||||
create table t1 (pk int primary key, col int);
|
||||
insert into t1 values (1,1),(2,2);
|
||||
create table t2 like t1;
|
||||
insert into t2 select * from t1;
|
||||
create table t3 like t1;
|
||||
insert into t3 select * from t1;
|
||||
explain
|
||||
select t1.* from t1 left join ( t2 left join t3 on t3.pk=t2.col) on t2.col=t1.col;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 2
|
||||
explain
|
||||
select t1.*, t2.* from t1 left join (t2 left join t3 on t3.pk=t2.col) on t2.pk=t1.col;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
|
||||
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.col 1
|
||||
explain select t1.*
|
||||
from
|
||||
t1 left join ( t2 left join t3 on t3.pk=t2.col or t3.pk=t2.col)
|
||||
on t2.col=t1.col or t2.col=t1.col;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 2
|
||||
explain select t1.*, t2.*
|
||||
from
|
||||
t1 left join
|
||||
(t2 left join t3 on t3.pk=t2.col or t3.pk=t2.col)
|
||||
on t2.pk=t1.col or t2.pk=t1.col;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
|
||||
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.col 1
|
||||
drop table t1, t2, t3;
|
||||
#
|
||||
# Check things that look like functional dependencies but really are not
|
||||
#
|
||||
create table t1 (a char(10) character set latin1 collate latin1_general_ci primary key);
|
||||
insert into t1 values ('foo');
|
||||
insert into t1 values ('bar');
|
||||
create table t2 (a char(10) character set latin1 collate latin1_general_cs primary key);
|
||||
insert into t2 values ('foo');
|
||||
insert into t2 values ('FOO');
|
||||
this must not use table elimination:
|
||||
explain select t1.* from t1 left join t2 on t2.a='foo' collate latin1_general_ci;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index NULL PRIMARY 10 NULL 2 Using index
|
||||
1 SIMPLE t2 index PRIMARY PRIMARY 10 NULL 2 Using index
|
||||
this must not use table elimination:
|
||||
explain select t1.* from t1 left join t2 on t2.a=t1.a collate latin1_general_ci;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index NULL PRIMARY 10 NULL 2 Using index
|
||||
1 SIMPLE t2 index PRIMARY PRIMARY 10 NULL 2 Using index
|
||||
drop table t1,t2;
|
||||
create table t1 (a int primary key);
|
||||
insert into t1 values (1),(2);
|
||||
create table t2 (a char(10) primary key);
|
||||
insert into t2 values ('1'),('1.0');
|
||||
this must not use table elimination:
|
||||
explain select t1.* from t1 left join t2 on t2.a=1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index NULL PRIMARY 4 NULL 2 Using index
|
||||
1 SIMPLE t2 index PRIMARY PRIMARY 10 NULL 2 Using index
|
||||
this must not use table elimination:
|
||||
explain select t1.* from t1 left join t2 on t2.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index NULL PRIMARY 4 NULL 2 Using index
|
||||
1 SIMPLE t2 index PRIMARY PRIMARY 10 NULL 2 Using index
|
||||
drop table t1, t2;
|
||||
create table t1 (a char(10) primary key);
|
||||
insert into t1 values ('foo'),('bar');
|
||||
create table t2 (a char(10), unique key(a(2)));
|
||||
insert into t2 values ('foo'),('bar');
|
||||
explain select t1.* from t1 left join t2 on t2.a=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index NULL PRIMARY 10 NULL 2 Using index
|
||||
1 SIMPLE t2 ref a a 3 test.t1.a 2
|
||||
drop table t1, t2;
|
||||
#
|
||||
# check UPDATE/DELETE that look like they could be eliminated
|
||||
#
|
||||
create table t1 (a int primary key, b int);
|
||||
insert into t1 values (1,1),(2,2),(3,3);
|
||||
create table t2 like t1;
|
||||
insert into t2 select * from t1;
|
||||
update t1 left join t2 using (a) set t2.a=t2.a+100;
|
||||
select * from t1;
|
||||
a b
|
||||
1 1
|
||||
2 2
|
||||
3 3
|
||||
select * from t2;
|
||||
a b
|
||||
101 1
|
||||
102 2
|
||||
103 3
|
||||
delete from t2;
|
||||
insert into t2 select * from t1;
|
||||
delete t2 from t1 left join t2 using (a);
|
||||
select * from t1;
|
||||
a b
|
||||
1 1
|
||||
2 2
|
||||
3 3
|
||||
select * from t2;
|
||||
a b
|
||||
drop table t1, t2;
|
||||
#
|
||||
# Tests with various edge-case ON expressions
|
||||
#
|
||||
create table t1 (a int, b int, c int, d int);
|
||||
insert into t1 values (0,0,0,0),(1,1,1,1),(2,2,2,2),(3,3,3,3);
|
||||
create table t2 (pk int primary key, b int)
|
||||
as select a as pk, a as b from t1 where a in (1,2);
|
||||
create table t3 (pk1 int, pk2 int, b int, unique(pk1,pk2));
|
||||
insert into t3 select a as pk1, a as pk2, a as b from t1 where a in (1,3);
|
||||
explain select t1.a from t1 left join t2 on t2.pk=t1.a and t2.b<t1.b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
explain select t1.a from t1 left join t2 on t2.pk=t1.a or t2.b<t1.b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2
|
||||
explain select t1.a from t1 left join t2 on t2.b<t1.b or t2.pk=t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2
|
||||
explain select t1.a from t1 left join t2 on t2.pk between 10 and 20;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 index PRIMARY PRIMARY 4 NULL 2 Using index
|
||||
explain select t1.a from t1 left join t2 on t2.pk between 0.5 and 1.5;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 index PRIMARY PRIMARY 4 NULL 2 Using index
|
||||
explain select t1.a from t1 left join t2 on t2.pk between 10 and 10;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
explain select t1.a from t1 left join t2 on t2.pk in (10);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
explain select t1.a from t1 left join t2 on t2.pk in (t1.a);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
explain select t1.a from t1 left join t2 on TRUE;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 index NULL PRIMARY 4 NULL 2 Using index
|
||||
explain select t1.a from t1 left join t3 on t3.pk1=t1.a and t3.pk2 IS NULL;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
drop table t1,t2,t3;
|
||||
#
|
||||
# Multi-equality tests
|
||||
#
|
||||
create table t1 (a int, b int, c int, d int);
|
||||
insert into t1 values (0,0,0,0),(1,1,1,1),(2,2,2,2),(3,3,3,3);
|
||||
create table t2 (pk int primary key, b int, c int);
|
||||
insert into t2 select a,a,a from t1 where a in (1,2);
|
||||
explain
|
||||
select t1.*
|
||||
from t1 left join t2 on t2.pk=t2.c and t2.b=t1.a and t1.a=t1.b and t2.c=t2.b
|
||||
where t1.d=1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where
|
||||
explain
|
||||
select t1.*
|
||||
from
|
||||
t1
|
||||
left join
|
||||
t2
|
||||
on (t2.pk=t2.c and t2.b=t1.a and t1.a=t1.b and t2.c=t2.b) or
|
||||
(t2.pk=t2.c and t2.b=t1.a and t1.a=t1.b and t2.c=t2.b)
|
||||
where t1.d=1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where
|
||||
#This can't be eliminated:
|
||||
explain
|
||||
select t1.*
|
||||
from
|
||||
t1
|
||||
left join
|
||||
t2
|
||||
on (t2.pk=t2.c and t2.b=t1.a and t2.c=t1.b) or
|
||||
(t2.pk=t2.c and t1.a=t1.b and t2.c=t1.b)
|
||||
where t1.d=1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where
|
||||
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.b 1
|
||||
explain
|
||||
select t1.*
|
||||
from
|
||||
t1
|
||||
left join
|
||||
t2
|
||||
on (t2.pk=t2.c and t2.b=t1.a and t2.c=t1.b) or
|
||||
(t2.pk=t2.c and t2.c=t1.b)
|
||||
;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
explain
|
||||
select t1.*
|
||||
from t1 left join t2 on t2.pk=3 or t2.pk= 4;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 index PRIMARY PRIMARY 4 NULL 2 Using index
|
||||
explain
|
||||
select t1.*
|
||||
from t1 left join t2 on t2.pk=3 or t2.pk= 3;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
explain
|
||||
select t1.*
|
||||
from t1 left join t2 on (t2.pk=3 and t2.b=3) or (t2.pk= 4 and t2.b=3);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 range PRIMARY PRIMARY 4 NULL 2 Using where
|
||||
drop table t1, t2;
|
||||
|
|
@ -522,7 +522,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
2 UNION t2 const PRIMARY PRIMARY 4 const 1 100.00
|
||||
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
|
||||
Warnings:
|
||||
Note 1003 (select '1' AS `a`,'1' AS `b` from `test`.`t1` where ('1' = 1)) union (select '1' AS `a`,'10' AS `b` from `test`.`t2` where ('1' = 1))
|
||||
Note 1003 (select '1' AS `a`,'1' AS `b` from `test`.`t1` where 1) union (select '1' AS `a`,'10' AS `b` from `test`.`t2` where 1)
|
||||
(select * from t1 where a=5) union (select * from t2 where a=1);
|
||||
a b
|
||||
1 10
|
||||
|
|
|
|||
|
|
@ -865,7 +865,7 @@ select @@query_prealloc_size = @test;
|
|||
@@query_prealloc_size = @test
|
||||
1
|
||||
set global sql_mode=repeat('a',80);
|
||||
ERROR 42000: Variable 'sql_mode' can't be set to the value of 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
|
||||
ERROR 42000: Variable 'sql_mode' can't be set to the value of 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
|
||||
End of 4.1 tests
|
||||
create table t1 (a int);
|
||||
select a into @x from t1;
|
||||
|
|
|
|||
|
|
@ -126,23 +126,23 @@ key (n4, n1, n2, n3) );
|
|||
alter table t1 disable keys;
|
||||
show keys from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 n1 1 n1 NULL 0 NULL NULL BTREE
|
||||
t1 1 n1_2 1 n1 NULL NULL NULL NULL BTREE
|
||||
t1 1 n1_2 2 n2 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n1_2 3 n3 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n1_2 4 n4 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n2 1 n2 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n2 2 n3 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n2 3 n4 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n2 4 n1 NULL NULL NULL NULL BTREE
|
||||
t1 1 n3 1 n3 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n3 2 n4 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n3 3 n1 NULL NULL NULL NULL BTREE
|
||||
t1 1 n3 4 n2 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n4 1 n4 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n4 2 n1 NULL NULL NULL NULL BTREE
|
||||
t1 1 n4 3 n2 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n4 4 n3 NULL NULL NULL NULL YES BTREE
|
||||
t1 0 n1 1 n1 A 0 NULL NULL BTREE
|
||||
t1 1 n1_2 1 n1 A 0 NULL NULL BTREE
|
||||
t1 1 n1_2 2 n2 A 0 NULL NULL YES BTREE
|
||||
t1 1 n1_2 3 n3 A 0 NULL NULL YES BTREE
|
||||
t1 1 n1_2 4 n4 A 0 NULL NULL YES BTREE
|
||||
t1 1 n2 1 n2 A 0 NULL NULL YES BTREE
|
||||
t1 1 n2 2 n3 A 0 NULL NULL YES BTREE
|
||||
t1 1 n2 3 n4 A 0 NULL NULL YES BTREE
|
||||
t1 1 n2 4 n1 A 0 NULL NULL BTREE
|
||||
t1 1 n3 1 n3 A 0 NULL NULL YES BTREE
|
||||
t1 1 n3 2 n4 A 0 NULL NULL YES BTREE
|
||||
t1 1 n3 3 n1 A 0 NULL NULL BTREE
|
||||
t1 1 n3 4 n2 A 0 NULL NULL YES BTREE
|
||||
t1 1 n4 1 n4 A 0 NULL NULL YES BTREE
|
||||
t1 1 n4 2 n1 A 0 NULL NULL BTREE
|
||||
t1 1 n4 3 n2 A 0 NULL NULL YES BTREE
|
||||
t1 1 n4 4 n3 A 0 NULL NULL YES BTREE
|
||||
insert into t1 values(10,RAND()*1000,RAND()*1000,RAND());
|
||||
insert into t1 values(9,RAND()*1000,RAND()*1000,RAND());
|
||||
insert into t1 values(8,RAND()*1000,RAND()*1000,RAND());
|
||||
|
|
@ -156,23 +156,23 @@ insert into t1 values(1,RAND()*1000,RAND()*1000,RAND());
|
|||
alter table t1 enable keys;
|
||||
show keys from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 n1 1 n1 NULL 10 NULL NULL BTREE
|
||||
t1 1 n1_2 1 n1 NULL NULL NULL NULL BTREE
|
||||
t1 1 n1_2 2 n2 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n1_2 3 n3 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n1_2 4 n4 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n2 1 n2 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n2 2 n3 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n2 3 n4 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n2 4 n1 NULL NULL NULL NULL BTREE
|
||||
t1 1 n3 1 n3 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n3 2 n4 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n3 3 n1 NULL NULL NULL NULL BTREE
|
||||
t1 1 n3 4 n2 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n4 1 n4 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n4 2 n1 NULL NULL NULL NULL BTREE
|
||||
t1 1 n4 3 n2 NULL NULL NULL NULL YES BTREE
|
||||
t1 1 n4 4 n3 NULL NULL NULL NULL YES BTREE
|
||||
t1 0 n1 1 n1 A 10 NULL NULL BTREE
|
||||
t1 1 n1_2 1 n1 A 10 NULL NULL BTREE
|
||||
t1 1 n1_2 2 n2 A 10 NULL NULL YES BTREE
|
||||
t1 1 n1_2 3 n3 A 10 NULL NULL YES BTREE
|
||||
t1 1 n1_2 4 n4 A 10 NULL NULL YES BTREE
|
||||
t1 1 n2 1 n2 A 10 NULL NULL YES BTREE
|
||||
t1 1 n2 2 n3 A 10 NULL NULL YES BTREE
|
||||
t1 1 n2 3 n4 A 10 NULL NULL YES BTREE
|
||||
t1 1 n2 4 n1 A 10 NULL NULL BTREE
|
||||
t1 1 n3 1 n3 A 10 NULL NULL YES BTREE
|
||||
t1 1 n3 2 n4 A 10 NULL NULL YES BTREE
|
||||
t1 1 n3 3 n1 A 10 NULL NULL BTREE
|
||||
t1 1 n3 4 n2 A 10 NULL NULL YES BTREE
|
||||
t1 1 n4 1 n4 A 10 NULL NULL YES BTREE
|
||||
t1 1 n4 2 n1 A 10 NULL NULL BTREE
|
||||
t1 1 n4 3 n2 A 10 NULL NULL YES BTREE
|
||||
t1 1 n4 4 n3 A 10 NULL NULL YES BTREE
|
||||
drop table t1;
|
||||
create table t1 (i int unsigned not null auto_increment primary key);
|
||||
alter table t1 rename t2;
|
||||
|
|
@ -286,17 +286,17 @@ insert into t1 values(1,1), (2,1), (3, 1);
|
|||
alter table t1 add unique (a,b), add key (b);
|
||||
show keys from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a A NULL NULL NULL YES BTREE
|
||||
t1 0 a 2 b A NULL NULL NULL YES BTREE
|
||||
t1 1 b 1 b A NULL NULL NULL YES BTREE
|
||||
t1 0 a 1 a A 300 NULL NULL YES BTREE
|
||||
t1 0 a 2 b A 300 NULL NULL YES BTREE
|
||||
t1 1 b 1 b A 300 NULL NULL YES BTREE
|
||||
analyze table t1;
|
||||
Table Op Msg_type Msg_text
|
||||
test.t1 analyze status OK
|
||||
show keys from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a A NULL NULL NULL YES BTREE
|
||||
t1 0 a 2 b A NULL NULL NULL YES BTREE
|
||||
t1 1 b 1 b A NULL NULL NULL YES BTREE
|
||||
t1 0 a 1 a A 300 NULL NULL YES BTREE
|
||||
t1 0 a 2 b A 300 NULL NULL YES BTREE
|
||||
t1 1 b 1 b A 300 NULL NULL YES BTREE
|
||||
drop table t1;
|
||||
CREATE TABLE t1 (i int(10), index(i) );
|
||||
ALTER TABLE t1 DISABLE KEYS;
|
||||
|
|
@ -545,37 +545,37 @@ drop table if exists t1;
|
|||
create table t1 (a int, key(a));
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a A NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
"this used not to disable the index"
|
||||
alter table t1 modify a int, disable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a A NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
alter table t1 enable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a NULL NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
alter table t1 modify a bigint, disable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a A NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
alter table t1 enable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a NULL NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
alter table t1 add b char(10), disable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a A NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
alter table t1 add c decimal(10,2), enable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a A NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
"this however did"
|
||||
alter table t1 disable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a NULL NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
desc t1;
|
||||
Field Type Null Key Default Extra
|
||||
a bigint(20) YES MUL NULL
|
||||
|
|
@ -585,7 +585,7 @@ alter table t1 add d decimal(15,5);
|
|||
"The key should still be disabled"
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a A NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
drop table t1;
|
||||
"Now will test with one unique index"
|
||||
create table t1(a int, b char(10), unique(a));
|
||||
|
|
@ -595,7 +595,7 @@ t1 0 a 1 a A 0 NULL NULL YES BTREE
|
|||
alter table t1 disable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a NULL 0 NULL NULL YES BTREE
|
||||
t1 0 a 1 a A 0 NULL NULL YES BTREE
|
||||
alter table t1 enable keys;
|
||||
"If no copy on noop change, this won't touch the data file"
|
||||
"Unique index, no change"
|
||||
|
|
@ -623,12 +623,12 @@ create table t1(a int, b char(10), unique(a), key(b));
|
|||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a A 0 NULL NULL YES BTREE
|
||||
t1 1 b 1 b A NULL NULL NULL YES BTREE
|
||||
t1 1 b 1 b A 0 NULL NULL YES BTREE
|
||||
alter table t1 disable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a NULL 0 NULL NULL YES BTREE
|
||||
t1 1 b 1 b NULL NULL NULL NULL YES BTREE
|
||||
t1 0 a 1 a A 0 NULL NULL YES BTREE
|
||||
t1 1 b 1 b A 0 NULL NULL YES BTREE
|
||||
alter table t1 enable keys;
|
||||
"If no copy on noop change, this won't touch the data file"
|
||||
"The non-unique index will be disabled"
|
||||
|
|
@ -636,31 +636,31 @@ alter table t1 modify a int, disable keys;
|
|||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a A 0 NULL NULL YES BTREE
|
||||
t1 1 b 1 b A NULL NULL NULL YES BTREE
|
||||
t1 1 b 1 b A 0 NULL NULL YES BTREE
|
||||
alter table t1 enable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a NULL 0 NULL NULL YES BTREE
|
||||
t1 1 b 1 b NULL NULL NULL NULL YES BTREE
|
||||
t1 0 a 1 a A 0 NULL NULL YES BTREE
|
||||
t1 1 b 1 b A 0 NULL NULL YES BTREE
|
||||
"Change the type implying data copy"
|
||||
"The non-unique index will be disabled"
|
||||
alter table t1 modify a bigint, disable keys;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a A 0 NULL NULL YES BTREE
|
||||
t1 1 b 1 b A NULL NULL NULL YES BTREE
|
||||
t1 1 b 1 b A 0 NULL NULL YES BTREE
|
||||
"Change again the type, but leave the indexes as_is"
|
||||
alter table t1 modify a int;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a A 0 NULL NULL YES BTREE
|
||||
t1 1 b 1 b A NULL NULL NULL YES BTREE
|
||||
t1 1 b 1 b A 0 NULL NULL YES BTREE
|
||||
"Try the same. When data is no copied on similar tables, this is noop"
|
||||
alter table t1 modify a int;
|
||||
show indexes from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 a 1 a A 0 NULL NULL YES BTREE
|
||||
t1 1 b 1 b A NULL NULL NULL YES BTREE
|
||||
t1 1 b 1 b A 0 NULL NULL YES BTREE
|
||||
drop table t1;
|
||||
create database mysqltest;
|
||||
create table t1 (c1 int);
|
||||
|
|
@ -697,11 +697,11 @@ DROP TABLE IF EXISTS bug24219_2;
|
|||
CREATE TABLE bug24219 (a INT, INDEX(a));
|
||||
SHOW INDEX FROM bug24219;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
bug24219 1 a 1 a A NULL NULL NULL YES BTREE
|
||||
bug24219 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
ALTER TABLE bug24219 RENAME TO bug24219_2, DISABLE KEYS;
|
||||
SHOW INDEX FROM bug24219_2;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
bug24219_2 1 a 1 a A NULL NULL NULL YES BTREE
|
||||
bug24219_2 1 a 1 a A 0 NULL NULL YES BTREE
|
||||
DROP TABLE bug24219_2;
|
||||
create table t1 (mycol int(10) not null);
|
||||
alter table t1 alter column mycol set default 0;
|
||||
|
|
@ -882,7 +882,7 @@ int_field int(10) unsigned NO MUL NULL
|
|||
char_field char(10) YES NULL
|
||||
SHOW INDEXES FROM t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 int_field 1 int_field A NULL NULL NULL BTREE
|
||||
t1 1 int_field 1 int_field A 0 NULL NULL BTREE
|
||||
INSERT INTO t1 VALUES (1, "edno"), (1, "edno"), (2, "dve"), (3, "tri"), (5, "pet");
|
||||
"Non-copy data change - new frm, but old data and index files"
|
||||
ALTER TABLE t1
|
||||
|
|
|
|||
|
|
@ -56,5 +56,5 @@ Table Op Msg_type Msg_text
|
|||
test.t1 analyze status OK
|
||||
show index from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 1 a 1 a A NULL NULL NULL YES BTREE
|
||||
t1 1 a 1 a A 5 NULL NULL YES BTREE
|
||||
drop table t1;
|
||||
|
|
|
|||
|
|
@ -229,7 +229,8 @@ a b
|
|||
204 7
|
||||
delete from t1 where a=0;
|
||||
update t1 set a=NULL where b=6;
|
||||
ERROR 23000: Column 'a' cannot be null
|
||||
Warnings:
|
||||
