this key does not stop" (5.1 version).
UPDATE statement which WHERE clause used key and which invoked trigger
that modified field in this key worked indefinetely.
This problem occured because in cases when UPDATE statement was
executed in update-on-the-fly mode (in which row is updated right
during evaluation of select for WHERE clause) the new version of
the row became visible to select representing WHERE clause and was
updated again and again.
We already solve this problem for UPDATE statements which does not
invoke triggers by detecting the fact that we are going to update
field in key used for scanning and performing update in two steps,
during the first step we gather information about the rows to be
updated and then doing actual updates. We also do this for
MULTI-UPDATE and in its case we even detect situation when such
fields are updated in triggers (actually we simply assume that
we always update fields used in key if we have before update
trigger).
The fix simply extends this check which is done with help of
check_if_key_used()/QUICK_SELECT_I::check_if_keys_used()
routine/method in such way that it also detects cases when
field used in key is updated in trigger. We do this by
changing check_if_key_used() to take field bitmap instead
field list as argument and passing TABLE::write_set
to it (we also have to add info about fields used in
triggers to this bitmap a bit earlier).
As nice side-effect we have more precise and thus more optimal
perfomance-wise check for the MULTI-UPDATE.
Also check_if_key_used() routine and similar method were renamed
to is_key_used()/is_keys_used() in order to better reflect that
it is simple boolean predicate.
Finally, partition_key_modified() routine now also takes field
bitmap instead of field list as argument.
In practice this means that handlerton is now created by the server and is passed to the engine. Plugin startups can now also control how plugins are inited (and can optionally pass values). Bit more flexibility to those who want to write plugin interfaces to the database.
include/mysql/plugin.h:
Optional to pass parameter now to init and deinit functions
sql/ha_ndbcluster.cc:
Cleanup, handlerton is now a pointer.
sql/ha_ndbcluster_binlog.cc:
Cleanup (handlerton is now a pointer)
sql/ha_ndbcluster_binlog.h:
Cleanup (handlerton is now a pointer)
sql/ha_partition.cc:
Cleaned up handlerton change
sql/handler.cc:
Cheanup of handlerton change
sql/item_sum.cc:
Cleanedup of handlerton change
sql/log.cc:
Cleanup of handlerton change
sql/mysql_priv.h:
Reverted patch for variables (what would have happen previously if a have_ would have been called that was dynamically loaded? boom!)
sql/mysqld.cc:
Cleanup of handlerton changes and reverted have variable patch
sql/partition_info.cc:
Cleanup of handlerton (we need to clean this up a bit more).
sql/set_var.cc:
Cleanup related to handlerton changes
sql/sql_cache.cc:
Handlerton changes cleanup
sql/sql_insert.cc:
Handlerton changes cleanup.
sql/sql_partition.cc:
Handlerton cleanup changes
sql/sql_plugin.cc:
Handlerton changes.
init() can now be controlled by a plugin specific startup.
There was also an issue with how we deinited the status variables. It should have been occuring before we shut down the engines.
sql/sql_select.cc:
Handlerton cleanup changes
sql/sql_show.cc:
Handlerton cleanup changes
sql/sql_table.cc:
Handlerton cleanup changes
sql/table.cc:
Cleanup
storage/archive/ha_archive.cc:
Cleanup
storage/archive/ha_archive.h:
Cleanup
storage/blackhole/ha_blackhole.cc:
Cleanup
storage/csv/ha_tina.cc:
Cleanup
storage/example/ha_example.cc:
Cleanup
storage/federated/ha_federated.cc:
Cleanup
storage/heap/ha_heap.cc:
Cleanup
storage/innobase/handler/ha_innodb.cc:
Cleanup
storage/myisam/ha_myisam.cc:
Cleanup
storage/myisammrg/ha_myisammrg.cc:
Cleanup
In practice this means that handlerton is now created by the server and is passed to the engine. Plugin startups can now also control how plugins are inited (and can optionally pass values). Bit more flexibility to those who want to write plugin interfaces to the database.
into dator5.(none):/home/pappa/bug18198
sql/item_func.h:
Auto merged
sql/item_strfunc.h:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
into dator5.(none):/home/pappa/bug21388
sql/ha_partition.cc:
Auto merged
sql/ha_partition.h:
Auto merged
sql/item.cc:
Auto merged
sql/share/errmsg.txt:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/table.cc:
Auto merged
storage/ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
Auto merged
We need to use an arena to indicate we are preparing a statement when loading partition function and
parsing it as part of an open table.
