commit e759bc64eb5c5eed4f75677ad67246797d486460
Author: Ryan Mack
Date: 3 days ago
Bugfix for 53290, fast unique index creation fails on duplicate null values
Summary:
Bug in the fast index creation code incorrectly considers null
values to be duplicates during block merging. Innodb policy is that
multiple null values are allowed in a unique index. Null duplicates
were correctly ignored while sorting individual blocks and with slow
index creation.
Test Plan:
mtr, including new test, load dbs using deferred index creation
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Bugfix for 53290, fast unique index creation fails on duplicate null values
Summary:
Bug in the fast index creation code incorrectly considers null
values to be duplicates during block merging. Innodb policy is that
multiple null values are allowed in a unique index. Null duplicates
were correctly ignored while sorting individual blocks and with slow
index creation.
Test Plan:
mtr, including new test, load dbs using deferred index creation
DiffCamp Revision: 110840
Reviewed By: mcallaghan
CC: mcallaghan, mysql-devel@lists
Revert Plan:
OK
Extract part of innodb.innodb into innodb.innodb_misc1
This is needed in order to be able to more easily debug this test,
under valgrind, it is too huge.
they are ignored to a new test suite "innodb_plugin".
Remove a hack in mtr that was deployed to run the builtin InnoDB tests against
the InnoDB Plugin. Also detect if a test is an 'innodb plugin test' and if so
then transparently replace the builtin InnoDB with the InnoDB Plugin.
The problem is that we can not use make_cond_for_table().
This function relies on used_tables() condition
which is not set properly for subqueries.
As result subquery is not filtered out.
The fix is to use remove_eq_conds() function instead
of make_cond_for_table() func. 'remove_eq_conds()'
algorithm relies on const_item() value and it allows
to handle subqueries in right way.
Procedure, while DECIMAL works
Selecting of the CONCAT(...<SP variable>...) result into
a user variable may return wrong data.
Item_func_concat::val_str contains a number of memory
allocation-saving tricks. One of them concatenates
strings inplace inserting the value of one string
at the beginning of the other string. However,
this trick didn't care about strings those points
to the same data buffer: this is possible when
a CONCAT() parameter is a stored procedure variable -
Item_sp_variable::val_str() uses the intermediate
Item_sp_variable::str_value field, where it may
store a reference to an external buffer.
The Item_func_concat::val_str function has been
modified to take into account val_str functions
(such as Item_sp_variable::val_str) that return
a pointer to an internal Item member variable
that may reference to a buffer provided.
on index
'my_decimal' class has two members which can be used to access the
value. The member variable buf (inherited from parent class decimal_t)
is set to member variable buffer so that both are pointing to same value.
Item_copy_decimal::copy() uses memcpy to clone 'my_decimal'. The member
buffer is declared as an array and memcpy results in copying the values
of the array, but the inherited member buf, which should be pointing at
the begining of the array 'buffer' starts pointing to the begining of
buffer in original object (which is being cloned). Further updates on
'my_decimal' updates only the inherited member 'buf' but leaves
buffer unchanged.
Later when the new object (which now holds a inconsistent value) is cloned
again using proper cloning function 'my_decimal2decimal' the buf pointer
is fixed resulting in loss of the current value.
Using my_decimal2decimal instead of memcpy in Item_copy_decimal::copy()
fixed this problem.
data and index files
It was possible if DATA/INDEX DIRECTORY is pointing to
symlinked MySQL data home directory.
Do not allow to drop data/index files implicitly symlinked
to data home directory. For such tables remove symlink only.
Detailed revision comments:
r6800 | marko | 2010-03-11 12:02:57 +0200 (Thu, 11 Mar 2010) | 1 line
branches/zip: Add ut_ad(mtr->state == MTR_ACTIVE) to various places.
Detailed revision comments:
r6799 | jyang | 2010-03-11 09:59:42 +0200 (Thu, 11 Mar 2010) | 5 lines
branches/zip: Once change in bug #47621 merges into zip branch,
zip only test innodb_bug44571 needs to be updated to reflect the
column name change would be successful be done in InnoDB as well.
Detailed revision comments:
r6790 | jyang | 2010-03-10 13:09:41 +0200 (Wed, 10 Mar 2010) | 7 lines
branches/zip: Fix bug #51356: "many valgrind errors in error messages
with concurrent ddl". Null terminate the name string returned
from innobase_convert_identifier() call when reporting DB_DUPLICATE_KEY
error in create_table_def().
rb://266 approved by Marko
Detailed revision comments:
r6770 | marko | 2010-03-03 12:52:55 +0200 (Wed, 03 Mar 2010) | 12 lines
branches/zip: Disallow duplicate index name when creating an index.
This should fix Mantis Issue #461.
innodb.test, innodb.result, innodb-index.test, innodb-index.result:
Adjust the test result and mention that the introduced restriction
has been reported as MySQL Bug #51451.
innobase_check_index_keys(): Add a parameter for the InnoDB table and
check that no duplicate index name is added. Report errors by
my_error() instead of sql_print_error().
rb://260 approved by Sunny Bains
Detailed revision comments:
r6526 | jyang | 2010-01-28 18:12:40 +0200 (Thu, 28 Jan 2010) | 8 lines
branches/zip: Add index translation table to map mysql index
number to InnoDB index structure directly. Fix Bug #47622:
"the new index is added before the existing ones in MySQL,
but after one in SE".
rb://215, approved by Marko
Detailed revision comments:
r6472 | calvin | 2010-01-16 01:53:47 +0200 (Sat, 16 Jan 2010) | 12 lines
branches/zip: Merge revisions 6425:6471 from branches/5.1
to pick up the first part fix of bug49396.
------------------------------------------------------------------------
r6471 | calvin | 2010-01-15 17:43:27 -0600 (Fri, 15 Jan 2010) | 4 lines
branches/5.1: fix bug#49396: main.innodb test fails in embedded mode
Change replace_result by using $MYSQLD_DATADIR. Tested in both embedded
mode and normal server mode.
------------------------------------------------------------------------
r6473 | calvin | 2010-01-16 01:58:16 +0200 (Sat, 16 Jan 2010) | 6 lines
branches/zip: fix bug#49396: innodb.innodb-index test fails in
embedded mode
This is 2nd part of the fix for bug#49396. The 1st part is
innodb.test. Tested in both embedded mode and normal server mode.
