Problem: ALTER TABLE ADD INDEX may lead to table copying if there's
numeric field(s) with non-default display width modificator specified.
Fix: compare numeric field's storage lenghts when we decide whether
they can be considered 'equal' for table alteration purposes.
mysql-test/r/error_simulation.result:
Fix for bug#50946: fast index creation still seems to copy the table
- test result.
mysql-test/t/error_simulation.test:
Fix for bug#50946: fast index creation still seems to copy the table
- test case.
sql/field.cc:
Fix for bug#50946: fast index creation still seems to copy the table
- check numeric field's pack lengths instead of it's display lenghts
comparing fields equality for table alteration purposes.
sql/sql_table.cc:
Fix for bug#50946: fast index creation still seems to copy the table
- check compare_tables() result for testing purposes.
- avoid restart
- keep all in one file
- fix --check-testcase
BitKeeper/deleted/.del-error_simulation-master.opt:
Delete: mysql-test/t/error_simulation-master.opt
mysql-test/r/error_simulation.result:
Update result file
mysql-test/t/error_simulation.test:
Dynamically set debug flag for session only
Post merge fix.
mysql-test/t/error_simulation.test:
Post merge fix.
mysql-test/r/subselect.result:
Post merge fix.
mysql-test/r/error_simulation.result:
Post merge fix.
sql/item.cc:
Post merge fix.
a temporary table has grown out of heap memory reserved for it and
the remaining disk space is not big enough to store the table as
a MyISAM table.
The crash happens because the function create_myisam_from_heap
does not handle safely the mem_root structure associated
with the converted table in the case when an error has occurred.
sql/sql_select.cc:
Fixed bug #28449: a crash may happen at some rare conditions when
a temporary table has grown out of heap memory reserved for it and
the remaining disk space is not big enough to store the table as
a MyISAM table.
The crash happens because the function create_myisam_from_heap
does not handle safely the mem_root structure associated
with the converted table in the case when an error has occurred.
As it's hard to create a sitiation that would throw an error
a special code has been added that raises an error for a newly
created test called error_simulation.
mysql-test/r/error_simulation.result:
New BitKeeper file ``mysql-test/r/error_simulation.result''
Added a test case for bug #28449.
mysql-test/t/error_simulation-master.opt:
New BitKeeper file ``mysql-test/t/error_simulation-master.opt''
mysql-test/t/error_simulation.test:
New BitKeeper file ``mysql-test/t/error_simulation.test''
Added a test case for bug #28449.