mysql-test/r/partition.result:
Moved test case
mysql-test/t/partition.test:
Moved test case
sql/item.cc:
Shouldn't call change_item_tree in prepare statement phase even if arena was already activated
sql/sql_partition.cc:
We need to use an arena to indicate we are preparing a statement when loading partition function and
parsing it as part of an open table.
sql/table.cc:
We need to use an arena to indicate we are preparing a statement when loading partition function and
parsing it as part of an open table.
into example.com:/work/mysql-5.1-runtime
sql/item.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_trigger.cc:
Auto merged
sql/sql_view.cc:
Auto merged
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/handler.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/item.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/mysql_priv.h:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_acl.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_error.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_error.h:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_lex.h:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_parse.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_partition.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_plugin.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_show.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_trigger.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/sql_view.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
sql/tztime.cc:
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
There is an existing macros for initializing LEX_STRINGs
with constant strings -> C_STRING_WITH_LEN. Change existing code to use it.
(char *) STRING_WITH_LEN -> C_STRING_WITH_LEN
into govinda.patg.net:/home/patg/mysql-build/mysql-5.1-engines-merge
sql/ha_myisam.cc:
Auto merged
sql/ha_myisammrg.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_delete.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_trigger.cc:
Auto merged
sql/sql_view.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/table.cc:
Auto merged
storage/innobase/row/row0mysql.c:
Auto merged
Rewrote if-statement a bit shorter
Added check for subpartitions in REORGANIZE partitions to be of same number as
in base table.
mysql-test/r/partition_mgm.result:
New test case
mysql-test/t/partition_mgm.test:
New test case
sql/ha_partition.cc:
Fixed stuff I should done long ago (monty comments)
sql/sql_partition.cc:
Rewrote if-statement a bit shorter
Added check for subpartitions in REORGANIZE partitions to be of same number as
in base table.
Caused by missing check for end of partitions in prune range check
mysql-test/r/partition.result:
Added test case for duplicate bug#21388
mysql-test/r/partition_range.result:
Added new test case for bug#21339
mysql-test/t/partition.test:
Added test case for duplicate bug#21388
mysql-test/t/partition_range.test:
Added new test case for bug#21339
sql/sql_partition.cc:
Check so that we don't set outer range to be larger than max_partition
into chilla.local:/home/mydev/mysql-5.1-bug18775
sql/ha_myisam.cc:
Auto merged
sql/ha_myisammrg.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_delete.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_trigger.cc:
Auto merged
sql/sql_view.cc:
Auto merged
sql/table.cc:
Auto merged
sql/sql_db.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Manual merge
Continued implementation of WL#1324 (table name to filename encoding)
The intermediate (not temporary) files of the new table
during ALTER TABLE was visible for SHOW TABLES. These
intermediate files are copies of the original table with
the changes done by ALTER TABLE. After all the data is
copied over from the original table, these files are renamed
to the original tables file names. So they are not temporary
files. They persist after ALTER TABLE, but just with another
name.
In 5.0 the intermediate files are invisible for SHOW TABLES
because all file names beginning with "#sql" were suppressed.
This failed since 5.1.6 because even temporary table names were
converted when making file names from them. The prefix became
converted to "@0023sql". Converting the prefix during SHOW TABLES
would suppress the listing of user tables that start with "#sql".
The solution of the problem is to continue the implementation of
the table name to file name conversion feature. One requirement
is to suppress the conversion for temporary table names.
This change is straightforward for real temporary tables as there
is a function that creates temporary file names.
But the generated path names are located in TMPDIR and have no
relation to the internal table name. This cannot be used for
ALTER TABLE. Its intermediate files need to be in the same
directory as the old table files. And it is necessary to be
able to deduce the same path from the same table name repeatedly.
Consequently the intermediate table files must be handled like normal
tables. Their internal names shall start with tmp_file_prefix
(#sql) and they shall not be converted like normal table names.
I added a flags parameter to all relevant functions that are
called from ALTER TABLE. It is used to suppress the conversion
for the intermediate table files.
