When statement to be prepared contained CREATE PROCEDURE, CREATE FUNCTION
or CREATE TRIGGER statements with a syntax error in it, the preparation
would fail with syntax error message, but the memory could be corrupted.
The problem occurred because we switch memroot when parse stored
routine or trigger definitions, and on parse error we restored the
original memroot only after performing some memory operations. In more
detail:
- prepared statement would activate its own memory root to parse
the definition of the stored procedure.
- SP would reset this memory root with its own memory root to
parse SP statements
- a syntax error would happen
- prepared statement would restore the original memory root
- stored procedure would restore what it thinks was the original
memory root, but actually was the statement memory root.
That led to double free - in destruction of the statement and in
a next call to mysql_parse().
The solution is to restore memroot right after the failed parsing.
mysql-test/r/ps.result:
Add result for bug#21856: Prepared Statements: crash if bad create.
mysql-test/t/ps.test:
Add test case for bug#21856: Prepared Statements: crash if bad create.
sql/sql_parse.cc:
On parse error if thd->lex->sphead is set we have to free sp_head object
to restore statement memroot, if it was switched during parsing.
The change here is for safety, currently query_cache_abort() and
lex->unit.cleanup() calls do not use current memroot.
sql/sql_prepare.cc:
On parse error if thd->lex->sphead is set we have to free sp_head object
to restore statement memroot, if it was switched during parsing.
into salvation.intern.azundris.com:/home/tnurnberg/21913/my50-21913
21913: DATE_FORMAT() Crashes mysql server if I use it through mysql-connector-j driver.
Variable character_set_results can legally be NULL (for "no conversion.")
This could result in a NULL deref that crashed the server. Fixed.
(Although ran some additional precursory tests to see whether I could break
anything else, but no breakage so far.)
mysql-test/r/func_time.result:
Bug#21913: DATE_FORMAT() Crashes mysql server if I use it through mysql-connector-j driver.
Prove DATE_FORMAT() no longer crashes the server when character_set_results is
NULL (which is a legal value and means, "no conversion").
mysql-test/t/func_time.test:
Bug#21913: DATE_FORMAT() Crashes mysql server if I use it through mysql-connector-j driver.
Prove DATE_FORMAT() no longer crashes the server when character_set_results is
NULL (which is a legal value and means, "no conversion").
sql/sql_string.cc:
Bug#21913: DATE_FORMAT() Crashes mysql server if I use it through mysql-connector-j driver.
Avoid NULL deref in my_charset_same() -- if !to_cs, we won't need to compare
because it is magic for, "no conversion."
Variable character_set_results can legally be NULL (for "no conversion.")
This could result in a NULL deref that crashed the server. Fixed.
(Although ran some additional precursory tests to see whether I could break
anything else, but no breakage so far.)
mysql-test/r/func_time.result:
Bug#21913: DATE_FORMAT() Crashes mysql server if I use it through mysql-connector-j driver.
Prove DATE_FORMAT() no longer crashes the server when character_set_results is
NULL (which is a legal value and means, "no conversion").
mysql-test/t/func_time.test:
Bug#21913: DATE_FORMAT() Crashes mysql server if I use it through mysql-connector-j driver.
Prove DATE_FORMAT() no longer crashes the server when character_set_results is
NULL (which is a legal value and means, "no conversion").
sql/sql_string.cc:
Bug#21913: DATE_FORMAT() Crashes mysql server if I use it through mysql-connector-j driver.
Avoid NULL deref in my_charset_same() -- if !to_cs, we won't need to compare
because it is magic for, "no conversion."
start instance; kill mysqlmanager; show ...
The problem was that Instance Manager didn't close client
sockets (sockets for client connections) on execing mysqld
instance. So, mysqld-instance inherits these descriptors.
The fix is to set close-on-exec flag for each client socket.
mysql-test/r/im_daemon_life_cycle.result:
Updated result file.
mysql-test/t/im_daemon_life_cycle.imtest:
Test for BUG#12751.
server-tools/instance-manager/listener.cc:
Set close-on-exec flag for each client socket.
into dl145s.mysql.com:/data/tkatchaounov/5.0-bug-21787
mysql-test/r/limit.result:
Auto merged
mysql-test/t/limit.test:
Auto merged
sql/sql_select.cc:
Adjust the fix for BUG#21787 for 5.0
The problem was due to a prior fix for BUG 9676, which limited
the rows stored in a temporary table to the LIMIT clause. This
optimization is not applicable to non-group queries with aggregate
functions. The fix disables the optimization in this case.
mysql-test/r/limit.result:
Test case for BUG#21787
mysql-test/t/limit.test:
Test case for BUG#21787
sql/sql_select.cc:
If there is an aggregate function in a non-group query,
materialize all rows in the temporary table no matter if
there is a LIMIT clause. This is necessary, since the
aggregate functions must be computed over all result rows,
not just the first LIMIT rows.