Warning 1048 Column 'a' cannot be null
|
||||
update t1 set a=300 where b=7;
|
||||
SET SQL_MODE='';
|
||||
insert into t1(a,b)values(NULL,8);
|
||||
|
|
@ -244,7 +245,7 @@ a b
|
|||
1 1
|
||||
200 2
|
||||
201 4
|
||||
203 6
|
||||
0 6
|
||||
300 7
|
||||
301 8
|
||||
400 9
|
||||
|
|
@ -260,7 +261,6 @@ a b
|
|||
1 1
|
||||
200 2
|
||||
201 4
|
||||
203 6
|
||||
300 7
|
||||
301 8
|
||||
400 9
|
||||
|
|
@ -271,20 +271,20 @@ a b
|
|||
405 14
|
||||
delete from t1 where a=0;
|
||||
update t1 set a=NULL where b=13;
|
||||
ERROR 23000: Column 'a' cannot be null
|
||||
Warnings:
|
||||
Warning 1048 Column 'a' cannot be null
|
||||
update t1 set a=500 where b=14;
|
||||
select * from t1 order by b;
|
||||
a b
|
||||
1 1
|
||||
200 2
|
||||
201 4
|
||||
203 6
|
||||
300 7
|
||||
301 8
|
||||
400 9
|
||||
401 10
|
||||
402 11
|
||||
404 13
|
||||
0 13
|
||||
500 14
|
||||
drop table t1;
|
||||
create table t1 (a bigint);
|
||||
|
|
|
|||
|
|
@ -125,18 +125,19 @@ a b
|
|||
0 11
|
||||
2 12
|
||||
delete ignore t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
|
||||
Warnings:
|
||||
Error 1242 Subquery returns more than 1 row
|
||||
Error 1242 Subquery returns more than 1 row
|
||||
ERROR 21000: Subquery returns more than 1 row
|
||||
select * from t11;
|
||||
a b
|
||||
0 10
|
||||
1 11
|
||||
2 12
|
||||
select * from t12;
|
||||
a b
|
||||
33 10
|
||||
0 11
|
||||
2 12
|
||||
insert into t11 values (2, 12);
|
||||
ERROR 23000: Duplicate entry '2' for key 'PRIMARY'
|
||||
delete from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
|
||||
ERROR 21000: Subquery returns more than 1 row
|
||||
select * from t11;
|
||||
|
|
@ -145,13 +146,12 @@ a b
|
|||
1 11
|
||||
2 12
|
||||
delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
|
||||
Warnings:
|
||||
Error 1242 Subquery returns more than 1 row
|
||||
Error 1242 Subquery returns more than 1 row
|
||||
ERROR 21000: Subquery returns more than 1 row
|
||||
select * from t11;
|
||||
a b
|
||||
0 10
|
||||
1 11
|
||||
2 12
|
||||
drop table t11, t12, t2;
|
||||
create table t1 (a int, b int, unique key (a), key (b));
|
||||
insert into t1 values (3, 3), (7, 7);
|
||||
|
|
|
|||
|
|
@ -174,8 +174,8 @@ INSERT INTO t3 VALUES (1,'1'),(2,'2'),(1,'1'),(2,'2');
|
|||
explain SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 4 Using temporary
|
||||
1 SIMPLE t3 ref a a 5 test.t1.b 2 Using where; Using index
|
||||
1 SIMPLE t2 index a a 4 NULL 5 Using where; Using index; Distinct; Using join buffer
|
||||
1 SIMPLE t2 ref a a 4 test.t1.a 1 Using index
|
||||
1 SIMPLE t3 ref a a 5 test.t1.b 1 Using where; Using index
|
||||
SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
|
||||
a
|
||||
1
|
||||
|
|
@ -190,7 +190,7 @@ insert into t3 select * from t4;
|
|||
explain select distinct t1.a from t1,t3 where t1.a=t3.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index PRIMARY PRIMARY 4 NULL 4 Using index; Using temporary
|
||||
1 SIMPLE t3 ref a a 5 test.t1.a 11 Using where; Using index; Distinct
|
||||
1 SIMPLE t3 ref a a 5 test.t1.a 1 Using where; Using index; Distinct
|
||||
select distinct t1.a from t1,t3 where t1.a=t3.a;
|
||||
a
|
||||
1
|
||||
|
|
@ -212,7 +212,7 @@ id select_type table type possible_keys key key_len ref rows Extra
|
|||
1 SIMPLE t1 index NULL PRIMARY 4 NULL 1 Using index
|
||||
explain SELECT distinct a from t3 order by a desc limit 2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t3 index NULL a 5 NULL 40 Using index
|
||||
1 SIMPLE t3 index NULL a 5 NULL 2 Using index
|
||||
explain SELECT distinct a,b from t3 order by a+1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t3 ALL NULL NULL NULL NULL 204 Using temporary; Using filesort
|
||||
|
|
|
|||
|
|
@ -61,7 +61,7 @@ grp sum
|
|||
NULL NULL
|
||||
1 7
|
||||
2 20.25
|
||||
3 45.483163247594
|
||||
3 45.4831632475944
|
||||
create table t2 (grp int, a bigint unsigned, c char(10));
|
||||
insert into t2 select grp,max(a)+max(grp),max(c) from t1 group by grp;
|
||||
replace into t2 select grp, a, c from t1 limit 2,1;
|
||||
|
|
@ -613,8 +613,8 @@ id select_type table type possible_keys key key_len ref rows Extra
|
|||
explain
|
||||
select max(t1.a3), min(t2.a2) from t1, t2 where t1.a2 = 2 and t1.a3 < 'MIN' and t2.a3 > 'CA';
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range k1 k1 3 NULL 1 Using where; Using index
|
||||
1 SIMPLE t1 range k1 k1 7 NULL 1 Using where; Using index; Using join buffer
|
||||
1 SIMPLE t1 range k1 k1 7 NULL 1 Using where; Using index
|
||||
1 SIMPLE t2 range k1 k1 3 NULL 1 Using where; Using index; Using join buffer
|
||||
explain
|
||||
select min(a4 - 0.01) from t1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
|
|
@ -1186,7 +1186,7 @@ std(s1/s2)
|
|||
0.21325764
|
||||
select std(o1/o2) from bug22555;
|
||||
std(o1/o2)
|
||||
0.21325763586649
|
||||
0.213257635866493
|
||||
select std(e1/e2) from bug22555;
|
||||
std(e1/e2)
|
||||
0.21325764
|
||||
|
|
@ -1212,7 +1212,7 @@ round(std(s1/s2), 17)
|
|||
0.21325763586649341
|
||||
select std(o1/o2) from bug22555;
|
||||
std(o1/o2)
|
||||
0.21325763586649
|
||||
0.213257635866493
|
||||
select round(std(e1/e2), 17) from bug22555;
|
||||
round(std(e1/e2), 17)
|
||||
0.21325763586649341
|
||||
|
|
@ -1237,7 +1237,7 @@ round(std(s1/s2), 17)
|
|||
0.21325763586649341
|
||||
select std(o1/o2) from bug22555;
|
||||
std(o1/o2)
|
||||
0.21325763586649
|
||||
0.213257635866493
|
||||
select round(std(e1/e2), 17) from bug22555;
|
||||
round(std(e1/e2), 17)
|
||||
0.21325763586649341
|
||||
|
|
|
|||
|
|
@ -60,7 +60,7 @@ Warnings:
|
|||
Note 1003 select ln(exp(10)) AS `ln(exp(10))`,exp((ln(sqrt(10)) * 2)) AS `exp(ln(sqrt(10))*2)`,ln(-(1)) AS `ln(-1)`,ln(0) AS `ln(0)`,ln(NULL) AS `ln(NULL)`
|
||||
select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
|
||||
log2(8) log2(15) log2(-2) log2(0) log2(NULL)
|
||||
3 3.9068905956085 NULL NULL NULL
|
||||
3 3.90689059560852 NULL NULL NULL
|
||||
explain extended select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
||||
|
|
@ -68,7 +68,7 @@ Warnings:
|
|||
Note 1003 select log2(8) AS `log2(8)`,log2(15) AS `log2(15)`,log2(-(2)) AS `log2(-2)`,log2(0) AS `log2(0)`,log2(NULL) AS `log2(NULL)`
|
||||
select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
|
||||
log10(100) log10(18) log10(-4) log10(0) log10(NULL)
|
||||
2 1.2552725051033 NULL NULL NULL
|
||||
2 1.25527250510331 NULL NULL NULL
|
||||
explain extended select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
||||
|
|
@ -85,7 +85,7 @@ Note 1003 select pow(10,log10(10)) AS `pow(10,log10(10))`,pow(2,4) AS `power(2,4
|
|||
set @@rand_seed1=10000000,@@rand_seed2=1000000;
|
||||
select rand(999999),rand();
|
||||
rand(999999) rand()
|
||||
0.014231365187309 0.028870999839968
|
||||
0.0142313651873091 0.028870999839968
|
||||
explain extended select rand(999999),rand();
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
||||
|
|
@ -101,7 +101,7 @@ Warnings:
|
|||
Note 1003 select pi() AS `pi()`,format(sin((pi() / 2)),6) AS `format(sin(pi()/2),6)`,format(cos((pi() / 2)),6) AS `format(cos(pi()/2),6)`,format(abs(tan(pi())),6) AS `format(abs(tan(pi())),6)`,format((1 / tan(1)),6) AS `format(cot(1),6)`,format(asin(1),6) AS `format(asin(1),6)`,format(acos(0),6) AS `format(acos(0),6)`,format(atan(1),6) AS `format(atan(1),6)`
|
||||
select degrees(pi()),radians(360);
|
||||
degrees(pi()) radians(360)
|
||||
180 6.2831853071796
|
||||
180 6.28318530717959
|
||||
select format(atan(-2, 2), 6);
|
||||
format(atan(-2, 2), 6)
|
||||
-0.785398
|
||||
|
|
|
|||
|
|
@ -1327,10 +1327,10 @@ cast(rtrim(ltrim(' 20.06 ')) as decimal(19,2))
|
|||
20.06
|
||||
select conv("18383815659218730760",10,10) + 0;
|
||||
conv("18383815659218730760",10,10) + 0
|
||||
1.8383815659219e+19
|
||||
1.83838156592187e+19
|
||||
select "18383815659218730760" + 0;
|
||||
"18383815659218730760" + 0
|
||||
1.8383815659219e+19
|
||||
1.83838156592187e+19
|
||||
CREATE TABLE t1 (code varchar(10));
|
||||
INSERT INTO t1 VALUES ('a12'), ('A12'), ('a13');
|
||||
SELECT ASCII(code), code FROM t1 WHERE code='A12';
|
||||
|
|
|
|||
|
|
@ -457,7 +457,7 @@ Privilege Context Comment
|
|||
Alter Tables To alter the table
|
||||
Alter routine Functions,Procedures To alter or drop stored functions/procedures
|
||||
Create Databases,Tables,Indexes To create new databases and tables
|
||||
Create routine Functions,Procedures To use CREATE FUNCTION/PROCEDURE
|
||||
Create routine Databases To use CREATE FUNCTION/PROCEDURE
|
||||
Create temporary tables Databases To use CREATE TEMPORARY TABLE
|
||||
Create view Tables To create new views
|
||||
Create user Server Admin To create new users
|
||||
|
|
|
|||
|
|
@ -133,34 +133,34 @@ Table Op Msg_type Msg_text
|
|||
test.t3 analyze status OK
|
||||
explain select a1, min(a2) from t1 group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 129 Using index for group-by
|
||||
explain select a1, max(a2) from t1 group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 65 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 65 NULL 129 Using index for group-by
|
||||
explain select a1, min(a2), max(a2) from t1 group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 129 Using index for group-by
|
||||
explain select a1, a2, b, min(c), max(c) from t1 group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using index for group-by
|
||||
explain select a1,a2,b,max(c),min(c) from t1 group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using index for group-by
|
||||
explain select a1,a2,b,max(c),min(c) from t2 group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 # NULL # Using index for group-by
|
||||
explain select min(a2), a1, max(a2), min(a2), a1 from t1 group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 129 Using index for group-by
|
||||
explain select a1, b, min(c), a1, max(c), b, a2, max(c), max(c) from t1 group by a1, a2, b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using index for group-by
|
||||
explain select min(a2) from t1 group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 129 Using index for group-by
|
||||
explain select a2, min(c), max(c) from t1 group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using index for group-by
|
||||
select a1, min(a2) from t1 group by a1;
|
||||
a1 min(a2)
|
||||
a a
|
||||
|
|
@ -293,13 +293,13 @@ id select_type table type possible_keys key key_len ref rows Extra
|
|||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_2 65 NULL 1 Using where
|
||||
explain select a1,a2,b, max(c) from t1 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 1 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 2 Using where; Using index for group-by
|
||||
explain select a1, max(c) from t1 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 1 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 2 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where a1 >= 'c' or a2 < 'b' group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b, max(c) from t1 where a1 = 'z' or a1 = 'b' or a1 = 'd' group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 65 NULL 3 Using where; Using index
|
||||
|
|
@ -669,40 +669,40 @@ d l421
|
|||
d p422
|
||||
explain select a1,a2,b,max(c),min(c) from t1 where (a2 = 'a') and (b = 'b') group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,max(c),min(c) from t1 where (a2 = 'a') and (b = 'b') group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b, max(c) from t1 where (b = 'b') group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (b = 'b') group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2, max(c) from t1 where (b = 'b') group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,max(c),min(c) from t2 where (a2 = 'a') and (b = 'b') group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,max(c),min(c) from t2 where (a2 = 'a') and (b = 'b') group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,a2,b, max(c) from t2 where (b = 'b') group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 146 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 146 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t2 where (b = 'b') group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,a2, max(c) from t2 where (b = 'b') group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 146 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 146 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,a2,b,max(c),min(c) from t3 where (a2 = 'a') and (b = 'b') group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t3 range NULL idx_t3_1 6 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t3 range NULL idx_t3_1 6 NULL 193 Using where; Using index for group-by
|
||||
explain select a1,max(c),min(c) from t3 where (a2 = 'a') and (b = 'b') group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t3 range NULL idx_t3_1 6 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t3 range NULL idx_t3_1 6 NULL 193 Using where; Using index for group-by
|
||||
select a1,a2,b,max(c),min(c) from t1 where (a2 = 'a') and (b = 'b') group by a1;
|
||||
a1 a2 b max(c) min(c)
|
||||
a a b h112 e112
|
||||
|
|
@ -804,22 +804,22 @@ b h212 e212
|
|||
c h312 e312
|
||||
explain select a1,a2,b,min(c) from t2 where (a2 = 'a') and b is NULL group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,a2,b,max(c) from t2 where (a2 = 'a') and b is NULL group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 146 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 146 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c) from t2 where b is NULL group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,a2,b,max(c) from t2 where b is NULL group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 146 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 146 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t2 where b is NULL group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 165 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t2 where b is NULL group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 165 Using where; Using index for group-by
|
||||
select a1,a2,b,min(c) from t2 where (a2 = 'a') and b is NULL group by a1;
|
||||
a1 a2 b min(c)
|
||||
a a NULL a777
|
||||
|
|
@ -849,49 +849,49 @@ id select_type table type possible_keys key key_len ref rows Extra
|
|||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL # Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (c > 'b1') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b, max(c) from t1 where (c > 'f123') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (c > 'f123') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b, max(c) from t1 where (c < 'a0') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (c < 'a0') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b, max(c) from t1 where (c < 'k321') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (c < 'k321') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b, max(c) from t1 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b, max(c) from t1 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (c > 'b111') and (c <= 'g112') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (c < 'c5') or (c = 'g412') or (c = 'k421') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where ((c > 'b111') and (c <= 'g112')) or ((c > 'd000') and (c <= 'i110')) group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (c between 'b111' and 'g112') or (c between 'd000' and 'i110') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b, max(c) from t2 where (c > 'b1') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 146 NULL # Using where; Using index for group-by
|
||||
|
|
@ -1364,29 +1364,29 @@ explain select a1,a2,b,min(c),max(c) from t1
|
|||
where exists ( select * from t2 where t2.c > 'b1' )
|
||||
group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1 range NULL idx_t1_1 147 NULL 10 Using index for group-by
|
||||
1 PRIMARY t1 range NULL idx_t1_1 147 NULL 129 Using index for group-by
|
||||
2 SUBQUERY t2 index NULL idx_t2_1 163 NULL 164 Using where; Using index
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (a1 >= 'c' or a2 < 'b') and (c > 'b111') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t1 where (a2 >= 'b') and (b = 'a') and (c > 'b111') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c) from t1 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c < 'h112') or (c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122')) group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 163 NULL 1 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 163 NULL 2 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c) from t1 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122') or (c < 'h112') or (c = 'c111')) group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 163 NULL 1 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 163 NULL 2 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c) from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_2 65 NULL 1 Using where
|
||||
explain select a1,a2,b,min(c) from t1 where (ord(a1) > 97) and (ord(a2) + ord(a1) > 194) and (b = 'c') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,min(c),max(c) from t2 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range idx_t2_0,idx_t2_1,idx_t2_2 idx_t2_1 163 NULL # Using where; Using index for group-by
|
||||
|
|
@ -1491,13 +1491,13 @@ select a1,a2,b,min(c) from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') grou
|
|||
a1 a2 b min(c)
|
||||
explain select a1,a2,b from t1 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b from t1 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_2 147 NULL 1 Using where
|
||||
|
|
@ -1554,13 +1554,13 @@ select a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1
|
|||
a1 a2 b
|
||||
explain select distinct a1,a2,b from t1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using index for group-by
|
||||
explain select distinct a1,a2,b from t1 where (a2 >= 'b') and (b = 'a');
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain extended select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 100.00 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 99.22 Using where; Using index for group-by
|
||||
Warnings:
|
||||
Note 1003 select distinct `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where ((`test`.`t1`.`c` = 'i121') and (`test`.`t1`.`b` = 'a') and (`test`.`t1`.`a2` >= 'b'))
|
||||
explain select distinct a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
|
||||
|
|
@ -1577,7 +1577,7 @@ id select_type table type possible_keys key key_len ref rows Extra
|
|||
1 SIMPLE t2 range NULL idx_t2_2 146 NULL # Using where; Using index for group-by
|
||||
explain extended select distinct a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 10 100.00 Using where; Using index for group-by
|
||||
1 SIMPLE t2 range NULL idx_t2_1 163 NULL 165 99.39 Using where; Using index for group-by
|
||||
Warnings:
|
||||
Note 1003 select distinct `test`.`t2`.`a1` AS `a1`,`test`.`t2`.`a2` AS `a2`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where ((`test`.`t2`.`c` = 'i121') and (`test`.`t2`.`b` = 'a') and (`test`.`t2`.`a2` >= 'b'))
|
||||
explain select distinct a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
|
||||
|
|
@ -1702,19 +1702,19 @@ c e
|
|||
d e
|
||||
explain select distinct a1,a2,b from t1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using index for group-by
|
||||
explain select distinct a1,a2,b from t1 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by
|
||||
explain select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 163 NULL 129 Using where; Using index for group-by
|
||||
explain select distinct a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_2 147 NULL 1 Using where
|