The outcome is that the suppression of #sql in SHOW TABLES
works again. It does not suppress user tables as these are
converted to @0023sql on file level.
This patch does also fix ALTER TABLE ... RENAME, which could not
rename a table with non-ASCII characters in its name.
It does also fix the problem that a user could create a table like
`#sql-xxxx-yyyy`, where xxxx is mysqld's pid and yyyy is the thread
ID of some other thread, which prevented this thread from running
ALTER TABLE.
Some of the above problems are mentioned in Bug 1405, which can
be closed with this patch.
This patch does also contain some minor fixes for other forgotten
conversions. Still known problems are reported as bugs 21370,
21373, and 21387.
mysql-test/r/alter_table.result:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test results.
mysql-test/r/backup.result:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test results.
mysql-test/r/repair.result:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test results.
mysql-test/t/alter_table.test:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test cases.
mysql-test/t/backup.test:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test cases.
mysql-test/t/repair.test:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added a test case.
sql/ha_myisam.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added missing table name mapping calls to backup() and restore().
sql/ha_myisammrg.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/ha_ndbcluster.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/ha_ndbcluster_binlog.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/ha_ndbcluster_binlog.h:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Removed unnecessary check for wrong temp file prefix.
sql/mysql_priv.h:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Extended quick_rm_table(), mysql_rename_table(), and
build_table_filename() by an flags argument, which can indicate
temporary table names that should not be converted.
Added symbolic flag values.
sql/sql_acl.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_base.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Fixed a comment.
Added DBUG calls.
sql/sql_db.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_delete.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_insert.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_partition.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_rename.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_show.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Reverted the former fix for this bug. tmp_file_prefix is now used
verbatim in the comparison of file names.
sql/sql_table.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added a check for a tmp_file_prefix file name to
filename_to_tablename(). These names are now accepted without
conversion.
Extended quick_rm_table(), mysql_rename_table(), and
build_table_filename() by an flags argument, which can indicate
temporary table names that should not be converted.
Removed the table to file name conversion from
build_tmptable_filename().
Disabled REPAIR TABLE ... USE_FRM for temporary tables.
Added the forgotten conversion to mysql_alter_table() for the case
of ALTER TABLE ... RENAME.
Added comments and DBUG calls.
sql/sql_trigger.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_view.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/table.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Replaced a literal ".frm" by reg_ext.
Added DBUG calls.
storage/innobase/row/row0mysql.c:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Changed back the encoded temp file prefix to #sql.
Continued implementation of WL#1324 (table name to filename encoding)
The intermediate (not temporary) files of the new table
during ALTER TABLE was visible for SHOW TABLES. These
intermediate files are copies of the original table with
the changes done by ALTER TABLE. After all the data is
copied over from the original table, these files are renamed
to the original tables file names. So they are not temporary
files. They persist after ALTER TABLE, but just with another
name.
In 5.0 the intermediate files are invisible for SHOW TABLES
because all file names beginning with "#sql" were suppressed.
This failed since 5.1.6 because even temporary table names were
converted when making file names from them. The prefix became
converted to "@0023sql". Converting the prefix during SHOW TABLES
would suppress the listing of user tables that start with "#sql".
The solution of the problem is to continue the implementation of
the table name to file name conversion feature. One requirement
is to suppress the conversion for temporary table names.
This change is straightforward for real temporary tables as there
is a function that creates temporary file names.
But the generated path names are located in TMPDIR and have no
relation to the internal table name. This cannot be used for
ALTER TABLE. Its intermediate files need to be in the same
directory as the old table files. And it is necessary to be
able to deduce the same path from the same table name repeatedly.
Consequently the intermediate table files must be handled like normal
tables. Their internal names shall start with tmp_file_prefix
(#sql) and they shall not be converted like normal table names.
I added a flags parameter to all relevant functions that are
called from ALTER TABLE. It is used to suppress the conversion
for the intermediate table files.
The outcome is that the suppression of #sql in SHOW TABLES
works again. It does not suppress user tables as these are
converted to @0023sql on file level.
This patch does also fix ALTER TABLE ... RENAME, which could not
rename a table with non-ASCII characters in its name.
It does also fix the problem that a user could create a table like
`#sql-xxxx-yyyy`, where xxxx is mysqld's pid and yyyy is the thread
ID of some other thread, which prevented this thread from running
ALTER TABLE.
