It's a regression issue.
The reason of the bug appeared to be an error introduced into 5.1 source code.
A piece of code in Create_file_log_event::do_apply_event() did not have test
coverage which made make test and pb unaware.
Fixed with inverting the old value of the return value from
Create_file_log_event::do_apply_event().
The rpl test suite is extended with `rpl_cross_version' the file to hold
regression cases similar to the current.
mysql-test/suite/rpl/r/rpl_cross_version.result:
new results file
mysql-test/suite/rpl/t/rpl_cross_version-master.opt:
options to the server to be able to start replication to itself
mysql-test/suite/rpl/t/rpl_cross_version.test:
regression test for bug#31240.
sql/log_event.cc:
Correcting the return value from Create_file_log_event::do_apply_event()
The problem is that the query cache was storing partial results
if the statement failed when sending the results to the client.
This could cause clients to hang when trying to read the results
from the cache as they would, for example, wait indefinitely for
a eof packet that wasn't saved.
The solution is to always discard the caching of a query that
failed to send its results to the associated client.
mysql-test/r/query_cache_notembedded.result:
Add test case result for Bug#40264
mysql-test/t/query_cache_notembedded.test:
Add test case for Bug#40264
sql/sql_cache.cc:
Abort if a unreported error was raised.
Extending the existing testcase written for BUG#40949 to verify
repair table operation for compressed tables
mysql-test/r/myisampack.result:
Modified result file for myisampack.test
mysql-test/t/myisampack.test:
Modified Testcase to test repair operation for compressed tables
clause server fires immediately after creating event and time between create and delete
event sometimes is enough for firing. So adding STARTS clause moves first execution in
future after drop of event
1. Added STARTS clause for CREATE EVENT.
2. Updated result file.
Post-fix test failure: fixed mysqlcheck.test on Windows platforms.
mysql-test/r/mysqlcheck.result:
fixed mysqlcheck.test on Windows platforms.
mysql-test/t/mysqlcheck.test:
fixed mysqlcheck.test on Windows platforms.
bug#33094: Error in upgrading from 5.0 to 5.1 when table contains
triggers
and
#41385: Crash when attempting to repair a #mysql50# upgraded table
with triggers.
Problem:
1. trigger code didn't assume a table name may have
a "#mysql50#" prefix, that may lead to a failing ASSERT().
2. "ALTER DATABASE ... UPGRADE DATA DIRECTORY NAME" failed
for databases with "#mysql50#" prefix if any trigger.
3. mysqlcheck --fix-table-name didn't use UTF8 as a default
character set that resulted in (parsing) errors for tables with
non-latin symbols in their names and definitions of triggers.
Fix:
1. properly handle table/database names with "#mysql50#" prefix.
2. handle --default-character-set mysqlcheck option;
if mysqlcheck is launched with --fix-table-name or --fix-db-name
set default character set to UTF8 if no --default-character-set
option given.
Note: if given --fix-table-name or --fix-db-name option,
without --default-character-set mysqlcheck option
default character set is UTF8.
client/mysqlcheck.c:
Fix for
bug#33094: Error in upgrading from 5.0 to 5.1 when table contains
triggers
and
#41385: Crash when attempting to repair a #mysql50# upgraded table
with triggers.
- check and set default charset if --default-character-set option
given.
- set default charset to "utf8" if there's
--fix-table-name or --fix-db-name and no --default-character-set.
mysql-test/r/mysqlcheck.result:
Fix for
bug#33094: Error in upgrading from 5.0 to 5.1 when table contains
triggers
and
#41385: Crash when attempting to repair a #mysql50# upgraded table
with triggers.
- test result.
mysql-test/t/mysqlcheck.test:
Fix for
bug#33094: Error in upgrading from 5.0 to 5.1 when table contains
triggers
and
#41385: Crash when attempting to repair a #mysql50# upgraded table
with triggers.
- test case.
sql/mysql_priv.h:
Fix for
bug#33094: Error in upgrading from 5.0 to 5.1 when table contains
triggers
and
#41385: Crash when attempting to repair a #mysql50# upgraded table
with triggers.