||||
explain select distinct b from t1 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using where; Using index for group-by; Using temporary; Using filesort
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using where; Using index for group-by; Using temporary; Using filesort
|
||||
explain select distinct a1,a2,b from t2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range NULL idx_t2_2 146 NULL # Using index for group-by
|
||||
|
|
@ -1846,7 +1846,7 @@ id select_type table type possible_keys key key_len ref rows Extra
|
|||
1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_2 65 NULL 1 Using where
|
||||
explain select concat(ord(min(b)),ord(max(b))),min(b),max(b) from t1 group by a1,a2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 10 Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 147 NULL 129 Using index for group-by
|
||||
select a1,a2,b, concat(min(c), max(c)) from t1 where a1 < 'd' group by a1,a2,b;
|
||||
a1 a2 b concat(min(c), max(c))
|
||||
a a a a111d111
|
||||
|
|
@ -1985,7 +1985,7 @@ c
|
|||
d
|
||||
explain select a1 from t1 where a2 = 'b' group by a1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 129 Using where; Using index for group-by
|
||||
select a1 from t1 where a2 = 'b' group by a1;
|
||||
a1
|
||||
a
|
||||
|
|
@ -1994,7 +1994,7 @@ c
|
|||
d
|
||||
explain select distinct a1 from t1 where a2 = 'b';
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 10 Using where; Using index for group-by
|
||||
1 SIMPLE t1 range NULL idx_t1_1 130 NULL 129 Using where; Using index for group-by
|
||||
select distinct a1 from t1 where a2 = 'b';
|
||||
a1
|
||||
a
|
||||
|
|
@ -2188,7 +2188,7 @@ INSERT INTO t1 (a, b) VALUES (1,1), (1,2), (1,3), (1,4), (1,5),
|
|||
(2,2), (2,3), (2,1), (3,1), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6);
|
||||
EXPLAIN SELECT max(b), a FROM t1 GROUP BY a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL a 5 NULL 8 Using index for group-by
|
||||
1 SIMPLE t1 index NULL a 10 NULL 15 Using index
|
||||
FLUSH STATUS;
|
||||
SELECT max(b), a FROM t1 GROUP BY a;
|
||||
max(b) a
|
||||
|
|
@ -2202,7 +2202,7 @@ Handler_read_key 0
|
|||
Handler_read_next 0
|
||||
EXPLAIN SELECT max(b), a FROM t1 GROUP BY a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL a 5 NULL 8 Using index for group-by
|
||||
1 SIMPLE t1 index NULL a 10 NULL 15 Using index
|
||||
FLUSH STATUS;
|
||||
CREATE TABLE t2 SELECT max(b), a FROM t1 GROUP BY a;
|
||||
SHOW STATUS LIKE 'handler_read__e%';
|
||||
|
|
@ -2235,14 +2235,14 @@ Handler_read_next 0
|
|||
EXPLAIN (SELECT max(b), a FROM t1 GROUP BY a) UNION
|
||||
(SELECT max(b), a FROM t1 GROUP BY a);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1 range NULL a 5 NULL 8 Using index for group-by
|
||||
2 UNION t1 range NULL a 5 NULL 8 Using index for group-by
|
||||
1 PRIMARY t1 index NULL a 10 NULL 15 Using index
|
||||
2 UNION t1 index NULL a 10 NULL 15 Using index
|
||||
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
|
||||
EXPLAIN SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
|
||||
FROM t1 AS t1_outer;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1_outer index NULL a 10 NULL 15 Using index
|
||||
2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
|
||||
2 SUBQUERY t1 index NULL a 10 NULL 15 Using index
|
||||
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE EXISTS
|
||||
(SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
|
|
@ -2252,7 +2252,7 @@ EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
|
|||
(SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) > 12;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
|
||||
2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
|
||||
2 SUBQUERY t1 index NULL a 10 NULL 15 Using index
|
||||
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
|
||||
a IN (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
|
|
@ -2261,21 +2261,21 @@ id select_type table type possible_keys key key_len ref rows Extra
|
|||
EXPLAIN SELECT 1 FROM t1 AS t1_outer GROUP BY a HAVING
|
||||
a > (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1_outer range NULL a 5 NULL 8 Using index for group-by
|
||||
2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
|
||||
1 PRIMARY t1_outer index NULL a 10 NULL 15 Using index
|
||||
2 SUBQUERY t1 index NULL a 10 NULL 15 Using index
|
||||
EXPLAIN SELECT 1 FROM t1 AS t1_outer1 JOIN t1 AS t1_outer2
|
||||
ON t1_outer1.a = (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2)
|
||||
AND t1_outer1.b = t1_outer2.b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1_outer1 ref a a 5 const 1 Using where; Using index
|
||||
1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using where; Using index; Using join buffer
|
||||
2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
|
||||
2 SUBQUERY t1 index NULL a 10 NULL 15 Using index
|
||||
EXPLAIN SELECT (SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
|
||||
FROM t1 AS t1_outer) x2 FROM t1 AS t1_outer2;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using index
|
||||
2 SUBQUERY t1_outer index NULL a 10 NULL 15 Using index
|
||||
3 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
|
||||
3 SUBQUERY t1 index NULL a 10 NULL 15 Using index
|
||||
CREATE TABLE t3 LIKE t1;
|
||||
FLUSH STATUS;
|
||||
INSERT INTO t3 SELECT a,MAX(b) FROM t1 GROUP BY a;
|
||||
|
|
@ -2312,7 +2312,7 @@ INSERT INTO t1 VALUES
|
|||
(4), (2), (1), (2), (2), (4), (1), (4);
|
||||
EXPLAIN SELECT DISTINCT(a) FROM t1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx 5 NULL 9 Using index for group-by
|
||||
1 SIMPLE t1 index NULL idx 5 NULL 16 Using index
|
||||
SELECT DISTINCT(a) FROM t1;
|
||||
a
|
||||
1
|
||||
|
|
@ -2320,7 +2320,7 @@ a
|
|||
4
|
||||
EXPLAIN SELECT SQL_BIG_RESULT DISTINCT(a) FROM t1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL idx 5 NULL 9 Using index for group-by
|
||||
1 SIMPLE t1 index NULL idx 5 NULL 16 Using index
|
||||
SELECT SQL_BIG_RESULT DISTINCT(a) FROM t1;
|
||||
a
|
||||
1
|
||||
|
|
@ -2345,7 +2345,7 @@ CREATE INDEX break_it ON t1 (a, b);
|
|||
EXPLAIN
|
||||
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL break_it 10 NULL 7 Using index for group-by
|
||||
1 SIMPLE t1 index NULL break_it 10 NULL 12 Using index
|
||||
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a;
|
||||
a MIN(b) MAX(b)
|
||||
1 1 3
|
||||
|
|
@ -2355,7 +2355,7 @@ a MIN(b) MAX(b)
|
|||
EXPLAIN
|
||||
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a DESC;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL break_it 10 NULL 7 Using index for group-by; Using temporary; Using filesort
|
||||
1 SIMPLE t1 index NULL break_it 10 NULL 12 Using index
|
||||
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a DESC;
|
||||
a MIN(b) MAX(b)
|
||||
4 1 3
|
||||
|
|
|
|||
|
|
@ -774,7 +774,7 @@ insert into t3 select * from t2 where a < 800;
|
|||
explain select * from t2,t3 where t2.a < 200 and t2.b=t3.b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 range a,b a 5 NULL 1 Using where
|
||||
1 SIMPLE t3 ref b b 5 test.t2.b 11 Using where
|
||||
1 SIMPLE t3 ref b b 5 test.t2.b 1 Using where
|
||||
drop table t1, t2, t3;
|
||||
create table t1 (a int);
|
||||
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
||||
|
|
|
|||
|
|
@ -851,7 +851,7 @@ ON t3.a=1 AND t3.b=t2.b AND t2.b=t4.b;
|
|||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00
|
||||
1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using join buffer
|
||||
1 SIMPLE t2 ref idx_b idx_b 5 test.t3.b 2 100.00
|
||||
1 SIMPLE t2 ref idx_b idx_b 5 test.t3.b 1 100.00
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t3` join `test`.`t4` left join (`test`.`t1` join `test`.`t2`) on(((`test`.`t3`.`a` = 1) and (`test`.`t3`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` = `test`.`t4`.`b`))) where 1
|
||||
|
|
@ -958,15 +958,15 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 1 100.00
|
||||
1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where
|
||||
1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
|
||||
Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t3`.`b` = `test`.`t4`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
|
||||
CREATE INDEX idx_b ON t8(b);
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
||||
|
|
@ -1008,14 +1008,14 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where
|
||||
1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 1 100.00
|
||||
1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where
|
||||
1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 1 100.00 Using where
|
||||
1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer
|
||||
Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t3`.`b` = `test`.`t4`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
|
||||
CREATE INDEX idx_b ON t1(b);
|
||||
CREATE INDEX idx_a ON t0(a);
|
||||
EXPLAIN EXTENDED
|
||||
|
|
@ -1055,17 +1055,17 @@ t0.b=t1.b AND
|
|||
(t9.a=1);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t0 ref idx_a idx_a 5 const 1 100.00 Using where
|
||||
1 SIMPLE t1 ref idx_b idx_b 5 test.t0.b 2 100.00 Using where
|
||||
1 SIMPLE t1 ref idx_b idx_b 5 test.t0.b 1 100.00 Using where
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where
|
||||
1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 1 100.00
|
||||
1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where
|
||||
1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where
|
||||
1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 1 100.00 Using where
|
||||
1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer
|
||||
Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t3`.`b` = `test`.`t4`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
|
||||
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
||||
t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
|
||||
FROM t0,t1
|
||||
|
|
@ -1102,21 +1102,21 @@ t0.b=t1.b AND
|
|||
(t9.a=1);
|
||||
a b a b a b a b a b a b a b a b a b a b
|
||||
1 2 2 2 NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL 1 1
|
||||
1 2 3 2 4 2 1 2 3 2 3 1 6 2 1 1 NULL NULL 1 1
|
||||
1 2 3 2 4 2 1 2 3 2 3 3 NULL NULL NULL NULL NULL NULL 1 1
|
||||
1 2 3 2 4 2 1 2 4 2 3 1 6 2 1 1 NULL NULL 1 1
|
||||
1 2 3 2 4 2 1 2 4 2 3 3 NULL NULL NULL NULL NULL NULL 1 1
|
||||
1 2 3 2 5 3 NULL NULL NULL NULL 3 1 6 2 1 1 NULL NULL 1 1
|
||||
1 2 3 2 5 3 NULL NULL NULL NULL 3 3 NULL NULL NULL NULL NULL NULL 1 1
|
||||
1 2 2 2 NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL 1 2
|
||||
1 2 3 2 4 2 1 2 3 2 3 1 6 2 1 1 NULL NULL 1 2
|
||||
1 2 3 2 4 2 1 2 3 2 2 2 6 2 2 2 0 2 1 2
|
||||
1 2 3 2 4 2 1 2 3 2 3 1 6 2 1 1 NULL NULL 1 1
|
||||
1 2 3 2 4 2 1 2 3 2 3 1 6 2 1 1 NULL NULL 1 2
|
||||
1 2 3 2 4 2 1 2 3 2 3 3 NULL NULL NULL NULL NULL NULL 1 1
|
||||
1 2 3 2 4 2 1 2 3 2 3 3 NULL NULL NULL NULL NULL NULL 1 2
|
||||
1 2 3 2 4 2 1 2 4 2 3 1 6 2 1 1 NULL NULL 1 2
|
||||
1 2 3 2 4 2 1 2 4 2 2 2 6 2 2 2 0 2 1 2
|
||||
1 2 3 2 4 2 1 2 4 2 3 1 6 2 1 1 NULL NULL 1 1
|
||||
1 2 3 2 4 2 1 2 4 2 3 1 6 2 1 1 NULL NULL 1 2
|
||||
1 2 3 2 4 2 1 2 4 2 3 3 NULL NULL NULL NULL NULL NULL 1 1
|
||||
1 2 3 2 4 2 1 2 4 2 3 3 NULL NULL NULL NULL NULL NULL 1 2
|
||||
1 2 3 2 5 3 NULL NULL NULL NULL 3 1 6 2 1 1 NULL NULL 1 2
|
||||
1 2 3 2 5 3 NULL NULL NULL NULL 2 2 6 2 2 2 0 2 1 2
|
||||
1 2 3 2 5 3 NULL NULL NULL NULL 3 1 6 2 1 1 NULL NULL 1 1
|
||||
1 2 3 2 5 3 NULL NULL NULL NULL 3 1 6 2 1 1 NULL NULL 1 2
|
||||
1 2 3 2 5 3 NULL NULL NULL NULL 3 3 NULL NULL NULL NULL NULL NULL 1 1
|
||||
1 2 3 2 5 3 NULL NULL NULL NULL 3 3 NULL NULL NULL NULL NULL NULL 1 2
|
||||
SELECT t2.a,t2.b
|
||||
FROM t2;
|
||||
|
|
@ -1203,7 +1203,7 @@ EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON c < 3 and b = c;
|
|||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index NULL a 5 NULL 21 Using index
|
||||
1 SIMPLE t3 index c c 5 NULL 6 Using index
|
||||
1 SIMPLE t2 ref b b 5 test.t3.c 2 Using index
|
||||
1 SIMPLE t2 ref b b 5 test.t3.c 1 Using index
|
||||
EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index NULL a 5 NULL # Using index
|
||||
|
|
@ -1484,8 +1484,8 @@ explain select * from t1 left join
|
|||
on (t1.a = t2.a);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 10
|
||||
1 SIMPLE t2 ref a a 5 test.t1.a 11
|
||||
1 SIMPLE t3 ref a a 5 test.t2.a 11
|
||||
1 SIMPLE t2 ref a a 5 test.t1.a 1
|
||||
1 SIMPLE t3 ref a a 5 test.t2.a 1
|
||||
drop table t1, t2, t3;
|
||||
CREATE TABLE t1 (id int NOT NULL PRIMARY KEY, type varchar(10));
|
||||
CREATE TABLE t2 (pid int NOT NULL PRIMARY KEY, type varchar(10));
|
||||
|
|
|
|||
|
|
@ -153,7 +153,7 @@ t1 0 PRIMARY 1 d A 0 NULL NULL BTREE
|
|||
t1 0 a 1 a A 0 NULL NULL BTREE
|
||||
t1 0 e 1 e A 0 NULL NULL BTREE
|
||||
t1 0 b 1 b A 0 NULL NULL YES BTREE
|
||||
t1 1 c 1 c A NULL NULL NULL YES BTREE
|
||||
t1 1 c 1 c A 0 NULL NULL YES BTREE
|
||||
drop table t1;
|
||||
CREATE TABLE t1 (c CHAR(10) NOT NULL,i INT NOT NULL AUTO_INCREMENT,
|
||||
UNIQUE (c,i));
|
||||
|
|
|
|||
|
|
@ -122,7 +122,7 @@ i
|
|||
explain select count(*) from t1, t2 where t1.p = t2.i;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index PRIMARY PRIMARY 4 NULL 2 Using index
|
||||
1 SIMPLE t2 ref k1 k1 5 test.t1.p 2 Using where; Using index
|
||||
1 SIMPLE t2 ref k1 k1 5 test.t1.p 1 Using where; Using index
|
||||
select count(*) from t1, t2 where t1.p = t2.i;
|
||||
count(*)
|
||||
3
|
||||
|
|
@ -257,8 +257,6 @@ test.t2 assign_to_keycache note The storage engine for the table doesn't support
|
|||
drop table t1,t2,t3;
|
||||
set global keycache2.key_buffer_size=0;
|
||||
set global keycache3.key_buffer_size=100;
|
||||
Warnings:
|
||||
Warning 1292 Truncated incorrect key_buffer_size value: '100'
|
||||
set global keycache3.key_buffer_size=0;
|
||||
create table t1 (mytext text, FULLTEXT (mytext)) engine=myisam;
|
||||
insert t1 values ('aaabbb');
|
||||
|
|
|
|||
|
|
@ -36,7 +36,7 @@ a a a a
|
|||
explain select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL a NULL NULL NULL 5
|
||||
1 SIMPLE t2 ALL b NULL NULL NULL 5 Using where; Using join buffer
|
||||
1 SIMPLE t2 ref b b 4 test.t1.a 1 Using where
|
||||
select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B order by binary t1.a,t2.a;
|
||||
a b a b
|
||||
A B a a
|
||||
|
|
|
|||
|
|
@ -119,7 +119,7 @@ create table t1Aa (col1 int);
|
|||
create view v1Aa as select col1 from t1Aa as AaA;
|
||||
show create view v1AA;
|
||||
View Create View character_set_client collation_connection
|
||||
v1aa CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1aa` AS select `AaA`.`col1` AS `col1` from `t1aa` `AaA` latin1 latin1_swedish_ci
|
||||
v1aa CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1aa` AS select `aaa`.`col1` AS `col1` from `t1aa` `aaa` latin1 latin1_swedish_ci
|
||||
drop view v1AA;
|
||||
select Aaa.col1 from t1Aa as AaA;
|
||||
col1
|
||||
|
|
@ -128,7 +128,7 @@ drop view v1AA;
|
|||
create view v1Aa as select AaA.col1 from t1Aa as AaA;
|
||||
show create view v1AA;
|
||||
View Create View character_set_client collation_connection
|
||||
v1aa CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1aa` AS select `AaA`.`col1` AS `col1` from `t1aa` `AaA` latin1 latin1_swedish_ci
|
||||
v1aa CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1aa` AS select `aaa`.`col1` AS `col1` from `t1aa` `aaa` latin1 latin1_swedish_ci
|
||||
drop view v1AA;
|
||||
drop table t1Aa;
|
||||
CREATE TABLE t1 (a int, b int);
|
||||
|
|
@ -142,7 +142,7 @@ CREATE OR REPLACE VIEW v1 AS
|
|||
select X.a from t1 AS X group by X.b having (X.a = 1);
|
||||
SHOW CREATE VIEW v1;
|
||||
View Create View character_set_client collation_connection
|
||||
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `X`.`a` AS `a` from `t1` `X` group by `X`.`b` having (`X`.`a` = 1) latin1 latin1_swedish_ci
|
||||
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `x`.`a` AS `a` from `t1` `x` group by `x`.`b` having (`x`.`a` = 1) latin1 latin1_swedish_ci
|
||||
SELECT * FROM v1;
|
||||
a
|
||||
DROP VIEW v1;
|
||||
|
|
|
|||
|
|
@ -107,7 +107,21 @@ Database: information_schema
|
|||
| TRIGGERS |
|
||||
| USER_PRIVILEGES |
|
||||
| VIEWS |
|
||||
| INNODB_BUFFER_POOL_PAGES |
|
||||
| PBXT_STATISTICS |
|
||||
| INNODB_CMP |
|
||||
| INNODB_RSEG |
|
||||
| XTRADB_ENHANCEMENTS |
|
||||
| INNODB_BUFFER_POOL_PAGES_INDEX |
|
||||
| INNODB_INDEX_STATS |
|
||||
| INNODB_TRX |
|
||||
| INNODB_CMP_RESET |
|
||||
| INNODB_LOCK_WAITS |
|
||||
| INNODB_CMPMEM_RESET |
|
||||
| INNODB_LOCKS |
|
||||
| INNODB_CMPMEM |
|
||||
| INNODB_TABLE_STATS |
|
||||
| INNODB_BUFFER_POOL_PAGES_BLOB |
|
||||
+---------------------------------------+
|
||||
Database: INFORMATION_SCHEMA
|
||||
+---------------------------------------+
|
||||
|
|
@ -141,7 +155,21 @@ Database: INFORMATION_SCHEMA
|
|||
| TRIGGERS |
|
||||
| USER_PRIVILEGES |
|
||||
| VIEWS |
|
||||
| INNODB_BUFFER_POOL_PAGES |
|
||||
| PBXT_STATISTICS |
|
||||
| INNODB_CMP |
|
||||
| INNODB_RSEG |
|
||||
| XTRADB_ENHANCEMENTS |
|
||||
| INNODB_BUFFER_POOL_PAGES_INDEX |
|
||||
| INNODB_INDEX_STATS |
|
||||
| INNODB_TRX |
|
||||
| INNODB_CMP_RESET |
|
||||
| INNODB_LOCK_WAITS |
|
||||
| INNODB_CMPMEM_RESET |
|
||||
| INNODB_LOCKS |
|
||||
| INNODB_CMPMEM |
|
||||
| INNODB_TABLE_STATS |
|
||||
| INNODB_BUFFER_POOL_PAGES_BLOB |
|
||||
+---------------------------------------+
|
||||
Wildcard: inf_rmation_schema
|
||||
+--------------------+
|
||||
|
|
|
|||
|
|
@ -93,9 +93,11 @@ INSERT INTO t1 SET a = "", d= "2003-01-14 03:54:55";
|
|||
Warnings:
|
||||
Warning 1265 Data truncated for column 'd' at row 1
|
||||
UPDATE t1 SET d=1/NULL;
|
||||
ERROR 23000: Column 'd' cannot be null
|
||||
Warnings:
|
||||
Warning 1265 Data truncated for column 'd' at row 1
|
||||
UPDATE t1 SET d=NULL;
|
||||
ERROR 23000: Column 'd' cannot be null
|
||||
Warnings:
|
||||
Warning 1048 Column 'd' cannot be null
|
||||
INSERT INTO t1 (a) values (null);
|
||||
ERROR 23000: Column 'a' cannot be null
|
||||
INSERT INTO t1 (a) values (1/null);
|
||||
|
|
@ -130,7 +132,7 @@ Warning 1048 Column 'd' cannot be null
|
|||
Warning 1048 Column 'd' cannot be null
|
||||
select * from t1;
|
||||
a b c d
|
||||
0 0000-00-00 00:00:00 2003
|
||||
0 0000-00-00 00:00:00 0
|
||||
0 0000-00-00 00:00:00 0
|
||||
0 0000-00-00 00:00:00 0
|
||||
0 0000-00-00 00:00:00 0
|
||||
|
|
|
|||
|
|
@ -407,8 +407,8 @@ EXPLAIN SELECT SQL_CALC_FOUND_ROWS * FROM t1 LEFT JOIN t2 ON t1.a=t2.a
|
|||
LEFT JOIN t3 ON t2.b=t3.b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 4
|
||||
1 SIMPLE t2 ref idx idx 5 test.t1.a 2
|
||||
1 SIMPLE t3 ref idx idx 5 test.t2.b 186 Using index
|
||||
1 SIMPLE t2 ref idx idx 5 test.t1.a 1
|
||||
1 SIMPLE t3 ref idx idx 5 test.t2.b 1 Using index
|
||||
FLUSH STATUS ;
|
||||
SELECT SQL_CALC_FOUND_ROWS * FROM t1 LEFT JOIN t2 ON t1.a=t2.a
|
||||
LEFT JOIN t3 ON t2.b=t3.b;
|
||||
|
|
|
|||
|
|
@ -338,12 +338,12 @@ select * from t1 X, t1 Y
|
|||
where X.b = Y.b and (X.a=1 or X.a=2) and (Y.a=2 or Y.a=3);
|
||||
id select_type table partitions type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE X p1,p2 ALL a,b NULL NULL NULL 2 Using where
|
||||
1 SIMPLE Y p2,p3 ref a,b b 4 test.X.b 2 Using where
|
||||
1 SIMPLE Y p2,p3 ref a,b b 4 test.X.b 1 Using where
|
||||
explain partitions
|
||||
select * from t1 X, t1 Y where X.a = Y.a and (X.a=1 or X.a=2);
|
||||
id select_type table partitions type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE X p1,p2 ALL a NULL NULL NULL 4 Using where
|
||||
1 SIMPLE Y p1,p2 ref a a 4 test.X.a 2
|
||||
1 SIMPLE Y p1,p2 ref a a 4 test.X.a 1
|
||||
drop table t1;
|
||||
create table t1 (a int) partition by hash(a) partitions 20;
|
||||
insert into t1 values (1),(2),(3);
|
||||
|
|
|
|||
|
|
@ -1218,3 +1218,59 @@ c1 c2
|
|||
0 opq
|
||||