Some of the above problems are mentioned in Bug 1405, which can
be closed with this patch.
This patch does also contain some minor fixes for other forgotten
conversions. Still known problems are reported as bugs 21370,
21373, and 21387.
into dator5.(none):/home/pappa/bug18198
mysql-test/r/partition_pruning.result:
Auto merged
mysql-test/t/partition_pruning.test:
Auto merged
sql/item.h:
Auto merged
sql/item_cmpfunc.h:
Auto merged
sql/item_func.h:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/item_strfunc.h:
SCCS merged
New methods to handle VARCHAR strings and CHAR's which are not
using a binary collation.
Indentation fixes
Now strings are run through strnxfrm before they are processed
by the partition function
We do not allow collations where strnxfrm expands the string since
we want the resulting string to fit in the same value range as
the original.
mysql-test/r/partition_range.result:
New test cases
mysql-test/t/partition_range.test:
New test cases
sql/partition_info.h:
New methods to handle VARCHAR strings and CHAR's which are not
using a binary collation.
sql/sql_partition.cc:
New methods to handle VARCHAR strings and CHAR's which are not
using a binary collation.
Indentation fixes
Now strings are run through strnxfrm before they are processed
by the partition function
We do not allow collations where strnxfrm expands the string since
we want the resulting string to fit in the same value range as
the original.
New methods to handle VARCHAR strings and CHAR's which are not
using a binary collation.
Indentation fixes
Now strings are run through strnxfrm before they are processed
by the partition function
We do not allow collations where strnxfrm expands the string since
we want the resulting string to fit in the same value range as
the original.
mysql-test/r/partition.result:
Removed test case no longer supported
mysql-test/r/partition_error.result:
Changed behaviour of test case
mysql-test/r/partition_pruning.result:
Changed behaviour of test case
mysql-test/t/partition.test:
Changed behaviour of test case
mysql-test/t/partition_error.test:
Changed behaviour of test case
mysql-test/t/partition_pruning.test:
Changed behaviour of test case
sql/sql_partition.cc:
Ensured PARTITION BY KEY can use any column type
into dator5.(none):/home/pappa/bug18198
mysql-test/r/partition.result:
Auto merged
mysql-test/t/partition.test:
Auto merged
sql/item_func.h:
Auto merged
sql/item_strfunc.h:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
into sunlight.local:/local_work/tmp_merge-5.1-opt-mysql
mysql-test/r/partition_pruning.result:
Auto merged
mysql-test/t/partition_pruning.test:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_select.cc:
Auto merged
- Fix problems in the "Interval walking" partition interval analyzer.
mysql-test/r/partition_pruning.result:
BUG#20257: Add more testcases for partition pruning
mysql-test/t/partition_pruning.test:
BUG#20257: Add more testcases for partition pruning
sql/sql_partition.cc:
BUG#20257: Fix partition pruning for BIGINT UNSIGNED, interval walking:
- provide special handling for an edge case of interval of size 4G-1.
- Store interval size in ulonglong, not uint (it was possible to miss partitions this way)
- In get_next_partition_via_walking(), interpret the value of walked-over field as having the
same "signedness" as field (this is so because this value was obtained by calling field->val_int())
- Remove out of date todo comment.
Problem was with handling NULL values in ranges
mysql-test/r/partition_hash.result:
New partition pruning test cases
mysql-test/r/partition_list.result:
New partition pruning test cases
mysql-test/r/partition_pruning.result:
New partition pruning test cases
mysql-test/r/partition_range.result:
New partition pruning test cases
mysql-test/t/partition_hash.test:
New partition pruning test cases
mysql-test/t/partition_list.test:
New partition pruning test cases
mysql-test/t/partition_pruning.test:
New partition pruning test cases
mysql-test/t/partition_range.test:
New partition pruning test cases
sql/opt_range.cc:
Added comment
sql/sql_partition.cc:
Partition pruning didn't handle ranges with NULL values in a proper manner
into dator5.(none):/home/pappa/bug18198
mysql-test/r/partition.result:
Auto merged
mysql-test/t/partition.test:
Auto merged
sql/item_cmpfunc.h:
Auto merged
sql/item_strfunc.h:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/partition_info.cc:
manual merge
sql/partition_info.h:
manual merge
sql/sql_table.cc:
manual merge