- check_n_cut_mysql50_prefix() introduced.
sql/sql_table.cc:
Fix for
bug#33094: Error in upgrading from 5.0 to 5.1 when table contains
triggers
and
#41385: Crash when attempting to repair a #mysql50# upgraded table
with triggers.
- tablename_to_filename() code split into 2 parts
- check_n_cut_mysql50_prefix() introduced to cut #mysql50# prefixes,
used in the trigger code as well.
sql/sql_trigger.cc:
Fix for
bug#33094: Error in upgrading from 5.0 to 5.1 when table contains
triggers
and
#41385: Crash when attempting to repair a #mysql50# upgraded table
with triggers.
- Table_triggers_list::check_n_load() - checking triggers assume
a table/database name given may have "#mysql50#" prefix in some cases.
- Table_triggers_list::change_table_name_in_triggers() -
create .TRG file in new database directory and delete it in old one,
as they may differ in case of
"ALTER DATABASE ... UPGRADE DATA DIRECTORY NAME"
- Table_triggers_list::change_table_name_in_trignames() - remove stale .TRN
files in #mysql50#dbname directory in case of database upgrade
- Table_triggers_list::change_table_name() - allow changing trigger's
database in case of its upgrading
sql/sql_trigger.h:
Fix for
bug#33094: Error in upgrading from 5.0 to 5.1 when table contains
triggers
and
#41385: Crash when attempting to repair a #mysql50# upgraded table
with triggers.
- new old_db_name parameter added in
Table_triggers_list::change_table_name_in_trignames() and
Table_triggers_list::change_table_name_in_triggers()
The next number (AUTO_INCREMENT) field of the table for write
rows events are not initialized, and cause some engines (innodb)
not correctly update the tables's auto_increment value.
This patch fixed this problem by honor next number fields if present.
mysql-test/extra/rpl_tests/rpl_auto_increment.test:
Add test code for BUG#41986
mysql-test/suite/rpl/r/rpl_auto_increment.result:
update test result file for BUG#41986
sql/log_event.cc:
set next_number_field before writing rows, and reset next_number_field after finished writing rows
The problem is that the query cache stores packets containing
the server status of the time when the cached statement was run.
This might lead to a wrong transaction status in the client side
if a statement is cached during a transaction and is later served
outside a transaction context (and vice-versa).
The solution is to take into account the transaction status when
storing in and serving from the query cache.
mysql-test/r/innodb_cache.result:
Update test case result.
mysql-test/r/query_cache.result:
Add test case result for Bug#36326
mysql-test/t/query_cache.test:
Add test case for Bug#36326
sql/mysql_priv.h:
Add new flags.
sql/sql_cache.cc:
Remember the transaction and autocommit status stored in the packet.
tests/mysql_client_test.c:
Add test case for Bug#36326
Detailed description of changes:
r3601 | marko | 2008-12-22 16:05:19 +0200 (Mon, 22 Dec 2008) | 9 lines
branches/5.1: Make
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED
a true replacement of SET GLOBAL INNODB_LOCKS_UNSAFE_FOR_BINLOG=1.
This fixes an error that was introduced in r370, causing
semi-consistent read not to not unlock rows in READ UNCOMMITTED mode.
(Bug #41671, Issue #146)
rb://67 approved by Heikki Tuuri
+ add workaround for bug 38124
+ messages into the protocol when sessions are switched
+ replace error numbers by error names
+ reset of system variables to initial values per subtest
+ remove a file created by this test
+ minor improvements in structure and formatting
The greedy optimizer tracks the current level of nested joins and the position
inside these by setting and maintaining a state that's global for the whole FROM
clause.
This state was correctly maintained inside the selection of the next partial plan
table (in best_extension_by_limited_search()).
greedy_search() also moves the current position by adding the last partial match
table when there's not enough tables in the partial plan found by
best_extension_by_limited_search().
This may require update of the global state variables that describe the current
position in the plan if the last table placed by greedy_search is not a top-level
join table.
Fixed by updating the state after placing the partial plan table in greedy_search()
in the same way this is done on entering the best_extension_by_limited_search().
Fixed the signature of the function called to update the state :
check_interleaving_with_nj
mysql-test/r/greedy_optimizer.result:
Bug #38795: test case
mysql-test/t/greedy_optimizer.test:
Bug #38795: test case
sql/sql_select.cc:
Bug #38795: correctly update current position when placing
the next partial plan table in greedy_search().