1 jkl
|
||||
DROP TABLE t1;
|
||||
create table parent (id int primary key);
|
||||
create table child (id int PRIMARY KEY, FOREIGN KEY (id) REFERENCES parent(id));
|
||||
insert into parent values (2), (3), (4);
|
||||
insert into child values (3), (4);
|
||||
delete ignore from parent;
|
||||
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (Constraint: `FOREIGN_1`)
|
||||
select * from parent;
|
||||
id
|
||||
2
|
||||
3
|
||||
4
|
||||
drop table child, parent;
|
||||
create schema test378222;
|
||||
use test378222;
|
||||
create table t1 (id int primary key);
|
||||
create table t2 (id int primary key);
|
||||
alter table t1 add constraint foreign key (id) references t2 (id);
|
||||
alter table t2 add constraint foreign key (id) references t1 (id);
|
||||
drop schema test378222;
|
||||
create schema test378222a;
|
||||
create schema test378222b;
|
||||
create table test378222a.t1 (id int primary key);
|
||||
create table test378222b.t2 (id int primary key);
|
||||
alter table test378222a.t1 add constraint foreign key (id) references test378222b.t2 (id);
|
||||
alter table test378222b.t2 add constraint foreign key (id) references test378222a.t1 (id);
|
||||
set foreign_key_checks = 1;
|
||||
drop schema test378222a;
|
||||
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails
|
||||
drop schema test378222b;
|
||||
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails
|
||||
set foreign_key_checks = 0;
|
||||
drop schema test378222a;
|
||||
drop schema test378222b;
|
||||
set foreign_key_checks = 1;
|
||||
use test;
|
||||
CREATE TABLE t1(c1 TINYINT AUTO_INCREMENT NULL KEY ) AUTO_INCREMENT=10;
|
||||
SHOW CREATE TABLE t1;
|
||||
Table Create Table
|
||||
t1 CREATE TABLE `t1` (
|
||||
`c1` tinyint(4) NOT NULL AUTO_INCREMENT,
|
||||
PRIMARY KEY (`c1`)
|
||||
) ENGINE=PBXT AUTO_INCREMENT=10 DEFAULT CHARSET=latin1
|
||||
INSERT INTO t1 VALUES(null);
|
||||
INSERT INTO t1 VALUES(null);
|
||||
INSERT INTO t1 VALUES(null);
|
||||
SELECT * FROM t1;
|
||||
c1
|
||||
10
|
||||
11
|
||||
12
|
||||
TRUNCATE TABLE t1;
|
||||
INSERT INTO t1 VALUES(null);
|
||||
SELECT * FROM t1;
|
||||
c1
|
||||
1
|
||||
DROP TABLE t1;
|
||||
|
|
|
|||
|
|
@ -166,7 +166,7 @@ child CREATE TABLE `child` (
|
|||
`parent_id` int(11) DEFAULT NULL,
|
||||
KEY `par_ind` (`parent_id`),
|
||||
KEY `child_ind` (`id`),
|
||||
CONSTRAINT `FOREIGN_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`)
|
||||
CONSTRAINT `FOREIGN_1` FOREIGN KEY (`parent_id`) REFERENCES `test`.`parent` (`id`)
|
||||
) ENGINE=PBXT DEFAULT CHARSET=latin1
|
||||
drop index child_ind on child;
|
||||
show create table child;
|
||||
|
|
@ -175,7 +175,7 @@ child CREATE TABLE `child` (
|
|||
`id` int(11) DEFAULT NULL,
|
||||
`parent_id` int(11) DEFAULT NULL,
|
||||
KEY `par_ind` (`parent_id`),
|
||||
CONSTRAINT `FOREIGN_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`)
|
||||
CONSTRAINT `FOREIGN_1` FOREIGN KEY (`parent_id`) REFERENCES `test`.`parent` (`id`)
|
||||
) ENGINE=PBXT DEFAULT CHARSET=latin1
|
||||
alter table parent add column c1 varchar(40);
|
||||
insert child values(2000, 2);
|
||||
|
|
@ -243,7 +243,7 @@ child CREATE TABLE `child` (
|
|||
`id` int(11) DEFAULT NULL,
|
||||
`parent_id` int(11) DEFAULT NULL,
|
||||
KEY `par_ind` (`parent_id`),
|
||||
CONSTRAINT `FOREIGN_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`)
|
||||
CONSTRAINT `FOREIGN_1` FOREIGN KEY (`parent_id`) REFERENCES `test`.`parent` (`id`)
|
||||
) ENGINE=PBXT DEFAULT CHARSET=latin1
|
||||
alter table child add column c1 varchar(40);
|
||||
insert child values(400, 1, "asd");
|
||||
|
|
@ -284,7 +284,7 @@ child CREATE TABLE `child` (
|
|||
`id` int(11) DEFAULT NULL,
|
||||
`parent_id` int(11) DEFAULT NULL,
|
||||
KEY `par_ind` (`parent_id`),
|
||||
CONSTRAINT `FOREIGN_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`) ON DELETE CASCADE
|
||||
CONSTRAINT `FOREIGN_1` FOREIGN KEY (`parent_id`) REFERENCES `test`.`parent` (`id`) ON DELETE CASCADE
|
||||
) ENGINE=PBXT DEFAULT CHARSET=latin1
|
||||
insert parent values(1);
|
||||
insert child values(100, 1);
|
||||
|
|
|
|||
|
|
@ -144,7 +144,7 @@ Key_reads 0
|
|||
load index into cache t3, t2 key (primary,b) ;
|
||||
Table Op Msg_type Msg_text
|
||||
test.t3 preload_keys Error Table 'test.t3' doesn't exist
|
||||
test.t3 preload_keys error Corrupt
|
||||
test.t3 preload_keys status Operation failed
|
||||
test.t2 preload_keys note The storage engine for the table doesn't support preload_keys
|
||||
show status like "key_read%";
|
||||
Variable_name Value
|
||||
|
|
@ -159,7 +159,7 @@ Key_reads 0
|
|||
load index into cache t3 key (b), t2 key (c) ;
|
||||
Table Op Msg_type Msg_text
|
||||
test.t3 preload_keys Error Table 'test.t3' doesn't exist
|
||||
test.t3 preload_keys error Corrupt
|
||||
test.t3 preload_keys status Operation failed
|
||||
test.t2 preload_keys note The storage engine for the table doesn't support preload_keys
|
||||
show status like "key_read%";
|
||||
Variable_name Value
|
||||
|
|
|
|||
|
|
@ -289,11 +289,11 @@ prepare stmt4 from ' show index from t2 from test ';
|
|||
execute stmt4;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t2 0 PRIMARY 1 a A 0 NULL NULL BTREE
|
||||
t2 1 t2_idx 1 b A NULL NULL NULL YES BTREE
|
||||
t2 1 t2_idx 1 b A 0 NULL NULL YES BTREE
|
||||
prepare stmt4 from ' show table status from test like ''t2%'' ';
|
||||
execute stmt4;
|
||||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||||
t2 PBXT 10 Fixed 0 29 1 # 4096 0 NULL # # # latin1_swedish_ci NULL
|
||||
t2 PBXT 10 Fixed 0 29 1024 # 4096 0 NULL # # # latin1_swedish_ci NULL
|
||||
prepare stmt4 from ' show table status from test like ''t9%'' ';
|
||||
execute stmt4;
|
||||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||||
|
|
@ -447,7 +447,7 @@ def type 253 10 3 Y 0 31 8
|
|||
def possible_keys 253 4096 0 Y 0 31 8
|
||||
def key 253 64 0 Y 0 31 8
|
||||
def key_len 253 4096 0 Y 0 31 8
|
||||
def ref 253 1024 0 Y 0 31 8
|
||||
def ref 253 2048 0 Y 0 31 8
|
||||
def rows 8 10 1 Y 32928 0 63
|
||||
def Extra 253 255 14 N 1 31 8
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
|
|
@ -463,7 +463,7 @@ def type 253 10 5 Y 0 31 8
|
|||
def possible_keys 253 4096 7 Y 0 31 8
|
||||
def key 253 64 7 Y 0 31 8
|
||||
def key_len 253 4096 1 Y 0 31 8
|
||||
def ref 253 1024 0 Y 0 31 8
|
||||
def ref 253 2048 0 Y 0 31 8
|
||||
def rows 8 10 1 Y 32928 0 63
|
||||
def Extra 253 255 27 N 1 31 8
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
|
|
|
|||
|
|
@ -423,19 +423,19 @@ test.t2 analyze status OK
|
|||
explain select * from t1, t2 where t1.uid=t2.uid AND t1.uid > 0;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range uid_index uid_index 4 NULL 1 Using where
|
||||
1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 12
|
||||
1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 1
|
||||
explain select * from t1, t2 where t1.uid=t2.uid AND t2.uid > 0;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range uid_index uid_index 4 NULL 1 Using where
|
||||
1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 12
|
||||
1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 1
|
||||
explain select * from t1, t2 where t1.uid=t2.uid AND t1.uid != 0;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range uid_index uid_index 4 NULL 2 Using where
|
||||
1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 12
|
||||
1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 1
|
||||
explain select * from t1, t2 where t1.uid=t2.uid AND t2.uid != 0;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range uid_index uid_index 4 NULL 2 Using where
|
||||
1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 12
|
||||
1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 1
|
||||
select * from t1, t2 where t1.uid=t2.uid AND t1.uid > 0;
|
||||
id name uid id name uid
|
||||
1001 A 1 1001 A 1
|
||||
|
|
|
|||
|
|
@ -3,11 +3,13 @@ create schema foo;
|
|||
show create schema foo;
|
||||
Database Create Database
|
||||
foo CREATE DATABASE `foo` /*!40100 DEFAULT CHARACTER SET latin1 */
|
||||
create table t1 (id int) engine=pbxt;
|
||||
show schemas;
|
||||
Database
|
||||
information_schema
|
||||
foo
|
||||
mtr
|
||||
mysql
|
||||
pbxt
|
||||
test
|
||||
drop schema foo;
|
||||
|
|
|
|||
|
|
@ -604,15 +604,15 @@ id select_type table type possible_keys key key_len ref rows Extra
|
|||
explain select * from t3 as t1,t3 where t1.period=t3.period order by t3.period;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL period NULL NULL NULL 41810 Using temporary; Using filesort
|
||||
1 SIMPLE t3 ref period period 4 test.t1.period 18
|
||||
1 SIMPLE t3 ref period period 4 test.t1.period 1
|
||||
explain select * from t3 as t1,t3 where t1.period=t3.period order by t3.period limit 10;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t3 index period period 4 NULL 1
|
||||
1 SIMPLE t1 ref period period 4 test.t3.period 18
|
||||
1 SIMPLE t3 index period period 4 NULL 10
|
||||
1 SIMPLE t1 ref period period 4 test.t3.period 1
|
||||
explain select * from t3 as t1,t3 where t1.period=t3.period order by t1.period limit 10;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index period period 4 NULL 1
|
||||
1 SIMPLE t3 ref period period 4 test.t1.period 18
|
||||
1 SIMPLE t1 index period period 4 NULL 10
|
||||
1 SIMPLE t3 ref period period 4 test.t1.period 1
|
||||
select period from t1;
|
||||
period
|
||||
9410
|
||||
|
|
@ -2095,7 +2095,7 @@ show keys from t2;
|
|||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t2 0 PRIMARY 1 auto A 1199 NULL NULL BTREE
|
||||
t2 0 fld1 1 fld1 A 1199 NULL NULL BTREE
|
||||
t2 1 fld3 1 fld3 A NULL NULL NULL BTREE
|
||||
t2 1 fld3 1 fld3 A 1199 NULL NULL BTREE
|
||||
drop table t4, t3, t2, t1;
|
||||
DO 1;
|
||||
DO benchmark(100,1+1),1,1;
|
||||
|
|
@ -2369,7 +2369,7 @@ insert into t2 values (1,3), (2,3), (3,4), (4,4);
|
|||
explain select * from t1 left join t2 on a=c where d in (4);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 ref c,d d 5 const 1 Using where
|
||||
1 SIMPLE t1 ref a a 5 test.t2.c 2 Using where
|
||||
1 SIMPLE t1 ref a a 5 test.t2.c 1 Using where
|
||||
select * from t1 left join t2 on a=c where d in (4);
|
||||
a b c d
|
||||
3 2 3 4
|
||||
|
|
@ -2377,7 +2377,7 @@ a b c d
|
|||
explain select * from t1 left join t2 on a=c where d = 4;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 ref c,d d 5 const 1 Using where
|
||||
1 SIMPLE t1 ref a a 5 test.t2.c 2 Using where
|
||||
1 SIMPLE t1 ref a a 5 test.t2.c 1 Using where
|
||||
select * from t1 left join t2 on a=c where d = 4;
|
||||
a b c d
|
||||
3 2 3 4
|
||||
|
|
@ -2403,11 +2403,11 @@ INSERT INTO t2 VALUES ('one'),('two'),('three'),('four'),('five');
|
|||
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 USE INDEX (a) ON t1.a=t2.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
|
||||
1 SIMPLE t2 ref a a 23 test.t1.a 2
|
||||
1 SIMPLE t2 ref a a 23 test.t1.a 1
|
||||
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 FORCE INDEX (a) ON t1.a=t2.a;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
|
||||
1 SIMPLE t2 ref a a 23 test.t1.a 2
|
||||
1 SIMPLE t2 ref a a 23 test.t1.a 1
|
||||
DROP TABLE t1, t2;
|
||||
CREATE TABLE t1 ( city char(30) );
|
||||
INSERT INTO t1 VALUES ('London');
|
||||
|
|
@ -2792,26 +2792,26 @@ id select_type table type possible_keys key key_len ref rows Extra
|
|||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
|
||||
select max(key1) from t1 where key1 <= 0.6158;
|
||||
max(key1)
|
||||
0.61580002307892
|
||||
0.615800023078918
|
||||
select max(key2) from t2 where key2 <= 1.6158;
|
||||
max(key2)
|
||||
1.6158000230789
|
||||
1.61580002307892
|
||||
select min(key1) from t1 where key1 >= 0.3762;
|
||||
min(key1)
|
||||
0.37619999051094
|
||||
0.376199990510941
|
||||
select min(key2) from t2 where key2 >= 1.3762;
|
||||
min(key2)
|
||||
1.3761999607086
|
||||
1.37619996070862
|
||||
select max(key1), min(key2) from t1, t2
|
||||
where key1 <= 0.6158 and key2 >= 1.3762;
|
||||
max(key1) min(key2)
|
||||
0.61580002307892 1.3761999607086
|
||||
0.615800023078918 1.37619996070862
|
||||
select max(key1) from t1 where key1 <= 0.6158 and rand() + 0.5 >= 0.5;
|
||||
max(key1)
|
||||
0.61580002307892
|
||||
0.615800023078918
|
||||
select min(key1) from t1 where key1 >= 0.3762 and rand() + 0.5 >= 0.5;
|
||||
min(key1)
|
||||
0.37619999051094
|
||||
0.376199990510941
|
||||
DROP TABLE t1,t2;
|
||||
CREATE TABLE t1 (i BIGINT UNSIGNED NOT NULL);
|
||||
INSERT INTO t1 VALUES (10);
|
||||
|
|
@ -3454,7 +3454,7 @@ explain select * from t2 A, t2 B where A.a=5 and A.b=5 and A.C<5
|
|||
and B.a=5 and B.b=A.e and (B.b =1 or B.b = 3 or B.b=5);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE A range PRIMARY PRIMARY 12 NULL 1 Using where
|
||||
1 SIMPLE B ref PRIMARY PRIMARY 8 const,test.A.e 11
|
||||
1 SIMPLE B ref PRIMARY PRIMARY 8 const,test.A.e 1
|
||||
drop table t1, t2;
|
||||
CREATE TABLE t1 (a int PRIMARY KEY, b int, INDEX(b));
|
||||
INSERT INTO t1 VALUES (1, 3), (9,4), (7,5), (4,5), (6,2),
|
||||
|
|
@ -3468,12 +3468,12 @@ EXPLAIN
|
|||
SELECT a, c, d, f FROM t1,t2 WHERE a=c AND b BETWEEN 4 AND 6;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range PRIMARY,b b 5 NULL 1 Using where
|
||||
1 SIMPLE t2 ref c c 5 test.t1.a 2 Using where
|
||||
1 SIMPLE t2 ref c c 5 test.t1.a 1 Using where
|
||||
EXPLAIN
|
||||
SELECT a, c, d, f FROM t1,t2 WHERE a=c AND b BETWEEN 4 AND 6 AND a > 0;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range PRIMARY,b PRIMARY 4 NULL 1 Using where
|
||||
1 SIMPLE t2 ref c c 5 test.t1.a 2 Using where
|
||||
1 SIMPLE t2 ref c c 5 test.t1.a 1 Using where
|
||||
DROP TABLE t1, t2;
|
||||
create table t1 (
|
||||
a int unsigned not null auto_increment primary key,
|
||||
|
|
|
|||
|
|
@ -70,12 +70,12 @@ insert into t1 values (null,"a"),(null,"a"),(null,"a"),(null,"a"),(null,"a"),(nu
|
|||
explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL b NULL NULL NULL 21
|
||||
1 SIMPLE t2 ref b b 21 test.t1.b 2 Using where
|
||||
1 SIMPLE t2 ref b b 21 test.t1.b 1 Using where
|
||||
set MAX_SEEKS_FOR_KEY=1;
|
||||
explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 ALL b NULL NULL NULL 21
|
||||
1 SIMPLE t2 ref b b 21 test.t1.b 2 Using where
|
||||
1 SIMPLE t2 ref b b 21 test.t1.b 1 Using where
|
||||
SET MAX_SEEKS_FOR_KEY=DEFAULT;
|
||||
drop table t1;
|
||||
create table t1 (a int);
|
||||
|
|
|
|||
|
|
@ -1333,7 +1333,7 @@ a
|
|||
explain extended select * from t2 where t2.a in (select a from t1);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1001 100.00 Using index; Using where
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1 100.00 Using index; Using where
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))
|
||||
select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
|
||||
|
|
@ -1343,7 +1343,7 @@ a
|
|||
explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1001 100.00 Using index; Using where
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1 100.00 Using index; Using where
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))
|
||||
select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
|
||||
|
|
@ -1353,8 +1353,8 @@ a
|
|||
explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index
|
||||
2 DEPENDENT SUBQUERY t1 ref a a 5 func 1001 100.00 Using where; Using index
|
||||
2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index; Using join buffer
|
||||
2 DEPENDENT SUBQUERY t1 ref a a 5 func 1 100.00 Using where; Using index
|
||||
2 DEPENDENT SUBQUERY t3 ref a a 5 test.t1.b 1 100.00 Using where; Using index
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select 1 AS `Not_used` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))
|
||||
insert into t1 values (3,31);
|
||||
|
|
@ -1370,7 +1370,7 @@ a
|
|||
explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1001 100.00 Using index; Using where
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1 100.00 Using index; Using where
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))
|
||||
drop table t1, t2, t3;
|
||||
|
|
@ -3546,7 +3546,7 @@ ORDER BY t1.t DESC LIMIT 1);
|
|||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t2 ALL NULL NULL NULL NULL 1
|
||||
1 PRIMARY t1 index NULL PRIMARY 16 NULL 11 Using where; Using index; Using join buffer
|
||||
2 DEPENDENT SUBQUERY t1 ref PRIMARY PRIMARY 8 test.t2.i1,const 2 Using where; Using index; Using filesort
|
||||
2 DEPENDENT SUBQUERY t1 ref PRIMARY PRIMARY 8 test.t2.i1,const 1 Using where; Using index; Using filesort
|
||||
SELECT * FROM t1,t2
|
||||
WHERE t1.t = (SELECT t1.t FROM t1
|
||||
WHERE t1.t < t2.t AND t1.i2=1 AND t2.i1=t1.i1
|
||||
|
|
@ -4214,7 +4214,7 @@ CREATE INDEX I2 ON t1 (b);
|
|||
EXPLAIN SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery I1 I1 2 func 2 Using index; Using where
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery I1 I1 2 func 1 Using index; Using where
|
||||
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1);
|
||||
a b
|
||||
CREATE TABLE t2 (a VARCHAR(1), b VARCHAR(10));
|
||||
|
|
@ -4224,14 +4224,14 @@ CREATE INDEX I2 ON t2 (b);
|
|||
EXPLAIN SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
|
||||
2 DEPENDENT SUBQUERY t2 index_subquery I1 I1 4 func 2 Using index; Using where
|
||||
2 DEPENDENT SUBQUERY t2 index_subquery I1 I1 4 func 1 Using index; Using where
|
||||
SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2);
|
||||
a b
|
||||
EXPLAIN
|
||||
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery I1 I1 2 func 2 Using index; Using where
|
||||
2 DEPENDENT SUBQUERY t1 index_subquery I1 I1 2 func 1 Using index; Using where
|
||||
SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
|
||||
a b
|
||||
DROP TABLE t1,t2;
|
||||
|
|
|
|||
|
|
@ -1776,8 +1776,14 @@ t1 CREATE TABLE `t1` (
|
|||
`russian_deviant` enum('E','F','E<>F','F,E') NOT NULL DEFAULT 'E'
|
||||
) ENGINE=PBXT DEFAULT CHARSET=latin1
|
||||
drop table t1;
|
||||
select @@SESSION.sql_mode;
|
||||
@@SESSION.sql_mode
|
||||
|
||||
select @@GLOBAL.sql_mode;
|
||||
@@GLOBAL.sql_mode
|
||||
|
||||
create table t1(exhausting_charset enum('ABCDEFGHIJKLMNOPQRSTUVWXYZ','
|
||||
|
||||
!"','#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~','xx\','yy\€','zz亗儎厗噲墛媽崕彁憭摂晼棙櫄洔潪煚、￥ウЖ┆<D096><E29486><EFBFBD>辈炒刀犯购患骄坷谅媚牌侨墒颂臀闲岩釉罩棕仝圮蒉哙徕沅彐玷殛腱眍镳耱篝貊鼬<E8B28A><E9BCAC><EFBFBD><EFBFBD>'));
|
||||
ERROR HY000: Can't create table 'test.t1' (errno: -1)
|
||||
drop table t1;
|
||||
End of 5.1 tests
|
||||
|
|
|
|||
|
|
@ -70,19 +70,19 @@ flags set('one','two','tree') latin1_swedish_ci NO #
|
|||
show keys from t1;
|
||||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||||
t1 0 PRIMARY 1 auto A 0 NULL NULL BTREE
|
||||
t1 1 utiny 1 utiny A NULL NULL NULL BTREE
|
||||
t1 1 tiny 1 tiny A NULL NULL NULL BTREE
|
||||
t1 1 short 1 short A NULL NULL NULL BTREE
|
||||
t1 1 any_name 1 medium A NULL NULL NULL BTREE
|
||||
t1 1 longlong 1 longlong A NULL NULL NULL BTREE
|
||||
t1 1 real_float 1 real_float A NULL NULL NULL BTREE
|
||||
t1 1 ushort 1 ushort A NULL NULL NULL BTREE
|
||||
t1 1 umedium 1 umedium A NULL NULL NULL BTREE
|
||||
t1 1 ulong 1 ulong A NULL NULL NULL BTREE
|
||||
t1 1 ulonglong 1 ulonglong A NULL NULL NULL BTREE
|
||||
t1 1 ulonglong 2 ulong A NULL NULL NULL BTREE
|
||||
t1 1 options 1 options A NULL NULL NULL BTREE
|
||||
t1 1 options 2 flags A NULL NULL NULL BTREE
|
||||
t1 1 utiny 1 utiny A 0 NULL NULL BTREE
|
||||
t1 1 tiny 1 tiny A 0 NULL NULL BTREE
|
||||
t1 1 short 1 short A 0 NULL NULL BTREE
|
||||
t1 1 any_name 1 medium A 0 NULL NULL BTREE
|
||||
t1 1 longlong 1 longlong A 0 NULL NULL BTREE
|
||||
t1 1 real_float 1 real_float A 0 NULL NULL BTREE
|
||||
t1 1 ushort 1 ushort A 0 NULL NULL BTREE
|
||||
t1 1 umedium 1 umedium A 0 NULL NULL BTREE