into maint2.mysql.com:/data/localhome/tsmith/bk/50
mysql-test/r/ctype_utf8.result:
Auto merged
mysql-test/t/ctype_utf8.test:
Auto merged
sql/net_serv.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
vio/viosocket.c:
Auto merged
client/mysql.cc:
Manual merge.
mysql-test/t/ctype_recoding.test:
Manual merge.
sql/sql_lex.h:
SCCS merged
sql/sql_table.cc:
Manual merge.
mysql-test/r/ctype_recoding.result:
Manual merge
so that 4.1 and 5.0 tests are all in the right place and no tests are duplicated.
client/mysqldump.c:
Restore fix for bug 21215 accidently removed during merge
mysql-test/r/mysqldump.result:
Update results
mysql-test/t/mysqldump.test:
Fix order of tests so that all the tests new to the 5.0 tree come after
"End of 4.1 tests", and so that each leaves things in the state it found
them (particularly by returning to the 'test' database. Also remove some
tests that were duplicated.
when a range condition use an invalid DATETIME constant.
Now we do not use invalid DATETIME constants to form end keys for
range intervals: range analysis just ignores predicates with such
constants.
mysql-test/r/query_cache.result:
Adjusted result warnings when adding a fix for bug #16249.
mysql-test/r/range.result:
Added a test case for bug #16249.
mysql-test/t/range.test:
Added a test case for bug #16249.
into shellback.(none):/home/msvensson/mysql/mysql-5.0-maint
configure.in:
Auto merged
include/mysql.h:
Auto merged
include/mysql_com.h:
Auto merged
sql-common/client.c:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/item_strfunc.h:
Auto merged
sql/sql_acl.cc:
Auto merged
mysql-test/r/ctype_ucs.result:
Update result file
mysql-test/t/ctype_ucs.test:
Disable testing of "encrypt" function in this file. That test has to be guarded by "have_crypt.inc"
into maint2.mysql.com:/data/localhome/tsmith/bk/bfx/50
BUILD/SETUP.sh:
Auto merged
mysql-test/r/ctype_ucs.result:
Auto merged
mysql-test/t/ctype_ucs.test:
Auto merged
BUILD/check-cpu:
Manual merge.
length limit", it's superseded by the fix for Bug#16899 "Possible buffer
overflow in handling of DEFINER-clause". Update test results.
mysql-test/r/grant.result:
A post-merge fix.
mysql-test/t/grant.test:
A new error is returned, use the default database after drop database.
sql/sql_acl.cc:
Remove an unneeded check.
into bodhi.local:/opt/local/work/mysql-5.0-14897
configure.in:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/im_life_cycle.result:
Auto merged
mysql-test/t/im_life_cycle.imtest:
Auto merged
sql/field.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/item_strfunc.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_view.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/share/errmsg.txt:
Auto merged
mysql-test/r/grant.result:
Manual merge.
mysql-test/r/view.result:
Manual merge.
mysql-test/t/grant.test:
Manual merge.
mysql-test/t/view.test:
Manual merge.
doesn't find the column"
When a user was using 4.1 tables with VARCHAR column and 5.0 server
and a query that used a temporary table to resolve itself, the
table metadata for the varchar column sent to client was incorrect:
MYSQL_FIELD::table member was empty.
The bug was caused by implicit "upgrade" from old VARCHAR to new
VARCHAR hard-coded in Field::new_field, which did not preserve
the information about the original table. Thus, the field metadata
of the "upgraded" field pointed to an auxiliary temporary table
created for query execution.
The fix is to copy the pointer to the original table to the new field.
mysql-test/r/type_varchar.result:
Update test results (Bug#14897)
mysql-test/t/type_varchar.test:
Add a test case for Bug#14897 "ResultSet.getString("table.column")
sometimes doesn't find the column"
sql/field.cc:
Preserve the original table name when converting fields from
old VARCHAR to new VARCHAR.
mysql-test/std_data/14897.frm:
New BitKeeper file ``mysql-test/std_data/14897.frm''
- BUG#15934: Instance manager fails to work;
- BUG#18020: IM connect problem;
- BUG#18027: IM: Server_ID differs;
- BUG#18033: IM: Server_ID not reported;
- BUG#21331: Instance Manager: Connect problems in tests;
The only test suite has been changed
(server codebase has not been modified).