Added cleanup of status variables to the end of binlog_database.
Re-recorded .result file to account for cleanup statement.
NOTE: binlog.binlog_innodb also has had an FLUSH STATUS; statement added to it as well, but
adding this cleanup as a preventative measure.
Bounds-checks and blocksize corrections were applied to user-input,
but constants in the server were trusted implicitly. If these values
did not actually meet the requirements, the user could not set change
a variable, then set it back to the (wonky) factory default or maximum
by explicitly specifying it (SET <var>=<value> vs SET <var>=DEFAULT).
Now checks also apply to the server's presets. Wonky values and maxima
get corrected at startup. Consequently all non-offsetted values the user
sees are valid, and users can set the variable to that exact value if
they so desire.
mysql-test/r/read_buffer_size_basic.result:
test sets out of bounds value; we now throw a warning for this.
This is a side-effect: before, the maximum was higher than the
value we set here. The value was corrected to block-size, the
maximum was not, hence the value was smaller than the maximum
in this particular case. Now that we align the maxima at startup,
the value in SET is larger than the (corrected) maximum, and we
see a warning in this particular case. "This means we're doing it right."
mysql-test/r/read_rnd_buffer_size_basic.result:
test sets out of bounds value; we now throw a warning for this.
This is a side-effect: before, the maximum was higher than the
value we set here. The value was corrected to block-size, the
maximum was not, hence the value was smaller than the maximum
in this particular case. Now that we align the maxima at startup,
the value in SET is larger than the (corrected) maximum, and we
see a warning in this particular case. "This means we're doing it right."
mysys/my_getopt.c:
Do bounds-checking at start-up time so we'll catch and correct
wonky default values and upper limits.
sql/mysqld.cc:
If 0 is a legal value per the docs, not to mention the default, we shouldn't give 1 as
the lower limit.
storage/innobase/handler/ha_innodb.cc:
We are setting upper bounds here.
~0L gives -1. That is NOT what we want!
2. Avoid bad effects of bug 41925 Warning 1366 Incorrect string value:
... for column processlist.info
3. Add poll routines which ensure that subtests meet stable scenarios.
This does not change the sense of the subtests.
No need to mask the error code returned by getting the next row to end of file when
doing filesort.
mysql-test/r/innodb_mysql_rbk.result:
Bug #41543: test case
mysql-test/t/innodb_mysql_rbk-master.opt:
Bug #41543: test case
mysql-test/t/innodb_mysql_rbk.test:
Bug #41543: test case
sql/filesort.cc:
Bug #41543: No need to mask the error code returned by getting the next row to end of file when
doing filesort.
When substituting system constant functions with a constant result
the server was not expecting that the function may return NULL.
Fixed by checking for NULL and returning Item_null (in the relevant
collation) if the result of the system constant function was NULL.
mysql-test/r/mysql.result:
Bug #41437: test case
mysql-test/t/mysql.test:
Bug #41437: test case.
Relies on database() returning NULL if no database is
selected.
sql/item_strfunc.cc:
Bug #41437: Check for NULL result on evaluating the system
constant function and return a constant NULL item.
The special TRUNCATE TABLE (DDL) transaction wasn't being properly
rolled back if a error occurred during row by row deletion. The
error can be caused by a foreign key restriction imposed by InnoDB
SE and would cause the server to erroneously issue a implicit
commit.
The solution is to rollback the transaction if a truncation via row
by row deletion fails, otherwise commit. All effects of a TRUNCATE
ABLE operation are rolled back if a row by row deletion fails.
mysql-test/include/commit.inc:
Truncate always starts a transaction and commits at the end.
The commit at the end increases the count by two, one is the
storage engine commit and the other is the binary log.
mysql-test/r/commit_1innodb.result:
Update test case results.
mysql-test/r/innodb_mysql.result:
Update test case results.
mysql-test/t/innodb_mysql.test:
Add test case for Bug#37016
sql/sql_delete.cc:
Move truncation using row by row deletion to its own function.
If row by row deletion fails, rollback the transaction.
Remove the meddling with disabling and enabling of autocommit
as TRUNCATE transaction is now explicitly ended (committed
or rolled back).