|
||||
t1 1 ulong 1 ulong A 0 NULL NULL BTREE
|
||||
t1 1 ulonglong 1 ulonglong A 0 NULL NULL BTREE
|
||||
t1 1 ulonglong 2 ulong A 0 NULL NULL BTREE
|
||||
t1 1 options 1 options A 0 NULL NULL BTREE
|
||||
t1 1 options 2 flags A 0 NULL NULL BTREE
|
||||
CREATE UNIQUE INDEX test on t1 ( auto ) ;
|
||||
CREATE INDEX test2 on t1 ( ulonglong,ulong) ;
|
||||
CREATE INDEX test3 on t1 ( medium ) ;
|
||||
|
|
|
|||
|
|
@ -101,13 +101,13 @@ create table t1 (t2 timestamp(2), t4 timestamp(4), t6 timestamp(6),
|
|||
t8 timestamp(8), t10 timestamp(10), t12 timestamp(12),
|
||||
t14 timestamp(14));
|
||||
Warnings:
|
||||
Warning 1287 The syntax 'TIMESTAMP(2)' is deprecated and will be removed in MySQL 5.2. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(4)' is deprecated and will be removed in MySQL 5.2. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(6)' is deprecated and will be removed in MySQL 5.2. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(8)' is deprecated and will be removed in MySQL 5.2. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(10)' is deprecated and will be removed in MySQL 5.2. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(12)' is deprecated and will be removed in MySQL 5.2. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(14)' is deprecated and will be removed in MySQL 5.2. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(2)' is deprecated and will be removed in MySQL 6.0. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(4)' is deprecated and will be removed in MySQL 6.0. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(6)' is deprecated and will be removed in MySQL 6.0. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(8)' is deprecated and will be removed in MySQL 6.0. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(10)' is deprecated and will be removed in MySQL 6.0. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(12)' is deprecated and will be removed in MySQL 6.0. Please use 'TIMESTAMP' instead
|
||||
Warning 1287 The syntax 'TIMESTAMP(14)' is deprecated and will be removed in MySQL 6.0. Please use 'TIMESTAMP' instead
|
||||
insert t1 values (0,0,0,0,0,0,0),
|
||||
("1997-12-31 23:47:59", "1997-12-31 23:47:59", "1997-12-31 23:47:59",
|
||||
"1997-12-31 23:47:59", "1997-12-31 23:47:59", "1997-12-31 23:47:59",
|
||||
|
|
|
|||
|
|
@ -1301,12 +1301,14 @@ t3 CREATE TABLE `t3` (
|
|||
`left(a,100000000)` longtext
|
||||
) ENGINE=PBXT DEFAULT CHARSET=latin1
|
||||
drop tables t1,t2,t3;
|
||||
SELECT @tmp_max:= @@global.max_allowed_packet;
|
||||
@tmp_max:= @@global.max_allowed_packet
|
||||
1048576
|
||||
SET @@global.max_allowed_packet=25000000;
|
||||
CREATE TABLE t1 (a mediumtext);
|
||||
CREATE TABLE t2 (b varchar(20));
|
||||
INSERT INTO t1 VALUES ('a');
|
||||
CREATE TABLE t3 SELECT REPEAT(a,20000000) AS a FROM t1 UNION SELECT b FROM t2;
|
||||
Warnings:
|
||||
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
||||
SHOW CREATE TABLE t3;
|
||||
Table Create Table
|
||||
t3 CREATE TABLE `t3` (
|
||||
|
|
@ -1340,6 +1342,7 @@ t3 CREATE TABLE `t3` (
|
|||
`a` varbinary(510) DEFAULT NULL
|
||||
) ENGINE=PBXT DEFAULT CHARSET=latin1
|
||||
DROP TABLES t1,t2,t3;
|
||||
SET @@global.max_allowed_packet:= @tmp_max;
|
||||
create table t1 ( id int not null auto_increment, primary key (id), col1 int);
|
||||
insert into t1 (col1) values (2),(3),(4),(5),(6);
|
||||
select 99 union all select id from t1 order by 1;
|
||||
|
|
|
|||
|
|
@ -28,7 +28,7 @@ create view v2 as select * from mysqltest.t2;
|
|||
ERROR 42000: ANY command denied to user 'mysqltest_1'@'localhost' for table 't2'
|
||||
show create view v1;
|
||||
View Create View character_set_client collation_connection
|
||||
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`mysqltest_1`@`localhost` SQL SECURITY DEFINER VIEW `test`.`v1` AS select `mysqltest`.`t1`.`a` AS `a`,`mysqltest`.`t1`.`b` AS `b` from `mysqltest`.`t1` latin1 latin1_swedish_ci
|
||||
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`mysqltest_1`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `mysqltest`.`t1`.`a` AS `a`,`mysqltest`.`t1`.`b` AS `b` from `mysqltest`.`t1` latin1 latin1_swedish_ci
|
||||
grant create view,drop,select on test.* to mysqltest_1@localhost;
|
||||
use test;
|
||||
alter view v1 as select * from mysqltest.t1;
|
||||
|
|
@ -309,7 +309,7 @@ grant create view,select on test.* to mysqltest_1@localhost;
|
|||
create view v1 as select * from mysqltest.t1;
|
||||
show create view v1;
|
||||
View Create View character_set_client collation_connection
|
||||
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`mysqltest_1`@`localhost` SQL SECURITY DEFINER VIEW `test`.`v1` AS select `mysqltest`.`t1`.`a` AS `a`,`mysqltest`.`t1`.`b` AS `b` from `mysqltest`.`t1` latin1 latin1_swedish_ci
|
||||
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`mysqltest_1`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `mysqltest`.`t1`.`a` AS `a`,`mysqltest`.`t1`.`b` AS `b` from `mysqltest`.`t1` latin1 latin1_swedish_ci
|
||||
revoke select on mysqltest.t1 from mysqltest_1@localhost;
|
||||
select * from v1;
|
||||
ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
|
||||
|
|
|
|||
|
|
@ -150,7 +150,6 @@ delete from t1 where a=0;
|
|||
update t1 set a=0 where b=5;
|
||||
select * from t1 order by b;
|
||||
delete from t1 where a=0;
|
||||
--error 1048
|
||||
update t1 set a=NULL where b=6;
|
||||
update t1 set a=300 where b=7;
|
||||
SET SQL_MODE='';
|
||||
|
|
@ -166,7 +165,6 @@ delete from t1 where a=0;
|
|||
update t1 set a=0 where b=12;
|
||||
select * from t1 order by b;
|
||||
delete from t1 where a=0;
|
||||
--error 1048
|
||||
update t1 set a=NULL where b=13;
|
||||
update t1 set a=500 where b=14;
|
||||
select * from t1 order by b;
|
||||
|
|
|
|||
|
|
@ -120,13 +120,16 @@ select * from t2;
|
|||
delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
|
||||
select * from t11;
|
||||
select * from t12;
|
||||
--error 1242
|
||||
delete ignore t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
|
||||
select * from t11;
|
||||
select * from t12;
|
||||
--error 1062
|
||||
insert into t11 values (2, 12);
|
||||
-- error 1242
|
||||
delete from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
|
||||
select * from t11;
|
||||
--error 1242
|
||||
delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
|
||||
select * from t11;
|
||||
drop table t11, t12, t2;
|
||||
|
|
|
|||
|
|
@ -546,6 +546,7 @@ SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
|||
|
||||
CREATE INDEX idx_b ON t8(b);
|
||||
|
||||
--sorted_result
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
||||
t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
|
||||
|
|
@ -585,6 +586,7 @@ SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
|||
CREATE INDEX idx_b ON t1(b);
|
||||
CREATE INDEX idx_a ON t0(a);
|
||||
|
||||
--sorted_result
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
||||
t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
|
||||
|
|
@ -621,6 +623,7 @@ SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
|||
(t8.b=t9.b OR t8.c IS NULL) AND
|
||||
(t9.a=1);
|
||||
|
||||
--sorted_result
|
||||
SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
|
||||
t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
|
||||
FROM t0,t1
|
||||
|
|
|
|||
1
mysql-test/suite/pbxt/t/lowercase_table_grant-master.opt
Normal file
1
mysql-test/suite/pbxt/t/lowercase_table_grant-master.opt
Normal file
|
|
@ -0,0 +1 @@
|
|||
--lower_case_table_names
|
||||
|
|
@ -0,0 +1 @@
|
|||
--lower_case_table_names
|
||||
1
mysql-test/suite/pbxt/t/lowercase_view-master.opt
Normal file
1
mysql-test/suite/pbxt/t/lowercase_view-master.opt
Normal file
|
|
@ -0,0 +1 @@
|
|||
--lower_case_table_names=1
|
||||
|
|
@ -61,9 +61,7 @@ drop table t1;
|
|||
#
|
||||
CREATE TABLE t1 (a varchar(16) NOT NULL default '', b smallint(6) NOT NULL default 0, c datetime NOT NULL default '0000-00-00 00:00:00', d smallint(6) NOT NULL default 0);
|
||||
INSERT INTO t1 SET a = "", d= "2003-01-14 03:54:55";
|
||||
--error 1048
|
||||
UPDATE t1 SET d=1/NULL;
|
||||
--error 1048
|
||||
UPDATE t1 SET d=NULL;
|
||||
--error 1048
|
||||
INSERT INTO t1 (a) values (null);
|
||||
|
|
|
|||
|
|
@ -926,7 +926,59 @@ LOAD DATA LOCAL INFILE 'suite/pbxt/t/load_unique_error1.inc' REPLACE INTO TABLE
|
|||
SELECT * FROM t1 ORDER BY c1;
|
||||
DROP TABLE t1;
|
||||
|
||||
create table parent (id int primary key);
|
||||
create table child (id int PRIMARY KEY, FOREIGN KEY (id) REFERENCES parent(id));
|
||||
insert into parent values (2), (3), (4);
|
||||
insert into child values (3), (4);
|
||||
|
||||
--error 1451
|
||||
delete ignore from parent;
|
||||
--sorted_result
|
||||
select * from parent;
|
||||
|
||||
drop table child, parent;
|
||||
|
||||
# bug 378222: Drop sakila causes error: Cannot delete or update a parent row: a foreign key constraint fails
|
||||
|
||||
create schema test378222;
|
||||
use test378222;
|
||||
create table t1 (id int primary key);
|
||||
create table t2 (id int primary key);
|
||||
alter table t1 add constraint foreign key (id) references t2 (id);
|
||||
alter table t2 add constraint foreign key (id) references t1 (id);
|
||||
drop schema test378222;
|
||||
|
||||
create schema test378222a;
|
||||
create schema test378222b;
|
||||
create table test378222a.t1 (id int primary key);
|
||||
create table test378222b.t2 (id int primary key);
|
||||
alter table test378222a.t1 add constraint foreign key (id) references test378222b.t2 (id);
|
||||
alter table test378222b.t2 add constraint foreign key (id) references test378222a.t1 (id);
|
||||
set foreign_key_checks = 1;
|
||||
--error 1217
|
||||
drop schema test378222a;
|
||||
--error 1217
|
||||
drop schema test378222b;
|
||||
set foreign_key_checks = 0;
|
||||
drop schema test378222a;
|
||||
drop schema test378222b;
|
||||
set foreign_key_checks = 1;
|
||||
use test;
|
||||
|
||||
# bug 369086: Incosistent/Incorrect Truncate behavior
|
||||
CREATE TABLE t1(c1 TINYINT AUTO_INCREMENT NULL KEY ) AUTO_INCREMENT=10;
|
||||
SHOW CREATE TABLE t1;
|
||||
INSERT INTO t1 VALUES(null);
|
||||
INSERT INTO t1 VALUES(null);
|
||||
INSERT INTO t1 VALUES(null);
|
||||
SELECT * FROM t1;
|
||||
TRUNCATE TABLE t1;
|
||||
INSERT INTO t1 VALUES(null);
|
||||
SELECT * FROM t1;
|
||||
DROP TABLE t1;
|
||||
|
||||
--disable_query_log
|
||||
|
||||
DROP TABLE t2, t5;
|
||||
drop database pbxt;
|
||||
--enable_query_log
|
||||
|
|
|
|||
|
|
@ -63,7 +63,28 @@ connection con2;
|
|||
# Wait for the the tables to be renamed
|
||||
# i.e the query below succeds
|
||||
let $query= select * from t2, t4;
|
||||
source include/wait_for_query_to_suceed.inc;
|
||||
# source include/wait_for_query_to_suceed.inc;
|
||||
let $counter= 100;
|
||||
|
||||
disable_abort_on_error;
|
||||
disable_query_log;
|
||||
disable_result_log;
|
||||
eval $query;
|
||||
while ($mysql_errno)
|
||||
{
|
||||
eval $query;
|
||||
sleep 0.1;
|
||||
dec $counter;
|
||||
|
||||
if (!$counter)
|
||||
{
|
||||
die("Waited too long for query to suceed");
|
||||
}
|
||||
}
|
||||
enable_abort_on_error;
|
||||
enable_query_log;
|
||||
enable_result_log;
|
||||
|
||||
|
||||
show tables;
|
||||
|
||||
|
|
|
|||
|
|
@ -10,5 +10,12 @@ drop database if exists mysqltest1;
|
|||
|
||||
create schema foo;
|
||||
show create schema foo;
|
||||
# force PBXT schema to be created
|
||||
create table t1 (id int) engine=pbxt;
|
||||
show schemas;
|
||||
drop schema foo;
|
||||
|
||||
--disable_query_log
|
||||
drop table if exists t1;
|
||||
drop database pbxt;
|
||||
--enable_query_log
|
||||
|
|
|
|||
|
|
@ -153,12 +153,19 @@ create table t1(russian_deviant enum('E','F','E
|
|||
show create table t1;
|
||||
drop table t1;
|
||||
|
||||
# ER_WRONG_FIELD_TERMINATORS
|
||||
--error 1005
|
||||
# the following create statement sometimes fails like it would if NO_BACKSLASH_ESCAPES sql mode was on,
|
||||
# we check sql mode here
|
||||
select @@SESSION.sql_mode;
|
||||
select @@GLOBAL.sql_mode;
|
||||
|
||||
## ER_WRONG_FIELD_TERMINATORS
|
||||
#--error 1005
|
||||
create table t1(exhausting_charset enum('ABCDEFGHIJKLMNOPQRSTUVWXYZ','
|
||||
|
||||
!"','#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~','xx\','yy\€','zz亗儎厗噲墛媽崕彁憭摂晼棙櫄洔潪煚、￥ウЖ┆<D096><E29486><EFBFBD>辈炒刀犯购患骄坷谅媚牌侨墒颂臀闲岩釉罩棕仝圮蒉哙徕沅彐玷殛腱眍镳耱篝貊鼬<E8B28A><E9BCAC><EFBFBD><EFBFBD>'));
|
||||
|
||||
drop table t1;
|
||||
|
||||
--disable_query_log
|
||||
drop database pbxt;
|
||||
--enable_query_log
|
||||
|
|
|
|||
1
mysql-test/suite/pbxt/t/udf-master.opt
Normal file
1
mysql-test/suite/pbxt/t/udf-master.opt
Normal file
|
|
@ -0,0 +1 @@
|
|||
$UDF_EXAMPLE_LIB_OPT
|
||||
|
|
@ -802,6 +802,10 @@ drop tables t1,t2,t3;
|
|||
# exceeds mediumtext maximum length
|
||||
#
|
||||
|
||||
SELECT @tmp_max:= @@global.max_allowed_packet;
|
||||
SET @@global.max_allowed_packet=25000000;
|
||||
# switching connection to allow the new max_allowed_packet take effect
|
||||
--connect (newconn, localhost, root,,)
|
||||
CREATE TABLE t1 (a mediumtext);
|
||||
CREATE TABLE t2 (b varchar(20));
|
||||
INSERT INTO t1 VALUES ('a');
|
||||
|
|
@ -823,6 +827,9 @@ INSERT INTO t1 VALUES ('a');
|
|||
CREATE TABLE t3 SELECT REPEAT(a,2) AS a FROM t1 UNION SELECT b FROM t2;
|
||||
SHOW CREATE TABLE t3;
|
||||
DROP TABLES t1,t2,t3;
|
||||
--connection default
|
||||
SET @@global.max_allowed_packet:= @tmp_max;
|
||||
--disconnect newconn
|
||||
|
||||
#
|
||||
# Bug #10032 Bug in parsing UNION with ORDER BY when one node does not use FROM
|
||||
|
|
|
|||
|
|
@ -25,15 +25,19 @@ let $merge_table_support= 1;
|
|||
--echo # we get another @@optimizer_switch user)
|
||||
--echo #
|
||||
|
||||
--replace_regex /,table_elimination=on//
|
||||
select @@optimizer_switch;
|
||||
|
||||
set optimizer_switch='index_merge=off,index_merge_union=off';
|
||||
--replace_regex /,table_elimination=on//
|
||||
select @@optimizer_switch;
|
||||
|
||||
set optimizer_switch='index_merge_union=on';
|
||||
--replace_regex /,table_elimination=on//
|
||||
select @@optimizer_switch;
|
||||
|
||||
set optimizer_switch='default,index_merge_sort_union=off';
|
||||
--replace_regex /,table_elimination=on//
|
||||
select @@optimizer_switch;
|
||||
|
||||
--error ER_WRONG_VALUE_FOR_VAR
|
||||
|
|
@ -71,17 +75,21 @@ set optimizer_switch='default,index_merge=on,index_merge=off,default';
|
|||
|
||||
set optimizer_switch=default;
|
||||
set optimizer_switch='index_merge=off,index_merge_union=off,default';
|
||||
--replace_regex /,table_elimination=on//
|
||||
select @@optimizer_switch;
|
||||
set optimizer_switch=default;
|
||||
|
||||
# Check setting defaults for global vars
|
||||
--replace_regex /,table_elimination=on//
|
||||
select @@global.optimizer_switch;
|
||||
set @@global.optimizer_switch=default;
|
||||
--replace_regex /,table_elimination=on//
|
||||
select @@global.optimizer_switch;
|
||||
|
||||
--echo #
|
||||
--echo # Check index_merge's @@optimizer_switch flags
|
||||
--echo #
|
||||
--replace_regex /,table_elimination.on//
|
||||
select @@optimizer_switch;
|
||||
|
||||
create table t0 (a int);
|
||||
|
|
@ -182,6 +190,7 @@ set optimizer_switch='default,index_merge_union=off';
|
|||
explain select * from t1 where a=10 and b=10 or c=10;
|
||||
|
||||
set optimizer_switch=default;
|
||||
--replace_regex /,table_elimination.on//
|
||||
show variables like 'optimizer_switch';
|
||||
|
||||
drop table t0, t1;
|
||||
|
|
|
|||
42
mysql-test/t/log_slow.test
Normal file
42
mysql-test/t/log_slow.test
Normal file
|
|
@ -0,0 +1,42 @@
|
|||
#
|
||||
# Testing of slow log query options
|
||||
#
|
||||
|
||||
select @@log_slow_filter;
|
||||
select @@log_slow_rate_limit;
|
||||
select @@log_slow_verbosity;
|
||||
show variables like "log_slow%";
|
||||
|
||||
# Some simple test to set log_slow_filter
|
||||
set @@log_slow_filter= "filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk,admin";
|
||||
select @@log_slow_filter;
|
||||
set @@log_slow_filter="admin,admin";
|
||||
select @@log_slow_filter;
|
||||
set @@log_slow_filter=7;
|
||||
select @@log_slow_filter;
|
||||
|
||||
# Test of wrong values
|
||||
--error 1231
|
||||
set @@log_slow_filter= "filesort,impossible,impossible2,admin";
|
||||
--error 1231
|
||||
set @@log_slow_filter= "filesort, admin";
|
||||
--error 1231
|
||||
set @@log_slow_filter= 1<<31;
|
||||
select @@log_slow_filter;
|
||||
|
||||
# Some simple test to set log_slow_verbosity
|
||||
set @@log_slow_verbosity= "query_plan,innodb";
|
||||
select @@log_slow_verbosity;
|
||||
set @@log_slow_verbosity=1;
|
||||
select @@log_slow_verbosity;
|
||||
|
||||
#
|
||||
# Check which fields are in slow_log table
|
||||
#
|
||||
|
||||
show fields from mysql.slow_log;
|
||||
|
||||
# Reset used variables
|
||||
|
||||
set @@log_slow_filter=default;
|
||||
set @@log_slow_verbosity=default;
|
||||
|
|
@ -27,7 +27,8 @@ connect (con1, localhost, root,,);
|
|||
|
||||
CREATE TABLE t1(data LONGBLOB);
|
||||
INSERT INTO t1 SELECT REPEAT('1', 2*1024*1024);
|
||||
|
||||
# The following is to remove the race between end of insert and start of MYSQL_DUMP:
|
||||
SELECT COUNT(*) FROM t1;
|
||||
let $outfile= $MYSQLTEST_VARDIR/tmp/bug41486.sql;
|
||||
--error 0,1
|
||||
remove_file $outfile;
|
||||
|
|
|
|||
47
mysql-test/t/mysqld_option_err.test
Normal file
47
mysql-test/t/mysqld_option_err.test
Normal file
|
|
@ -0,0 +1,47 @@
|
|||
#
|
||||
# Test error checks on mysqld command line option parsing.
|
||||
#
|
||||
# Call mysqld with different invalid options, and check that it fails in each case.
|
||||
#
|
||||
# This means that a test failure results in mysqld starting up, which is only
|
||||
# caught when the test case times out. This is not ideal, but I did not find an
|
||||
# easy way to have the server shut down after a successful startup.
|
||||
#
|
||||
|
||||
--source include/not_embedded.inc
|
||||
|
||||
# We have not run (and do not need) bootstrap of the server. We just
|
||||
# give it a dummy data directory (for log files etc).
|
||||
|
||||
mkdir $MYSQLTEST_VARDIR/tmp/mysqld_option_err;
|
||||
|
||||
|
||||
--echo Test that unknown option is not silently ignored.
|
||||
--error 2
|
||||
--exec $MYSQLD --skip-networking --datadir=$MYSQLTEST_VARDIR/tmp/mysqld_option_err --skip-grant-tables --nonexistentoption >$MYSQLTEST_VARDIR/tmp/mysqld_option_err/mysqltest.log 2>&1
|
||||
|
||||
|
||||
--echo Test bad binlog format.
|
||||
--error 1
|
||||
--exec $MYSQLD --skip-networking --datadir=$MYSQLTEST_VARDIR/tmp/mysqld_option_err --skip-grant-tables --log-bin --binlog-format=badformat >>$MYSQLTEST_VARDIR/tmp/mysqld_option_err/mysqltest.log 2>&1
|
||||
|
||||
|
||||
--echo Test bad default storage engine.
|
||||
--error 1
|
||||
--exec $MYSQLD --skip-networking --datadir=$MYSQLTEST_VARDIR/tmp/mysqld_option_err --skip-grant-tables --default-storage-engine=nonexistentengine >>$MYSQLTEST_VARDIR/tmp/mysqld_option_err/mysqltest.log 2>&1
|
||||
|
||||
|
||||
--echo Test non-numeric value passed to number option.
|
||||
--error 1
|
||||
--exec $MYSQLD --skip-networking --datadir=$MYSQLTEST_VARDIR/tmp/mysqld_option_err --skip-grant-tables --min-examined-row-limit=notanumber >>$MYSQLTEST_VARDIR/tmp/mysqld_option_err/mysqltest.log 2>&1
|
||||
|
||||
|
||||
# Test for MBug#423035: error in parsing enum value for plugin
|
||||
# variable in mysqld command-line option.
|
||||
# See also Bug#32034.
|
||||
--echo Test that bad value for plugin enum option is rejected correctly.
|
||||
--error 7
|
||||
--exec $MYSQLD --skip-networking --datadir=$MYSQLTEST_VARDIR/tmp/mysqld_option_err --skip-grant-tables $EXAMPLE_PLUGIN_OPT --plugin-load=EXAMPLE=ha_example.so --plugin-example-enum-var=noexist >>$MYSQLTEST_VARDIR/tmp/mysqld_option_err/mysqltest.log 2>&1
|
||||
|
||||
|
||||
--echo Done.
|
||||
338
mysql-test/t/table_elim.test
Normal file
338
mysql-test/t/table_elim.test
Normal file
|
|
@ -0,0 +1,338 @@
|
|||
#
|
||||
# Table elimination (MWL#17) tests
|
||||
#
|
||||
--disable_warnings
|
||||
drop table if exists t0, t1, t2, t3;
|
||||
drop view if exists v1, v2;
|
||||
--enable_warnings
|
||||
|
||||
create table t1 (a int);
|
||||
insert into t1 values (0),(1),(2),(3);
|
||||
create table t0 as select * from t1;
|
||||
|
||||
create table t2 (a int primary key, b int)
|
||||
as select a, a as b from t1 where a in (1,2);
|
||||
|
||||
create table t3 (a int primary key, b int)
|
||||
as select a, a as b from t1 where a in (1,3);
|
||||
|
||||
--echo # This will be eliminated:
|
||||
explain select t1.a from t1 left join t2 on t2.a=t1.a;
|
||||
explain extended select t1.a from t1 left join t2 on t2.a=t1.a;
|
||||
|
||||
select t1.a from t1 left join t2 on t2.a=t1.a;
|
||||
|
||||
--echo # This will not be eliminated as t2.b is in in select list:
|
||||
explain select * from t1 left join t2 on t2.a=t1.a;
|
||||
|
||||
--echo # This will not be eliminated as t2.b is in in order list:
|
||||
explain select t1.a from t1 left join t2 on t2.a=t1.a order by t2.b;
|
||||
|
||||
--echo # This will not be eliminated as t2.b is in group list:
|
||||
explain select t1.a from t1 left join t2 on t2.a=t1.a group by t2.b;
|
||||
|
||||
--echo # This will not be eliminated as t2.b is in the WHERE
|
||||
explain select t1.a from t1 left join t2 on t2.a=t1.a where t2.b < 3 or t2.b is null;
|
||||
|
||||
--echo # Elimination of multiple tables:
|
||||
explain select t1.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a;
|
||||
|
||||
--echo # Elimination of multiple tables (2):
|
||||
explain select t1.a from t1 left join (t2 join t3 on t2.b=t3.b) on t2.a=t1.a and t3.a=t1.a;
|
||||
|
||||
--echo # Elimination when done within an outer join nest:
|
||||
explain extended
|
||||
select t0.*
|
||||
from
|
||||
t0 left join (t1 left join (t2 join t3 on t2.b=t3.b) on t2.a=t1.a and
|
||||
t3.a=t1.a) on t0.a=t1.a;
|
||||
|
||||
--echo # Elimination with aggregate functions
|
||||
explain select count(*) from t1 left join t2 on t2.a=t1.a;
|
||||
explain select count(1) from t1 left join t2 on t2.a=t1.a;
|
||||
explain select count(1) from t1 left join t2 on t2.a=t1.a group by t1.a;
|
||||
|
||||
--echo This must not use elimination:
|
||||
explain select count(1) from t1 left join t2 on t2.a=t1.a group by t2.a;
|
||||
|
||||
drop table t0, t1, t2, t3;
|
||||
|
||||
# This will stand for elim_facts
|
||||
create table t0 ( id integer, primary key (id));
|
||||
|
||||
# Attribute1, non-versioned
|
||||
create table t1 (
|
||||
id integer,
|
||||
attr1 integer,
|
||||
primary key (id),
|
||||
key (attr1)
|
||||
);
|
||||
|
||||
# Attribute2, time-versioned
|
||||
create table t2 (
|
||||
id integer,
|
||||
attr2 integer,
|
||||
fromdate date,
|
||||
primary key (id, fromdate),
|
||||
key (attr2,fromdate)
|
||||
);
|
||||
|
||||
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
||||
insert into t0 select A.id + 10*B.id from t0 A, t0 B where B.id > 0;
|
||||
|
||||
insert into t1 select id, id from t0;
|
||||
insert into t2 select id, id, date_add('2009-06-22', interval id day) from t0;
|
||||
insert into t2 select id, id+1, date_add('2008-06-22', interval id day) from t0;
|
||||
|
||||
create view v1 as
|
||||
select
|
||||
F.id, A1.attr1, A2.attr2
|
||||
from
|
||||
t0 F
|
||||
left join t1 A1 on A1.id=F.id
|
||||
left join t2 A2 on A2.id=F.id and
|
||||
A2.fromdate=(select MAX(fromdate) from
|
||||
t2 where id=A2.id);
|
||||
create view v2 as
|
||||
select
|
||||
F.id, A1.attr1, A2.attr2
|
||||
from
|
||||
t0 F
|
||||
left join t1 A1 on A1.id=F.id
|
||||
left join t2 A2 on A2.id=F.id and
|
||||
A2.fromdate=(select MAX(fromdate) from
|
||||
t2 where id=F.id);
|
||||
|
||||
--echo This should use one table:
|
||||
explain select id from v1 where id=2;
|
||||
--echo This should use one table:
|
||||
explain extended select id from v1 where id in (1,2,3,4);
|
||||
--echo This should use facts and A1 tables:
|
||||
explain extended select id from v1 where attr1 between 12 and 14;
|
||||
--echo This should use facts, A2 and its subquery:
|
||||
explain extended select id from v1 where attr2 between 12 and 14;
|
||||
|
||||
# Repeat for v2:
|
||||
|
||||
--echo This should use one table:
|
||||
explain select id from v2 where id=2;
|
||||
--echo This should use one table:
|
||||
explain extended select id from v2 where id in (1,2,3,4);
|
||||
--echo This should use facts and A1 tables:
|
||||
explain extended select id from v2 where attr1 between 12 and 14;
|
||||
--echo This should use facts, A2 and its subquery:
|
||||
explain extended select id from v2 where attr2 between 12 and 14;
|
||||
|
||||
drop view v1, v2;
|
||||
drop table t0, t1, t2;
|
||||
|
||||
#
|
||||
# Tests for the code that uses t.keypartX=func(t.keypartY) equalities to
|
||||
# make table elimination inferences
|
||||
#
|
||||
create table t1 (a int);
|
||||
insert into t1 values (0),(1),(2),(3);
|
||||
|
||||
create table t2 (pk1 int, pk2 int, pk3 int, col int, primary key(pk1, pk2, pk3));
|
||||
insert into t2 select a,a,a,a from t1;
|
||||
|
||||
--echo This must use only t1:
|
||||
explain select t1.* from t1 left join t2 on t2.pk1=t1.a and
|
||||
t2.pk2=t2.pk1+1 and
|
||||
t2.pk3=t2.pk2+1;
|
||||
|
||||
--echo This must use only t1:
|
||||
explain select t1.* from t1 left join t2 on t2.pk1=t1.a and
|
||||
t2.pk3=t2.pk1+1 and
|
||||
t2.pk2=t2.pk3+1;
|
||||
|
||||
--echo This must use both:
|
||||
explain select t1.* from t1 left join t2 on t2.pk1=t1.a and
|
||||
t2.pk3=t2.pk1+1 and
|
||||
t2.pk2=t2.pk3+t2.col;
|
||||
|
||||
--echo This must use only t1:
|
||||
explain select t1.* from t1 left join t2 on t2.pk2=t1.a and
|
||||
t2.pk1=t2.pk2+1 and
|
||||
t2.pk3=t2.pk1;
|
||||
|
||||
drop table t1, t2;
|
||||
#
|
||||
# Check that equality propagation is taken into account
|
||||
#
|
||||
create table t1 (pk int primary key, col int);
|
||||
insert into t1 values (1,1),(2,2);
|
||||
|
||||
create table t2 like t1;
|
||||
insert into t2 select * from t1;
|
||||
|
||||
create table t3 like t1;
|
||||
insert into t3 select * from t1;
|
||||
|
||||
explain
|
||||
select t1.* from t1 left join ( t2 left join t3 on t3.pk=t2.col) on t2.col=t1.col;
|
||||
|
||||
explain
|
||||
select t1.*, t2.* from t1 left join (t2 left join t3 on t3.pk=t2.col) on t2.pk=t1.col;
|
||||
|
||||
explain select t1.*
|
||||
from
|
||||
t1 left join ( t2 left join t3 on t3.pk=t2.col or t3.pk=t2.col)
|
||||
on t2.col=t1.col or t2.col=t1.col;
|
||||
|
||||
explain select t1.*, t2.*
|
||||
from
|
||||
t1 left join
|
||||
(t2 left join t3 on t3.pk=t2.col or t3.pk=t2.col)
|
||||
on t2.pk=t1.col or t2.pk=t1.col;
|
||||
|
||||
drop table t1, t2, t3;
|
||||
|
||||
--echo #
|
||||
--echo # Check things that look like functional dependencies but really are not
|
||||
--echo #
|
||||
|
||||
create table t1 (a char(10) character set latin1 collate latin1_general_ci primary key);
|
||||
insert into t1 values ('foo');
|
||||
insert into t1 values ('bar');
|
||||
|
||||
create table t2 (a char(10) character set latin1 collate latin1_general_cs primary key);
|
||||
insert into t2 values ('foo');
|
||||
insert into t2 values ('FOO');
|
||||
|
||||
-- echo this must not use table elimination:
|
||||
explain select t1.* from t1 left join t2 on t2.a='foo' collate latin1_general_ci;
|
||||
|
||||
-- echo this must not use table elimination:
|
||||
explain select t1.* from t1 left join t2 on t2.a=t1.a collate latin1_general_ci;
|
||||
drop table t1,t2;
|
||||
|
||||
create table t1 (a int primary key);
|
||||
insert into t1 values (1),(2);
|
||||
create table t2 (a char(10) primary key);
|
||||
insert into t2 values ('1'),('1.0');
|
||||
-- echo this must not use table elimination:
|
||||
explain select t1.* from t1 left join t2 on t2.a=1;
|
||||
-- echo this must not use table elimination:
|
||||
explain select t1.* from t1 left join t2 on t2.a=t1.a;
|
||||
|
||||
drop table t1, t2;
|
||||
# partial unique keys do not work at the moment, although they are able to
|
||||
# provide one-match guarantees:
|
||||
create table t1 (a char(10) primary key);
|
||||
insert into t1 values ('foo'),('bar');
|
||||
|
||||
create table t2 (a char(10), unique key(a(2)));
|
||||
insert into t2 values ('foo'),('bar');
|
||||
|
||||
explain select t1.* from t1 left join t2 on t2.a=t1.a;
|
||||
|
||||
drop table t1, t2;
|
||||
|
||||
--echo #
|
||||
--echo # check UPDATE/DELETE that look like they could be eliminated
|
||||
--echo #
|
||||
create table t1 (a int primary key, b int);
|
||||
insert into t1 values (1,1),(2,2),(3,3);
|
||||
|
||||
create table t2 like t1;
|
||||
insert into t2 select * from t1;
|
||||
update t1 left join t2 using (a) set t2.a=t2.a+100;
|
||||
select * from t1;
|
||||
select * from t2;
|
||||
|
||||
delete from t2;
|
||||
insert into t2 select * from t1;
|
||||
|
||||
delete t2 from t1 left join t2 using (a);
|
||||
select * from t1;
|
||||
select * from t2;
|
||||
drop table t1, t2;
|
||||
|
||||
--echo #
|
||||
--echo # Tests with various edge-case ON expressions
|
||||
--echo #
|
||||
create table t1 (a int, b int, c int, d int);
|
||||
insert into t1 values (0,0,0,0),(1,1,1,1),(2,2,2,2),(3,3,3,3);
|
||||
|
||||
create table t2 (pk int primary key, b int)
|
||||
as select a as pk, a as b from t1 where a in (1,2);
|
||||
|
||||
create table t3 (pk1 int, pk2 int, b int, unique(pk1,pk2));
|
||||
insert into t3 select a as pk1, a as pk2, a as b from t1 where a in (1,3);
|
||||
|
||||
explain select t1.a from t1 left join t2 on t2.pk=t1.a and t2.b<t1.b;
|
||||
explain select t1.a from t1 left join t2 on t2.pk=t1.a or t2.b<t1.b;
|
||||
explain select t1.a from t1 left join t2 on t2.b<t1.b or t2.pk=t1.a;
|
||||
|
||||
explain select t1.a from t1 left join t2 on t2.pk between 10 and 20;
|
||||
explain select t1.a from t1 left join t2 on t2.pk between 0.5 and 1.5;
|
||||
explain select t1.a from t1 left join t2 on t2.pk between 10 and 10;
|
||||
|
||||
explain select t1.a from t1 left join t2 on t2.pk in (10);
|
||||
explain select t1.a from t1 left join t2 on t2.pk in (t1.a);
|
||||
|
||||
explain select t1.a from t1 left join t2 on TRUE;
|
||||
|
||||
explain select t1.a from t1 left join t3 on t3.pk1=t1.a and t3.pk2 IS NULL;
|
||||
|
||||
drop table t1,t2,t3;
|
||||
|
||||
--echo #
|
||||
--echo # Multi-equality tests
|
||||
--echo #
|
||||
create table t1 (a int, b int, c int, d int);
|
||||
insert into t1 values (0,0,0,0),(1,1,1,1),(2,2,2,2),(3,3,3,3);
|
||||
|
||||
create table t2 (pk int primary key, b int, c int);
|
||||
insert into t2 select a,a,a from t1 where a in (1,2);
|
||||
|
||||
explain
|
||||
select t1.*
|
||||
from t1 left join t2 on t2.pk=t2.c and t2.b=t1.a and t1.a=t1.b and t2.c=t2.b
|
||||
where t1.d=1;
|
||||
|
||||
explain
|
||||
select t1.*
|
||||
from
|
||||
t1
|
||||
left join
|
||||
t2
|
||||
on (t2.pk=t2.c and t2.b=t1.a and t1.a=t1.b and t2.c=t2.b) or
|
||||
(t2.pk=t2.c and t2.b=t1.a and t1.a=t1.b and t2.c=t2.b)
|
||||
where t1.d=1;
|
||||
|
||||
--echo #This can't be eliminated:
|
||||
explain
|
||||
select t1.*
|
||||
from
|
||||
t1
|
||||
left join
|
||||
t2
|
||||
on (t2.pk=t2.c and t2.b=t1.a and t2.c=t1.b) or
|
||||
(t2.pk=t2.c and t1.a=t1.b and t2.c=t1.b)
|
||||
where t1.d=1;
|
||||
|
||||
explain
|
||||
select t1.*
|
||||
from
|
||||
t1
|
||||
left join
|
||||
t2
|
||||
on (t2.pk=t2.c and t2.b=t1.a and t2.c=t1.b) or
|
||||
(t2.pk=t2.c and t2.c=t1.b)
|
||||
;
|
||||
|
||||
explain
|
||||
select t1.*
|
||||
from t1 left join t2 on t2.pk=3 or t2.pk= 4;
|
||||
|
||||
explain
|
||||
select t1.*
|
||||
from t1 left join t2 on t2.pk=3 or t2.pk= 3;
|
||||
|
||||
explain
|
||||
select t1.*
|
||||
from t1 left join t2 on (t2.pk=3 and t2.b=3) or (t2.pk= 4 and t2.b=3);
|
||||
|
||||
drop table t1, t2;
|
||||
|
|
@ -704,6 +704,75 @@
|
|||
fun:inet_ntoa
|
||||
}
|
||||
|
||||
|
||||
#
|
||||
# Some problem inside glibc on Ubuntu 9.04, x86 (but not amd64):
|
||||
#
|
||||
# ==5985== 19 bytes in 1 blocks are still reachable in loss record 1 of 6
|
||||
# ==5985== at 0x7AF3FDE: malloc (vg_replace_malloc.c:207)
|
||||
# ... 11,12, or 13 functions w/o symbols ...
|
||||
# ==5985== by 0x8717185: nptl_pthread_exit_hack_handler (my_thr_init.c:55)
|
||||
#
|
||||
# Since valgrind 3.3.0 doesn't support '...' multi-function pattern, using
|
||||
# multiple suppressions:
|
||||
#
|
||||
{
|
||||
Mem loss inside nptl_pthread_exit_hack_handler
|
||||
Memcheck:Leak
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:nptl_pthread_exit_hack_handler
|
||||
}
|
||||
|
||||
{
|
||||
Mem loss inside nptl_pthread_exit_hack_handler
|
||||
Memcheck:Leak
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:nptl_pthread_exit_hack_handler
|
||||
}
|
||||
|
||||
{
|
||||
Mem loss inside nptl_pthread_exit_hack_handler
|
||||
Memcheck:Leak
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:*
|
||||
fun:nptl_pthread_exit_hack_handler
|
||||
}
|
||||
|
||||
#
|
||||
# BUG#45630
|
||||
# Suppress valgrind failures within nptl_pthread_exit_hack_handler on Ubuntu 9.04, x86 (but not amd64)
|
||||
|
|
|
|||
|
|
@ -81,12 +81,13 @@ my_bool my_compress(uchar *packet, size_t *len, size_t *complen)
|
|||
This fix is safe, since such memory is only used internally by zlib, so we
|
||||
will not hide any bugs in mysql this way.
|
||||
*/
|
||||
void *my_az_allocator(void *dummy, unsigned int items, unsigned int size)
|
||||
void *my_az_allocator(void *dummy __attribute__((unused)), unsigned int items,
|
||||
unsigned int size)
|
||||
{
|
||||
return my_malloc((size_t)items*(size_t)size, IF_VALGRIND(MY_ZEROFILL, MYF(0)));
|
||||
}
|
||||
|
||||
void my_az_free(void *dummy, void *address)
|
||||
void my_az_free(void *dummy __attribute__((unused)), void *address)
|
||||
{
|
||||
my_free(address, MYF(MY_ALLOW_ZERO_PTR));
|
||||
}
|
||||
|
|
|
|||
|
|
@ -611,6 +611,7 @@ static int setval(const struct my_option *opts, uchar* *value, char *argument,
|
|||
my_bool set_maximum_value)
|
||||
{
|
||||
int err= 0;
|
||||
int pos;
|
||||
|
||||
if (value && argument)
|
||||
{
|
||||
|
|
|
|||
316
sql-bench/test-table-elimination.sh
Executable file
316
sql-bench/test-table-elimination.sh
Executable file
|
|
@ -0,0 +1,316 @@
|
|||
#!@PERL@
|
||||
# Test of table elimination feature
|
||||
|
||||
use Cwd;
|
||||
use DBI;
|
||||
use Getopt::Long;
|
||||
use Benchmark;
|
||||
|
||||
$opt_loop_count=100000;
|
||||
$opt_medium_loop_count=10000;
|
||||
$opt_small_loop_count=100;
|
||||
|
||||
$pwd = cwd(); $pwd = "." if ($pwd eq '');
|
||||
require "$pwd/bench-init.pl" || die "Can't read Configuration file: $!\n";
|
||||
|
||||
if ($opt_small_test)
|
||||
{
|
||||
$opt_loop_count/=10;
|
||||
$opt_medium_loop_count/=10;
|
||||
$opt_small_loop_count/=10;
|
||||
}
|
||||
|
||||
print "Testing table elimination feature\n";
|
||||
print "The test table has $opt_loop_count rows.\n\n";
|
||||
|
||||
# A query to get the recent versions of all attributes:
|
||||
$select_current_full_facts="
|
||||
select
|
||||
F.id, A1.attr1, A2.attr2
|
||||
from
|
||||
elim_facts F
|
||||
left join elim_attr1 A1 on A1.id=F.id
|
||||
left join elim_attr2 A2 on A2.id=F.id and
|
||||
A2.fromdate=(select MAX(fromdate) from
|
||||
elim_attr2 where id=A2.id);
|
||||
";
|
||||
$select_current_full_facts="
|
||||
select
|
||||
F.id, A1.attr1, A2.attr2
|
||||
from
|
||||
elim_facts F
|
||||
left join elim_attr1 A1 on A1.id=F.id
|
||||
left join elim_attr2 A2 on A2.id=F.id and
|
||||
A2.fromdate=(select MAX(fromdate) from
|
||||
elim_attr2 where id=F.id);
|
||||
";
|
||||
# TODO: same as above but for some given date also?
|
||||
# TODO:
|
||||
|
||||
|
||||
####
|
||||
#### Connect and start timeing
|
||||
####
|
||||
|
||||
$dbh = $server->connect();
|
||||
$start_time=new Benchmark;
|
||||
|
||||
####
|
||||
#### Create needed tables
|
||||
####
|
||||
|
||||
goto select_test if ($opt_skip_create);
|
||||
|
||||
print "Creating tables\n";
|
||||
$dbh->do("drop table elim_facts" . $server->{'drop_attr'});
|
||||
$dbh->do("drop table elim_attr1" . $server->{'drop_attr'});
|
||||
$dbh->do("drop table elim_attr2" . $server->{'drop_attr'});
|
||||
|
||||
# The facts table
|
||||
do_many($dbh,$server->create("elim_facts",
|
||||
["id integer"],
|
||||
["primary key (id)"]));
|
||||
|
||||
# Attribute1, non-versioned
|
||||
do_many($dbh,$server->create("elim_attr1",
|
||||
["id integer",
|
||||
"attr1 integer"],
|
||||
["primary key (id)",
|
||||
"key (attr1)"]));
|
||||
|
||||
# Attribute2, time-versioned
|
||||
do_many($dbh,$server->create("elim_attr2",
|
||||
["id integer",
|
||||
"attr2 integer",
|
||||
"fromdate date"],
|
||||
["primary key (id, fromdate)",
|
||||
"key (attr2,fromdate)"]));
|
||||
|
||||
#NOTE: ignoring: if ($limits->{'views'})
|
||||
$dbh->do("drop view elim_current_facts");
|
||||
$dbh->do("create view elim_current_facts as $select_current_full_facts");
|
||||
|
||||
if ($opt_lock_tables)
|
||||
{
|
||||
do_query($dbh,"LOCK TABLES elim_facts, elim_attr1, elim_attr2 WRITE");
|
||||
}
|
||||
|
||||
if ($opt_fast && defined($server->{vacuum}))
|
||||
{
|
||||
$server->vacuum(1,\$dbh);
|
||||
}
|
||||
|
||||
####
|
||||
#### Fill the facts table
|
||||
####
|
||||
$n_facts= $opt_loop_count;
|
||||
|
||||
if ($opt_fast && $server->{transactions})
|
||||
{
|
||||
$dbh->{AutoCommit} = 0;
|
||||
}
|
||||
|
||||
print "Inserting $n_facts rows into facts table\n";
|
||||
$loop_time=new Benchmark;
|
||||
|
||||
$query="insert into elim_facts values (";
|
||||
for ($id=0; $id < $n_facts ; $id++)
|
||||
{
|
||||
do_query($dbh,"$query $id)");
|
||||
}
|
||||
|
||||
if ($opt_fast && $server->{transactions})
|
||||
{
|
||||
$dbh->commit;
|
||||
$dbh->{AutoCommit} = 1;
|
||||
}
|
||||
|
||||
$end_time=new Benchmark;
|
||||
print "Time to insert ($n_facts): " .
|
||||
timestr(timediff($end_time, $loop_time),"all") . "\n\n";
|
||||
|
||||
####
|
||||
#### Fill attr1 table
|
||||
####
|
||||
if ($opt_fast && $server->{transactions})
|
||||
{
|
||||
$dbh->{AutoCommit} = 0;
|
||||
}
|
||||
|
||||
print "Inserting $n_facts rows into attr1 table\n";
|
||||
$loop_time=new Benchmark;
|
||||
|
||||
$query="insert into elim_attr1 values (";
|
||||
for ($id=0; $id < $n_facts ; $id++)
|
||||
{
|
||||
$attr1= ceil(rand($n_facts));
|
||||
do_query($dbh,"$query $id, $attr1)");
|
||||
}
|
||||
|
||||
if ($opt_fast && $server->{transactions})
|
||||
{
|
||||
$dbh->commit;
|
||||
$dbh->{AutoCommit} = 1;
|
||||
}
|
||||
|
||||
$end_time=new Benchmark;
|
||||
print "Time to insert ($n_facts): " .
|
||||
timestr(timediff($end_time, $loop_time),"all") . "\n\n";
|
||||
|
||||
####
|
||||
#### Fill attr2 table
|
||||
####
|
||||
if ($opt_fast && $server->{transactions})
|
||||
{
|
||||
$dbh->{AutoCommit} = 0;
|
||||
}
|
||||
|
||||
print "Inserting $n_facts rows into attr2 table\n";
|
||||
$loop_time=new Benchmark;
|
||||
|
||||
for ($id=0; $id < $n_facts ; $id++)
|
||||
{
|
||||
# Two values for each $id - current one and obsolete one.
|
||||
$attr1= ceil(rand($n_facts));
|
||||
$query="insert into elim_attr2 values ($id, $attr1, now())";
|
||||
do_query($dbh,$query);
|
||||
$query="insert into elim_attr2 values ($id, $attr1, '2009-01-01')";
|
||||
do_query($dbh,$query);
|
||||
}
|
||||
|
||||
if ($opt_fast && $server->{transactions})
|
||||
{
|
||||
$dbh->commit;
|
||||
$dbh->{AutoCommit} = 1;
|
||||
}
|
||||
|
||||
$end_time=new Benchmark;
|
||||
print "Time to insert ($n_facts): " .
|
||||
timestr(timediff($end_time, $loop_time),"all") . "\n\n";
|
||||
|
||||
####
|
||||
#### Finalize the database population
|
||||
####
|
||||
|
||||
if ($opt_lock_tables)
|
||||
{
|
||||
do_query($dbh,"UNLOCK TABLES");
|
||||
}
|
||||
|
||||
if ($opt_fast && defined($server->{vacuum}))
|
||||
{
|
||||
$server->vacuum(0,\$dbh,["elim_facts", "elim_attr1", "elim_attr2"]);
|
||||
}
|
||||
|
||||
if ($opt_lock_tables)
|
||||
{
|
||||
do_query($dbh,"LOCK TABLES elim_facts, elim_attr1, elim_attr2 WRITE");
|
||||
}
|
||||
|
||||
####
|
||||
#### Do some selects on the table
|
||||
####
|
||||
|
||||
select_test:
|
||||
|
||||
#
|
||||
# The selects will be:
|
||||
# - N pk-lookups with all attributes
|
||||
# - pk-attribute-based lookup
|
||||
# - latest-attribute value based lookup.
|
||||
|
||||
|
||||
###
|
||||
### Bare facts select:
|
||||
###
|
||||
print "testing bare facts facts table\n";
|
||||
$loop_time=new Benchmark;
|
||||
$rows=0;
|
||||
for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
|
||||
{
|
||||
$val= ceil(rand($n_facts));
|
||||
$rows+=fetch_all_rows($dbh,"select * from elim_facts where id=$val");
|
||||
}
|
||||
$count=$i;
|
||||
|
||||
$end_time=new Benchmark;
|
||||
print "time for select_bare_facts ($count:$rows): " .
|
||||
timestr(timediff($end_time, $loop_time),"all") . "\n";
|
||||
|
||||
|
||||
###
|
||||
### Full facts select, no elimination:
|
||||
###
|
||||
print "testing full facts facts table\n";
|
||||
$loop_time=new Benchmark;
|
||||
$rows=0;
|
||||
for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
|
||||
{
|
||||
$val= rand($n_facts);
|
||||
$rows+=fetch_all_rows($dbh,"select * from elim_current_facts where id=$val");
|
||||
}
|
||||
$count=$i;
|
||||
|
||||
$end_time=new Benchmark;
|
||||
print "time for select_two_attributes ($count:$rows): " .
|
||||
timestr(timediff($end_time, $loop_time),"all") . "\n";
|
||||
|
||||
###
|
||||
### Now with elimination: select only only one fact
|
||||
###
|
||||
print "testing selection of one attribute\n";
|
||||
$loop_time=new Benchmark;
|
||||
$rows=0;
|
||||
for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
|
||||
{
|
||||
$val= rand($n_facts);
|
||||
$rows+=fetch_all_rows($dbh,"select id, attr1 from elim_current_facts where id=$val");
|
||||
}
|
||||
$count=$i;
|
||||
|
||||
$end_time=new Benchmark;
|
||||
print "time for select_one_attribute ($count:$rows): " .
|
||||
timestr(timediff($end_time, $loop_time),"all") . "\n";
|
||||
|
||||
###
|
||||
### Now with elimination: select only only one fact
|
||||
###
|
||||
print "testing selection of one attribute\n";
|
||||
$loop_time=new Benchmark;
|
||||
$rows=0;
|
||||
for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
|
||||
{
|
||||
$val= rand($n_facts);
|
||||
$rows+=fetch_all_rows($dbh,"select id, attr2 from elim_current_facts where id=$val");
|
||||
}
|
||||
$count=$i;
|
||||
|
||||
$end_time=new Benchmark;
|
||||
print "time for select_one_attribute ($count:$rows): " .
|
||||
timestr(timediff($end_time, $loop_time),"all") . "\n";
|
||||
|
||||
|
||||
;
|
||||
|
||||
####
|
||||
#### End of benchmark
|
||||
####
|
||||
|
||||
if ($opt_lock_tables)
|
||||
{
|
||||
do_query($dbh,"UNLOCK TABLES");
|
||||
}
|
||||
if (!$opt_skip_delete)
|
||||
{
|
||||
do_query($dbh,"drop table elim_facts, elim_attr1, elim_attr2" . $server->{'drop_attr'});
|
||||
}
|
||||
|
||||
if ($opt_fast && defined($server->{vacuum}))
|
||||
{
|
||||
$server->vacuum(0,\$dbh);
|
||||
}
|
||||
|
||||
$dbh->disconnect; # close connection
|
||||
|
||||
end_benchmark($start_time);
|
||||
|
||||
|
|
@ -75,7 +75,7 @@ SET (SQL_SOURCE
|
|||
partition_info.cc rpl_utility.cc rpl_injector.cc sql_locale.cc
|
||||
rpl_rli.cc rpl_mi.cc sql_servers.cc
|
||||
sql_connect.cc scheduler.cc
|
||||
sql_profile.cc event_parse_data.cc
|
||||
sql_profile.cc event_parse_data.cc opt_table_elimination.cc
|
||||
${PROJECT_SOURCE_DIR}/sql/sql_yacc.cc
|
||||
${PROJECT_SOURCE_DIR}/sql/sql_yacc.h
|
||||
${PROJECT_SOURCE_DIR}/include/mysqld_error.h
|
||||
|
|
@ -129,7 +129,7 @@ ADD_CUSTOM_COMMAND(
|
|||
|
||||
# Gen_lex_hash
|
||||
ADD_EXECUTABLE(gen_lex_hash gen_lex_hash.cc)
|
||||
TARGET_LINK_LIBRARIES(gen_lex_hash debug dbug mysqlclient wsock32)
|
||||
TARGET_LINK_LIBRARIES(gen_lex_hash debug dbug mysqlclient strings wsock32)
|
||||
GET_TARGET_PROPERTY(GEN_LEX_HASH_EXE gen_lex_hash LOCATION)
|
||||
ADD_CUSTOM_COMMAND(
|
||||
OUTPUT ${PROJECT_SOURCE_DIR}/sql/lex_hash.h
|
||||
|
|
|
|||
|
|
@ -61,7 +61,7 @@ noinst_HEADERS = item.h item_func.h item_sum.h item_cmpfunc.h \
|
|||
ha_partition.h rpl_constants.h \
|
||||
opt_range.h protocol.h rpl_tblmap.h rpl_utility.h \
|
||||
rpl_reporting.h \
|
||||
log.h sql_show.h rpl_rli.h rpl_mi.h \
|
||||
log.h log_slow.h sql_show.h rpl_rli.h rpl_mi.h \
|
||||
sql_select.h structs.h table.h sql_udf.h hash_filo.h \
|
||||
lex.h lex_symbol.h sql_acl.h sql_crypt.h \
|
||||
sql_repl.h slave.h rpl_filter.h rpl_injector.h \
|
||||
|
|
@ -121,7 +121,8 @@ mysqld_SOURCES = sql_lex.cc sql_handler.cc sql_partition.cc \
|
|||
event_queue.cc event_db_repository.cc events.cc \
|
||||
sql_plugin.cc sql_binlog.cc \
|
||||
sql_builtin.cc sql_tablespace.cc partition_info.cc \
|
||||
sql_servers.cc event_parse_data.cc
|
||||
sql_servers.cc event_parse_data.cc \
|
||||
opt_table_elimination.cc
|
||||
|
||||
nodist_mysqld_SOURCES = mini_client_errors.c pack.c client.c my_time.c my_user.c
|
||||
|
||||
|
|
|
|||
|
|
@ -1450,8 +1450,7 @@ Event_job_data::execute(THD *thd, bool drop)
|
|||
|
||||
DBUG_ASSERT(sphead);
|
||||
|
||||
if (thd->enable_slow_log)
|
||||
sphead->m_flags|= sp_head::LOG_SLOW_STATEMENTS;
|
||||
sphead->m_flags|= sp_head::LOG_SLOW_STATEMENTS;
|
||||
sphead->m_flags|= sp_head::LOG_GENERAL_LOG;
|
||||
|
||||
sphead->set_info(0, 0, &thd->lex->sp_chistics, sql_mode);
|
||||
|
|
|
|||
|
|
@ -697,8 +697,7 @@ send_show_create_event(THD *thd, Event_timed *et, Protocol *protocol)
|
|||
|
||||
field_list.push_back(new Item_empty_string("Event", NAME_CHAR_LEN));
|
||||
|
||||
if (sys_var_thd_sql_mode::symbolic_mode_representation(thd, et->sql_mode,
|
||||
&sql_mode))
|
||||
if (sys_var::make_set(thd, et->sql_mode, &sql_mode_typelib, &sql_mode))
|
||||
DBUG_RETURN(TRUE);
|
||||
|
||||
field_list.push_back(new Item_empty_string("sql_mode", (uint) sql_mode.length));
|
||||
|
|
|
|||
|
|
@ -188,6 +188,7 @@ ha_rows filesort(THD *thd, TABLE *table, SORT_FIELD *sortorder, uint s_length,
|
|||
{
|
||||
status_var_increment(thd->status_var.filesort_scan_count);
|
||||
}
|
||||
thd->query_plan_flags|= QPLAN_FILESORT;
|
||||
#ifdef CAN_TRUST_RANGE
|
||||
if (select && select->quick && select->quick->records > 0L)
|
||||
{
|
||||
|
|
@ -253,6 +254,7 @@ ha_rows filesort(THD *thd, TABLE *table, SORT_FIELD *sortorder, uint s_length,
|
|||
}
|
||||
else
|
||||
{
|
||||
thd->query_plan_flags|= QPLAN_FILESORT_DISK;
|
||||
if (table_sort.buffpek && table_sort.buffpek_len < maxbuffer)
|
||||
{
|
||||
x_free(table_sort.buffpek);
|
||||
|
|
@ -1199,6 +1201,7 @@ int merge_buffers(SORTPARAM *param, IO_CACHE *from_file,
|
|||
DBUG_ENTER("merge_buffers");
|
||||
|
||||
status_var_increment(current_thd->status_var.filesort_merge_passes);
|
||||
current_thd->query_plan_fsort_passes++;
|
||||
if (param->not_killable)
|
||||
{
|
||||
killed= ¬_killable;
|
||||
|
|
|
|||
11
sql/item.cc
11
sql/item.cc
|
|
@ -1922,6 +1922,15 @@ void Item_field::reset_field(Field *f)
|
|||
name= (char*) f->field_name;
|
||||
}
|
||||
|
||||
|
||||
bool Item_field::enumerate_field_refs_processor(uchar *arg)
|
||||
{
|
||||
Field_enumerator *fe= (Field_enumerator*)arg;
|
||||
fe->visit_field(field);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
||||
const char *Item_ident::full_name() const
|
||||
{
|
||||
char *tmp;
|
||||
|
|
@ -3599,7 +3608,7 @@ static void mark_as_dependent(THD *thd, SELECT_LEX *last, SELECT_LEX *current,
|
|||
/* store pointer on SELECT_LEX from which item is dependent */
|
||||
if (mark_item)
|
||||
mark_item->depended_from= last;
|
||||
current->mark_as_dependent(last);
|
||||
current->mark_as_dependent(last, resolved_item);
|
||||
if (thd->lex->describe & DESCRIBE_EXTENDED)
|
||||
{
|
||||
push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_NOTE,
|
||||
|
|
|
|||
36
sql/item.h
36
sql/item.h
|
|
@ -731,7 +731,11 @@ public:
|
|||
virtual bool val_bool_result() { return val_bool(); }
|
||||
virtual bool is_null_result() { return is_null(); }
|
||||
|
||||
/* bit map of tables used by item */
|
||||
/*
|
||||
Bitmap of tables used by item
|
||||
(note: if you need to check dependencies on individual columns, check out
|
||||
class Field_enumerator)
|
||||
*/
|
||||
virtual table_map used_tables() const { return (table_map) 0L; }
|
||||
/*
|
||||
Return table map of tables that can't be NULL tables (tables that are
|
||||
|
|
@ -888,6 +892,8 @@ public:
|
|||
virtual bool reset_query_id_processor(uchar *query_id_arg) { return 0; }
|
||||
virtual bool is_expensive_processor(uchar *arg) { return 0; }
|
||||
virtual bool register_field_in_read_map(uchar *arg) { return 0; }
|
||||
virtual bool enumerate_field_refs_processor(uchar *arg) { return 0; }
|
||||
virtual bool mark_as_eliminated_processor(uchar *arg) { return 0; }
|
||||
/*
|
||||
Check if a partition function is allowed
|
||||
SYNOPSIS
|
||||
|
|
@ -1012,6 +1018,29 @@ public:
|
|||
};
|
||||
|
||||
|
||||
/*
|
||||
Class to be used to enumerate all field references in an item tree.
|
||||
Suggested usage:
|
||||
|
||||
class My_enumerator : public Field_enumerator
|
||||
{
|
||||
virtual void visit_field() { ... your actions ...}
|
||||
}
|
||||
|
||||
My_enumerator enumerator;
|
||||
item->walk(Item::enumerate_field_refs_processor, ...,(uchar*)&enumerator);
|
||||
|
||||
This is similar to Visitor pattern.
|
||||
*/
|
||||
|
||||
class Field_enumerator
|
||||
{
|
||||
public:
|
||||
virtual void visit_field(Field *field)= 0;
|
||||
virtual ~Field_enumerator() {}; /* purecov: inspected */
|
||||
};
|
||||
|
||||
|
||||
class sp_head;
|
||||
|
||||
|
||||
|
|
@ -1477,6 +1506,7 @@ public:
|
|||
bool find_item_in_field_list_processor(uchar *arg);
|
||||
bool register_field_in_read_map(uchar *arg);
|
||||
bool check_partition_func_processor(uchar *int_arg) {return FALSE;}
|
||||
bool enumerate_field_refs_processor(uchar *arg);
|
||||
void cleanup();
|
||||
bool result_as_longlong()
|
||||
{
|
||||
|
|
@ -2203,6 +2233,10 @@ public:
|
|||
if (!depended_from)
|
||||
(*ref)->update_used_tables();
|
||||
}
|
||||
bool const_item() const
|
||||
{
|
||||
return (*ref)->const_item();
|
||||
}
|
||||
table_map not_null_tables() const { return (*ref)->not_null_tables(); }
|
||||
void set_result_field(Field *field) { result_field= field; }
|
||||
bool is_result_field() { return 1; }
|
||||
|
|
|
|||
|
|
@ -5168,33 +5168,7 @@ void Item_equal::merge(Item_equal *item)
|
|||
|
||||
void Item_equal::sort(Item_field_cmpfunc cmp, void *arg)
|
||||
{
|
||||
bool swap;
|
||||
List_iterator<Item_field> it(fields);
|
||||
do
|
||||
{
|
||||
Item_field *item1= it++;
|
||||
Item_field **ref1= it.ref();
|
||||
Item_field *item2;
|
||||
|
||||
swap= FALSE;
|
||||
while ((item2= it++))
|
||||
{
|
||||
Item_field **ref2= it.ref();
|
||||
if (cmp(item1, item2, arg) < 0)
|
||||
{
|
||||
Item_field *item= *ref1;
|
||||
*ref1= *ref2;
|
||||
*ref2= item;
|
||||
swap= TRUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
item1= item2;
|
||||
ref1= ref2;
|
||||
}
|
||||
}
|
||||
it.rewind();
|
||||
} while (swap);
|
||||
exchange_sort<Item_field>(&fields, cmp, arg);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -1578,6 +1578,7 @@ public:
|
|||
uint members();
|
||||
bool contains(Field *field);
|
||||
Item_field* get_first() { return fields.head(); }
|
||||
uint n_fields() { return fields.elements; }
|
||||
void merge(Item_equal *item);
|
||||
void update_const();
|
||||
enum Functype functype() const { return MULT_EQUAL_FUNC; }
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@ inline Item * and_items(Item* cond, Item *item)
|
|||
Item_subselect::Item_subselect():
|
||||
Item_result_field(), value_assigned(0), thd(0), substitution(0),
|
||||
engine(0), old_engine(0), used_tables_cache(0), have_to_be_excluded(0),
|
||||
const_item_cache(1), engine_changed(0), changed(0), is_correlated(FALSE)
|
||||
const_item_cache(1), in_fix_fields(0), engine_changed(0), changed(0), is_correlated(FALSE)
|
||||
{
|
||||
with_subselect= 1;
|
||||
reset();
|
||||
|
|
@ -151,10 +151,14 @@ bool Item_subselect::fix_fields(THD *thd_param, Item **ref)
|
|||
|
||||
DBUG_ASSERT(fixed == 0);
|
||||
engine->set_thd((thd= thd_param));
|
||||
if (!in_fix_fields)
|
||||
refers_to.empty();
|
||||
eliminated= FALSE;
|
||||
|
||||
if (check_stack_overrun(thd, STACK_MIN_SIZE, (uchar*)&res))
|
||||
return TRUE;
|
||||
|
||||
in_fix_fields++;
|
||||
res= engine->prepare();
|
||||
|
||||
// all transformation is done (used by prepared statements)
|
||||
|
|
@ -181,12 +185,14 @@ bool Item_subselect::fix_fields(THD *thd_param, Item **ref)
|
|||
if (!(*ref)->fixed)
|
||||
ret= (*ref)->fix_fields(thd, ref);
|
||||
thd->where= save_where;
|
||||
in_fix_fields--;
|
||||
return ret;
|
||||
}
|
||||
// Is it one field subselect?
|
||||
if (engine->cols() > max_columns)
|
||||
{
|
||||
my_error(ER_OPERAND_COLUMNS, MYF(0), 1);
|
||||
in_fix_fields--;
|
||||
return TRUE;
|
||||
}
|
||||
fix_length_and_dec();
|
||||
|
|
@ -203,11 +209,30 @@ bool Item_subselect::fix_fields(THD *thd_param, Item **ref)
|
|||
fixed= 1;
|
||||
|
||||
err:
|
||||
in_fix_fields--;
|
||||
thd->where= save_where;
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
bool Item_subselect::enumerate_field_refs_processor(uchar *arg)
|
||||
{
|
||||
List_iterator<Item> it(refers_to);
|
||||
Item *item;
|
||||
while ((item= it++))
|
||||
{
|
||||
if (item->walk(&Item::enumerate_field_refs_processor, FALSE, arg))
|
||||
return TRUE;
|
||||
}
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
bool Item_subselect::mark_as_eliminated_processor(uchar *arg)
|
||||
{
|
||||
eliminated= TRUE;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
bool Item_subselect::walk(Item_processor processor, bool walk_subquery,
|
||||
uchar *argument)
|
||||
{
|
||||
|
|
@ -225,6 +250,7 @@ bool Item_subselect::walk(Item_processor processor, bool walk_subquery,
|
|||
if (lex->having && (lex->having)->walk(processor, walk_subquery,
|
||||
argument))
|
||||
return 1;
|
||||
/* TODO: why does this walk WHERE/HAVING but not ON expressions of outer joins? */
|
||||
|
||||
while ((item=li++))
|
||||
{
|
||||
|
|
|
|||
|
|
@ -54,6 +54,14 @@ protected:
|
|||
bool const_item_cache;
|
||||
|
||||
public:
|
||||
/*
|
||||
References from inside the subquery to the select that this predicate is
|
||||
in. References to parent selects not included.
|
||||
*/
|
||||
List<Item> refers_to;
|
||||
int in_fix_fields;
|
||||
bool eliminated;
|
||||
|
||||
/* changed engine indicator */
|
||||
bool engine_changed;
|
||||
/* subquery is transformed */
|
||||
|
|
@ -126,6 +134,8 @@ public:
|
|||
virtual void reset_value_registration() {}
|
||||
enum_parsing_place place() { return parsing_place; }
|
||||
bool walk(Item_processor processor, bool walk_subquery, uchar *arg);
|
||||
bool mark_as_eliminated_processor(uchar *arg);
|
||||
bool enumerate_field_refs_processor(uchar *arg);
|
||||
|
||||
/**
|
||||
Get the SELECT_LEX structure associated with this Item.
|
||||
|
|
|
|||
|
|
@ -350,7 +350,7 @@ bool Item_sum::register_sum_func(THD *thd, Item **ref)
|
|||
sl= sl->master_unit()->outer_select() )
|
||||
sl->master_unit()->item->with_sum_func= 1;
|
||||
}
|
||||
thd->lex->current_select->mark_as_dependent(aggr_sel);
|
||||
thd->lex->current_select->mark_as_dependent(aggr_sel, NULL);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
|
@ -542,11 +542,6 @@ void Item_sum::update_used_tables ()
|
|||
args[i]->update_used_tables();
|
||||
used_tables_cache|= args[i]->used_tables();
|
||||
}
|
||||
|
||||
used_tables_cache&= PSEUDO_TABLE_BITS;
|
||||
|
||||
/* the aggregate function is aggregated into its local context */
|
||||
used_tables_cache |= (1 << aggr_sel->join->tables) - 1;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -255,6 +255,12 @@ protected:
|
|||
*/
|
||||
Item **orig_args, *tmp_orig_args[2];
|
||||
table_map used_tables_cache;
|
||||
|
||||
/*
|
||||
TRUE <=> We've managed to calculate the value of this Item in
|
||||
opt_sum_query(), hence it can be considered constant at all subsequent
|
||||
steps.
|
||||
*/
|
||||
bool forced_const;
|
||||
|
||||
public:
|
||||
|
|
@ -341,6 +347,15 @@ public:
|
|||
virtual const char *func_name() const= 0;
|
||||
virtual Item *result_item(Field *field)
|
||||
{ return new Item_field(field); }
|
||||
/*
|
||||
Return bitmap of tables that are needed to evaluate the item.
|
||||
|
||||
The implementation takes into account the used strategy: items resolved
|
||||
at optimization phase will report 0.
|
||||
Items that depend on the number of join output records, but not columns
|
||||
of any particular table (like COUNT(*)) will report 0 from used_tables(),
|
||||
but will still return false from const_item().
|
||||
*/
|
||||
table_map used_tables() const { return used_tables_cache; }
|
||||
void update_used_tables ();
|
||||
void cleanup()
|
||||
|
|
|
|||
41
sql/log.cc
41
sql/log.cc
|
|
@ -983,7 +983,7 @@ bool LOGGER::slow_log_print(THD *thd, const char *query, uint query_length,
|
|||
/* fill in user_host value: the format is "%s[%s] @ %s [%s]" */
|
||||
user_host_len= (strxnmov(user_host_buff, MAX_USER_HOST_SIZE,
|
||||
sctx->priv_user ? sctx->priv_user : "", "[",
|
||||
sctx->user ? sctx->user : "", "] @ ",
|
||||
sctx->user ? sctx->user : (thd->slave_thread ? "SQL_SLAVE" : ""), "] @ ",
|
||||
sctx->host ? sctx->host : "", " [",
|
||||
sctx->ip ? sctx->ip : "", "]", NullS) -
|
||||
user_host_buff);
|
||||
|
|
@ -1006,6 +1006,17 @@ bool LOGGER::slow_log_print(THD *thd, const char *query, uint query_length,
|
|||
query_length= command_name[thd->command].length;
|
||||
}
|
||||
|
||||
if (!query_length)
|
||||
{
|
||||
/*
|
||||
Not a real query; Reset counts for slow query logging
|
||||
(QQ: Wonder if this is really needed)
|
||||
*/
|
||||
thd->sent_row_count= thd->examined_row_count= 0;
|
||||
thd->query_plan_flags= QPLAN_INIT;
|
||||
thd->query_plan_fsort_passes= 0;
|
||||
}
|
||||
|
||||
for (current_handler= slow_log_handler_list; *current_handler ;)
|
||||
error= (*current_handler++)->log_slow(thd, current_time, thd->start_time,
|
||||
user_host_buff, user_host_len,
|
||||
|
|
@ -2295,19 +2306,39 @@ bool MYSQL_QUERY_LOG::write(THD *thd, time_t current_time,
|
|||
if (my_b_write(&log_file, (uchar*) "\n", 1))
|
||||
tmp_errno= errno;
|
||||
}
|
||||
|
||||
/* For slow query log */
|
||||
sprintf(query_time_buff, "%.6f", ulonglong2double(query_utime)/1000000.0);
|
||||
sprintf(lock_time_buff, "%.6f", ulonglong2double(lock_utime)/1000000.0);
|
||||
if (my_b_printf(&log_file,
|
||||
"# Query_time: %s Lock_time: %s"
|
||||
" Rows_sent: %lu Rows_examined: %lu\n",
|
||||
"# Thread_id: %lu Schema: %s QC_hit: %s\n" \
|
||||
"# Query_time: %s Lock_time: %s Rows_sent: %lu Rows_examined: %lu\n",
|
||||
(ulong) thd->thread_id, (thd->db ? thd->db : ""),
|
||||
((thd->query_plan_flags & QPLAN_QC) ? "Yes" : "No"),
|
||||
query_time_buff, lock_time_buff,
|
||||
(ulong) thd->sent_row_count,
|
||||
(ulong) thd->examined_row_count) == (uint) -1)
|
||||
(ulong) thd->examined_row_count) == (size_t) -1)
|
||||
tmp_errno= errno;
|
||||
if ((thd->variables.log_slow_verbosity & LOG_SLOW_VERBOSITY_QUERY_PLAN) &&
|
||||
(thd->query_plan_flags &
|
||||
(QPLAN_FULL_SCAN | QPLAN_FULL_JOIN | QPLAN_TMP_TABLE |
|
||||
QPLAN_TMP_DISK | QPLAN_FILESORT | QPLAN_FILESORT_DISK)) &&
|
||||
my_b_printf(&log_file,
|
||||
"# Full_scan: %s Full_join: %s "
|
||||
"Tmp_table: %s Tmp_table_on_disk: %s\n"
|
||||
"# Filesort: %s Filesort_on_disk: %s Merge_passes: %lu\n",
|
||||
((thd->query_plan_flags & QPLAN_FULL_SCAN) ? "Yes" : "No"),
|
||||
((thd->query_plan_flags & QPLAN_FULL_JOIN) ? "Yes" : "No"),
|
||||
((thd->query_plan_flags & QPLAN_TMP_TABLE) ? "Yes" : "No"),
|
||||
((thd->query_plan_flags & QPLAN_TMP_DISK) ? "Yes" : "No"),
|
||||
((thd->query_plan_flags & QPLAN_FILESORT) ? "Yes" : "No"),
|
||||
((thd->query_plan_flags & QPLAN_FILESORT_DISK) ?
|
||||
"Yes" : "No"),
|
||||
thd->query_plan_fsort_passes) == (size_t) -1)
|
||||
tmp_errno= errno;
|
||||
if (thd->db && strcmp(thd->db, db))
|
||||
{ // Database changed
|
||||
if (my_b_printf(&log_file,"use %s;\n",thd->db) == (uint) -1)
|
||||
if (my_b_printf(&log_file,"use %s;\n",thd->db) == (size_t) -1)
|
||||
tmp_errno= errno;
|
||||
strmov(db,thd->db);
|
||||
}
|
||||
|
|
|
|||
107
sql/log_slow.h
Normal file
107
sql/log_slow.h
Normal file
|
|
@ -0,0 +1,107 @@
|
|||
/* Copyright (C) 2009 Monty Program Ab
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; version 2 or later of the License.
|
||||
|
||||
This program 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 General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
||||
|
||||
/* Defining what to log to slow log */
|
||||
|
||||
#define LOG_SLOW_VERBOSITY_INIT 0
|
||||
#define LOG_SLOW_VERBOSITY_INNODB 1 << 0
|
||||
#define LOG_SLOW_VERBOSITY_QUERY_PLAN 1 << 1
|
||||
|
||||
#ifdef DEFINE_VARIABLES_LOG_SLOW
|
||||
|
||||
/* Names here must be in same order as the bit's above */
|
||||
static const char *log_slow_verbosity_names[]=
|
||||
{
|
||||
"innodb","query_plan",
|
||||
NullS
|
||||
};
|
||||
|
||||
static const unsigned int log_slow_verbosity_names_len[]=
|
||||
{
|
||||
sizeof("innodb") -1,
|
||||
sizeof("query_plan")-1
|
||||
};
|
||||
|
||||
TYPELIB log_slow_verbosity_typelib=
|
||||
{ array_elements(log_slow_verbosity_names)-1,"", log_slow_verbosity_names,
|
||||
(unsigned int *) log_slow_verbosity_names_len };
|
||||
|
||||
#else
|
||||
extern TYPELIB log_slow_verbosity_typelib;
|
||||
#endif /* DEFINE_VARIABLES_LOG_SLOW */
|
||||
|
||||
/* Defines for what kind of query plan was used and what to log */
|
||||
|
||||
/*
|
||||
We init the used query plan with a bit that is alwyas set and all 'no' bits
|
||||
to enable easy testing of what to log in sql_log.cc
|
||||
*/
|
||||
#define QPLAN_INIT (QPLAN_ALWAYS_SET | QPLAN_QC_NO)
|
||||
|
||||
#define QPLAN_ADMIN 1 << 0
|
||||
#define QPLAN_FILESORT 1 << 1
|
||||
#define QPLAN_FILESORT_DISK 1 << 2
|
||||
#define QPLAN_FULL_JOIN 1 << 3
|
||||
#define QPLAN_FULL_SCAN 1 << 4
|
||||
#define QPLAN_QC 1 << 5
|
||||
#define QPLAN_QC_NO 1 << 6
|
||||
#define QPLAN_TMP_DISK 1 << 7
|
||||
#define QPLAN_TMP_TABLE 1 << 8
|
||||
/* ... */
|
||||
#define QPLAN_MAX ((ulong) 1) << 31 /* reserved as placeholder */
|
||||
#define QPLAN_ALWAYS_SET QPLAN_MAX
|
||||
#define QPLAN_VISIBLE_MASK (~(QPLAN_ALWAYS_SET))
|
||||
|
||||
#ifdef DEFINE_VARIABLES_LOG_SLOW
|
||||
/* Names here must be in same order as the bit's above */
|
||||
static const char *log_slow_filter_names[]=
|
||||
{
|
||||
"admin",
|
||||
"filesort",
|
||||
"filesort_on_disk",
|
||||
"full_join",
|
||||
"full_scan",
|
||||
"query_cache",
|
||||
"query_cache_miss",
|
||||
"tmp_table",
|
||||
"tmp_table_on_disk",
|
||||
NullS
|
||||
};
|
||||
|
||||
static const unsigned int log_slow_filter_names_len[]=
|
||||
{
|
||||
sizeof("admin")-1,
|
||||
sizeof("filesort")-1,
|
||||
sizeof("filesort_on_disk")-1,
|
||||
sizeof("full_join")-1,
|
||||
sizeof("full_scan")-1,
|
||||
sizeof("query_cache")-1,
|
||||
sizeof("query_cache_miss")-1,
|
||||
sizeof("tmp_table")-1,
|
||||
sizeof("tmp_table_on_disk")-1
|
||||
};
|
||||
|
||||
TYPELIB log_slow_filter_typelib=
|
||||
{ array_elements(log_slow_filter_names)-1,"", log_slow_filter_names,
|
||||
(unsigned int *) log_slow_filter_names_len };
|
||||
|
||||
#else
|
||||
extern TYPELIB log_slow_filter_typelib;
|
||||
#endif /* DEFINE_VARIABLES_LOG_SLOW */
|
||||
|
||||
static inline ulong fix_log_slow_filter(ulong org_filter)
|
||||
{
|
||||
return org_filter ? org_filter : QPLAN_ALWAYS_SET;
|
||||
}
|
||||
|
|
@ -43,6 +43,7 @@
|
|||
#include "sql_array.h"
|
||||
#include "sql_plugin.h"
|
||||
#include "scheduler.h"
|
||||
#include "log_slow.h"
|
||||
|
||||
class Parser_state;
|
||||
|
||||
|
|
@ -535,14 +536,27 @@ protected:
|
|||
#define OPTIMIZER_SWITCH_INDEX_MERGE_UNION 2
|
||||
#define OPTIMIZER_SWITCH_INDEX_MERGE_SORT_UNION 4
|
||||
#define OPTIMIZER_SWITCH_INDEX_MERGE_INTERSECT 8
|
||||
#define OPTIMIZER_SWITCH_LAST 16
|
||||
|
||||
#ifdef DBUG_OFF
|
||||
# define OPTIMIZER_SWITCH_LAST 16
|
||||
#else
|
||||
# define OPTIMIZER_SWITCH_TABLE_ELIMINATION 16
|
||||
# define OPTIMIZER_SWITCH_LAST 32
|
||||
#endif
|
||||
|
||||
#ifdef DBUG_OFF
|
||||
/* The following must be kept in sync with optimizer_switch_str in mysqld.cc */
|
||||
#define OPTIMIZER_SWITCH_DEFAULT (OPTIMIZER_SWITCH_INDEX_MERGE | \
|
||||
OPTIMIZER_SWITCH_INDEX_MERGE_UNION | \
|
||||
OPTIMIZER_SWITCH_INDEX_MERGE_SORT_UNION | \
|
||||
OPTIMIZER_SWITCH_INDEX_MERGE_INTERSECT)
|
||||
|
||||
# define OPTIMIZER_SWITCH_DEFAULT (OPTIMIZER_SWITCH_INDEX_MERGE | \
|
||||
OPTIMIZER_SWITCH_INDEX_MERGE_UNION | \
|
||||
OPTIMIZER_SWITCH_INDEX_MERGE_SORT_UNION | \
|
||||
OPTIMIZER_SWITCH_INDEX_MERGE_INTERSECT)
|
||||
#else
|
||||
# define OPTIMIZER_SWITCH_DEFAULT (OPTIMIZER_SWITCH_INDEX_MERGE | \
|
||||
OPTIMIZER_SWITCH_INDEX_MERGE_UNION | \
|
||||
OPTIMIZER_SWITCH_INDEX_MERGE_SORT_UNION | \
|
||||
OPTIMIZER_SWITCH_INDEX_MERGE_INTERSECT | \
|
||||
OPTIMIZER_SWITCH_TABLE_ELIMINATION)
|
||||
#endif
|
||||
|
||||
/*
|
||||
Replication uses 8 bytes to store SQL_MODE in the binary log. The day you
|
||||
|
|
|
|||
|
|
@ -13,6 +13,7 @@
|
|||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
||||
|
||||
#define DEFINE_VARIABLES_LOG_SLOW // Declare variables in log_slow.h
|
||||
#include "mysql_priv.h"
|
||||
#include <m_ctype.h>
|
||||
#include <my_dir.h>
|
||||
|
|
@ -298,8 +299,13 @@ TYPELIB sql_mode_typelib= { array_elements(sql_mode_names)-1,"",
|
|||
static const char *optimizer_switch_names[]=
|
||||
{
|
||||
"index_merge","index_merge_union","index_merge_sort_union",
|
||||
"index_merge_intersection", "default", NullS
|
||||
"index_merge_intersection",
|
||||
#ifndef DBUG_OFF
|
||||
"table_elimination",
|
||||
#endif
|
||||
"default", NullS
|
||||
};
|
||||
|
||||
/* Corresponding defines are named OPTIMIZER_SWITCH_XXX */
|
||||
static const unsigned int optimizer_switch_names_len[]=
|
||||
{
|
||||
|
|
@ -307,6 +313,9 @@ static const unsigned int optimizer_switch_names_len[]=
|
|||
sizeof("index_merge_union") - 1,
|
||||
sizeof("index_merge_sort_union") - 1,
|
||||
sizeof("index_merge_intersection") - 1,
|
||||
#ifndef DBUG_OFF
|
||||
sizeof("table_elimination") - 1,
|
||||
#endif
|
||||
sizeof("default") - 1
|
||||
};
|
||||
TYPELIB optimizer_switch_typelib= { array_elements(optimizer_switch_names)-1,"",
|
||||
|
|
@ -382,7 +391,12 @@ static const char *sql_mode_str= "OFF";
|
|||
/* Text representation for OPTIMIZER_SWITCH_DEFAULT */
|
||||
static const char *optimizer_switch_str="index_merge=on,index_merge_union=on,"
|
||||
"index_merge_sort_union=on,"
|
||||
"index_merge_intersection=on";
|
||||
"index_merge_intersection=on"
|
||||
#ifndef DBUG_OFF
|
||||
",table_elimination=on";
|
||||
#else
|
||||
;
|
||||
#endif
|
||||
static char *mysqld_user, *mysqld_chroot, *log_error_file_ptr;
|
||||
static char *opt_init_slave, *language_ptr, *opt_init_connect;
|
||||
static char *default_character_set_name;
|
||||
|
|
@ -1020,6 +1034,7 @@ static void close_connections(void)
|
|||
}
|
||||
|
||||
|
||||
#ifdef HAVE_CLOSE_SERVER_SOCK
|
||||
static void close_socket(my_socket sock, const char *info)
|
||||
{
|
||||
DBUG_ENTER("close_socket");
|
||||
|
|
@ -1039,6 +1054,7 @@ static void close_socket(my_socket sock, const char *info)
|
|||
}
|
||||
DBUG_VOID_RETURN;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
static void close_server_sock()
|
||||
|
|
@ -5793,6 +5809,9 @@ enum options_mysqld
|
|||
OPT_DEADLOCK_SEARCH_DEPTH_LONG,
|
||||
OPT_DEADLOCK_TIMEOUT_SHORT,
|
||||
OPT_DEADLOCK_TIMEOUT_LONG,
|
||||
OPT_LOG_SLOW_RATE_LIMIT,
|
||||
OPT_LOG_SLOW_VERBOSITY,
|
||||
OPT_LOG_SLOW_FILTER,
|
||||
OPT_GENERAL_LOG_FILE,
|
||||
OPT_SLOW_QUERY_LOG_FILE,
|
||||
OPT_IGNORE_BUILTIN_INNODB
|
||||
|
|
@ -6135,7 +6154,7 @@ Disable with --skip-large-pages.",
|
|||
(uchar**) &opt_log_slave_updates, (uchar**) &opt_log_slave_updates, 0, GET_BOOL,
|
||||
NO_ARG, 0, 0, 0, 0, 0, 0},
|
||||
{"log-slow-admin-statements", OPT_LOG_SLOW_ADMIN_STATEMENTS,
|
||||
"Log slow OPTIMIZE, ANALYZE, ALTER and other administrative statements to the slow log if it is open.",
|
||||
"Log slow OPTIMIZE, ANALYZE, ALTER and other administrative statements to the slow log if it is open. . Please note that this option is deprecated; see --log-slow-filter for filtering slow query log output",
|
||||
(uchar**) &opt_log_slow_admin_statements,
|
||||
(uchar**) &opt_log_slow_admin_statements,
|
||||
0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
|
||||
|
|
@ -6144,15 +6163,15 @@ Disable with --skip-large-pages.",
|
|||
(uchar**) &opt_log_slow_slave_statements,
|
||||
(uchar**) &opt_log_slow_slave_statements,
|
||||
0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
|
||||
{"log_slow_queries", OPT_SLOW_QUERY_LOG,
|
||||
{"log-slow-queries", OPT_SLOW_QUERY_LOG,
|
||||
"Log slow queries to a table or log file. Defaults logging to table "
|
||||
"mysql.slow_log or hostname-slow.log if --log-output=file is used. "
|
||||
"Must be enabled to activate other slow log options. "
|
||||
"(deprecated option, use --slow_query_log/--slow_query_log_file instead)",
|
||||
(uchar**) &opt_slow_logname, (uchar**) &opt_slow_logname, 0, GET_STR, OPT_ARG,
|
||||
0, 0, 0, 0, 0, 0},
|
||||
{"slow_query_log_file", OPT_SLOW_QUERY_LOG_FILE,
|
||||
"Log slow queries to given log file. Defaults logging to hostname-slow.log. Must be enabled to activate other slow log options.",
|
||||
{"slow-query-log-file", OPT_SLOW_QUERY_LOG_FILE,
|
||||
"Log slow queries to given log file. Defaults logging to hostname-slow.log.",
|
||||
(uchar**) &opt_slow_logname, (uchar**) &opt_slow_logname, 0, GET_STR,
|
||||
REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
|
||||
{"log-tc", OPT_LOG_TC,
|
||||
|
|
@ -6772,11 +6791,31 @@ log and this option does nothing anymore.",
|
|||
(uchar**) 0,
|
||||
0, (GET_ULONG | GET_ASK_ADDR) , REQUIRED_ARG, 100,
|
||||
1, 100, 0, 1, 0},
|
||||
{"log-slow-filter", OPT_LOG_SLOW_FILTER,
|
||||
"Log only the queries that followed certain execution plan. Multiple flags allowed in a comma-separated string. [admin, filesort, filesort_on_disk, full_join, full_scan, query_cache, query_cache_miss, tmp_table, tmp_table_on_disk]. Sets log-slow-admin-command to ON",
|
||||
0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, QPLAN_ALWAYS_SET, 0, 0},
|
||||
{"log-slow-rate_limit", OPT_LOG_SLOW_RATE_LIMIT,
|
||||
"If set, only write to slow log every 'log_slow_rate_limit' query (use this to reduce output on slow query log)",
|
||||
(uchar**) &global_system_variables.log_slow_rate_limit,
|
||||
(uchar**) &max_system_variables.log_slow_rate_limit, 0, GET_ULONG,
|
||||
REQUIRED_ARG, 1, 1, ~0L, 0, 1L, 0},
|
||||
{"log-slow-verbosity", OPT_LOG_SLOW_VERBOSITY,
|
||||
"Choose how verbose the messages to your slow log will be. Multiple flags allowed in a comma-separated string. [query_plan, innodb]",
|
||||
0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
|
||||
{"log-slow-file", OPT_SLOW_QUERY_LOG_FILE,
|
||||
"Log slow queries to given log file. Defaults logging to hostname-slow.log",
|
||||
(uchar**) &opt_slow_logname, (uchar**) &opt_slow_logname, 0, GET_STR,
|
||||
REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
|
||||
{"long_query_time", OPT_LONG_QUERY_TIME,
|
||||
"Log all queries that have taken more than long_query_time seconds to execute to file. "
|
||||
"The argument will be treated as a decimal value with microsecond precission.",
|
||||
(uchar**) &long_query_time, (uchar**) &long_query_time, 0, GET_DOUBLE,
|
||||
REQUIRED_ARG, 10, 0, LONG_TIMEOUT, 0, 0, 0},
|
||||
{"log-slow-time", OPT_LONG_QUERY_TIME,
|
||||
"Log all queries that have taken more than long_query_time seconds to execute to file. "
|
||||
"The argument will be treated as a decimal value with microsecond precission.",
|
||||
(uchar**) &long_query_time, (uchar**) &long_query_time, 0, GET_DOUBLE,
|
||||
REQUIRED_ARG, 10, 0, LONG_TIMEOUT, 0, 0, 0},
|
||||
{"lower_case_table_names", OPT_LOWER_CASE_TABLE_NAMES,
|
||||
"If set to 1 table names are stored in lowercase on disk and table names will be case-insensitive. Should be set to 2 if you are using a case insensitive file system",
|
||||
(uchar**) &lower_case_table_names,
|
||||
|
|
@ -6963,8 +7002,11 @@ The minimum value for this variable is 4096.",
|
|||
0, GET_ULONG, OPT_ARG, MAX_TABLES+1, 0, MAX_TABLES+2, 0, 1, 0},
|
||||
{"optimizer_switch", OPT_OPTIMIZER_SWITCH,
|
||||
"optimizer_switch=option=val[,option=val...], where option={index_merge, "
|
||||
"index_merge_union, index_merge_sort_union, index_merge_intersection} and "
|
||||
"val={on, off, default}.",
|
||||
"index_merge_union, index_merge_sort_union, index_merge_intersection"
|
||||
#ifndef DBUG_OFF
|
||||
", table_elimination"
|
||||
#endif
|
||||
"} and val={on, off, default}.",
|
||||
(uchar**) &optimizer_switch_str, (uchar**) &optimizer_switch_str, 0, GET_STR, REQUIRED_ARG,
|
||||
/*OPTIMIZER_SWITCH_DEFAULT*/0,
|
||||
0, 0, 0, 0, 0},
|
||||
|
|
@ -7877,6 +7919,9 @@ static int mysql_init_variables(void)
|
|||
global_system_variables.old_passwords= 0;
|
||||
global_system_variables.old_alter_table= 0;
|
||||
global_system_variables.binlog_format= BINLOG_FORMAT_UNSPEC;
|
||||
global_system_variables.log_slow_verbosity= LOG_SLOW_VERBOSITY_INIT;
|
||||
global_system_variables.log_slow_filter= QPLAN_ALWAYS_SET;
|
||||
|
||||
/*
|
||||
Default behavior for 4.1 and 5.0 is to treat NULL values as unequal
|
||||
when collecting index statistics for MyISAM tables.
|
||||
|
|
@ -8231,7 +8276,7 @@ mysqld_get_one_option(int optid,
|
|||
}
|
||||
#endif /* HAVE_REPLICATION */
|
||||
case (int) OPT_SLOW_QUERY_LOG:
|
||||
WARN_DEPRECATED(NULL, "7.0", "--log_slow_queries", "'--slow_query_log'/'--slow_query_log_file'");
|
||||
WARN_DEPRECATED(NULL, "7.0", "--log_slow_queries", "'--slow_query_log'/'--log-slow-file'");
|
||||
opt_slow_log= 1;
|
||||
break;
|
||||
#ifdef WITH_CSV_STORAGE_ENGINE
|
||||
|
|
@ -8384,6 +8429,25 @@ mysqld_get_one_option(int optid,
|
|||
case OPT_BOOTSTRAP:
|
||||
opt_noacl=opt_bootstrap=1;
|
||||
break;
|
||||
case OPT_LOG_SLOW_FILTER:
|
||||
global_system_variables.log_slow_filter=
|
||||
find_bit_type_or_exit(argument, &log_slow_verbosity_typelib,
|
||||
opt->name, &error);
|
||||
/*
|
||||
If we are using filters, we set opt_slow_admin_statements to be always
|
||||
true so we can maintain everything with filters
|
||||
*/
|
||||
opt_log_slow_admin_statements= 1;
|
||||
if (error)
|
||||
return 1;
|
||||
break;
|
||||
case OPT_LOG_SLOW_VERBOSITY:
|
||||
global_system_variables.log_slow_verbosity=
|
||||
find_bit_type_or_exit(argument, &log_slow_filter_typelib,
|
||||
opt->name, &error);
|
||||
if (error)
|
||||
return 1;
|
||||
break;
|
||||
case OPT_SERVER_ID:
|
||||
server_id_supplied = 1;
|
||||
break;
|
||||
|
|
@ -8692,6 +8756,8 @@ static int get_options(int *argc,char **argv)
|
|||
/* Set global slave_exec_mode from its option */
|
||||
fix_slave_exec_mode(OPT_GLOBAL);
|
||||
|
||||
global_system_variables.log_slow_filter=
|
||||
fix_log_slow_filter(global_system_variables.log_slow_filter);
|
||||
#ifndef EMBEDDED_LIBRARY
|
||||
if (mysqld_chroot)
|
||||
set_root(mysqld_chroot);
|
||||
|
|
|
|||
|
|
@ -38,6 +38,12 @@ typedef struct st_key_part {
|
|||
} KEY_PART;
|
||||
|
||||
|
||||
/*
|
||||
A "MIN_TUPLE < tbl.key_tuple < MAX_TUPLE" interval.
|
||||
|
||||
One of endpoints may be absent. 'flags' member has flags which tell whether
|
||||
the endpoints are '<' or '<='.
|
||||
*/
|
||||
class QUICK_RANGE :public Sql_alloc {
|
||||
public:
|
||||
uchar *min_key,*max_key;
|
||||
|
|
|
|||
1853
sql/opt_table_elimination.cc
Normal file
1853
sql/opt_table_elimination.cc
Normal file
File diff suppressed because it is too large
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Add table
Add a link
Reference in a new issue