BitKeeper/deleted/.del-im_check_os.inc:
Rename: mysql-test/include/im_check_os.inc -> BitKeeper/deleted/.del-im_check_os.inc
mysql-test/include/im_check_env.inc:
Include only this file from all IM-tests.
mysql-test/lib/mtr_io.pl:
Update mtr_get_pid_from_file() to workaround race,
described in BUG#21884.
mysql-test/lib/mtr_process.pl:
Refactor im_start()/im_stop() so that they will be more
reliable. There are the following user-visible changes:
- if one of these functions fails, the test suite
is aborted;
- mtr_im_stop() now determines whether the component is
alive or not not only by checking PID, but also by trying
to connect to the component;
- after starting IM, the test suite waits for it to start
accepting client connections and to start all its guarded
mysqld instances;
- a lot of debug-logs have been added in order to simplify
investigation of future failures.
mysql-test/mysql-test-run.pl:
1. Get rid of kill_and_cleanup();
2. Move im_start()/im_stop() to mtr_process.pl;
3. Change default IM port to 9311 so that it does not interfere
with default slave port;
mysql-test/r/im_daemon_life_cycle.result:
Updated result file.
mysql-test/r/im_life_cycle.result:
Updated result file.
mysql-test/r/im_options_set.result:
Updated result file.
mysql-test/r/im_options_unset.result:
Updated result file.
mysql-test/r/im_utils.result:
Updated result file.
mysql-test/t/im_daemon_life_cycle.imtest:
Updated IM-test.
mysql-test/t/im_life_cycle.imtest:
Updated IM-test.
mysql-test/t/im_options_set.imtest:
Updated IM-test.
mysql-test/t/im_options_unset.imtest:
Updated IM-test.
mysql-test/t/im_utils.imtest:
Updated IM-test.
When a view was used inside a trigger or a function, lock type for
tables used in a view was always set to READ (thus making the view
non-updatable), even if we were trying to update the view.
The solution is to set lock type properly.
mysql-test/r/view.result:
Add result for bug#17591: Updatable view not possible with trigger
or stored function.
mysql-test/t/view.test:
Add test case for bug#17591: Updatable view not possible with trigger
or stored function.
sql/sql_view.cc:
Move the code that sets requested lock type before the point where
we exit from mysql_make_view() when we process a placeholder for
prelocked table.
init_dumping now accepts a function pointer to the table or view specific init_dumping function. This allows both tables and views to use the init_dumping function.
client/mysqldump.c:
Added functions for table and view specific dumping initalization.
mysql-test/r/mysqldump.result:
Added Result.
mysql-test/t/mysqldump.test:
Added test case.
erroneous check
Problem: Actually there were two problems in the server code. The check
for SQLCOM_FLUSH in SF/Triggers were not according to the existing
architecture which uses sp_get_flags_for_command() from sp_head.cc .
This function was also missing a check for SQLCOM_FLUSH which has a
problem combined with prelocking. This changeset fixes both of these
deficiencies as well as the erroneous check in
sp_head::is_not_allowed_in_function() which was a copy&paste error.
mysql-test/r/sp-error.result:
update result
mysql-test/r/trigger.result:
update result
mysql-test/t/sp-error.test:
FLUSH can create a problem with prelocking, hence it's disabled.
There is a better way to check this than a check in the parser.
Now we use sp_get_flags_for_command() and the error returned is
different.
mysql-test/t/trigger.test:
FLUSH can create a problem with prelocking, hence it's disabled.
There is a better way to check this than a check in the parser.
Now we use sp_get_flags_for_command() and the error returned is
different.
sql/sp_head.cc:
FLUSH and RESET are not allowed inside a SF/Trigger.
Because they don't imply a COMMIT sp_head::HAS_COMMIT_OR_ROLLBACK
cannot be used. Two new flags were introduced for that reason.
sql/sp_head.h:
Don't check m_type as this check is erroneous. This is probably
a copy and paste error when moving code from somewhere else. Another
fact which supports this was prefixing the enum value with the name
of class sp_head.
Adding two new flags HAS_SQLCOM_RESET and HAS_SQLCOM_FLUSH. The values
are 2048 and 4096 because in the 5.1 branch there are already new flags
which are with values up-to 1024.
sql/sql_parse.cc:
FLUSH can cause a problem with prelocking in SF/Trigger and
therefore is already disabled. RESET is also disabled because
is handled by the same code as FLUSH. We won't allow RESET inside
SF/Trigger at that stage without thorough analysis. The check for
them is already done in the parser by calling
is_not_allowed_in_function()
sql/sql_yacc.yy:
By listing SQLCOM_FLUSH as command which implies COMMIT
in sp_get_flags_for_command() the check in sql_yacc.yy is
obsolete.
const tables. This resulted in choosing extremely inefficient
execution plans in same cases when distribution of data in
joined were skewed (see the customer test case for the bug).
mysql-test/r/select.result:
Added a test case for bug #21390: wrong estimate of rows
after elimination of const tables.
Includded a test case that checks the code added by the patch
that handles outer joins with no matches after substitution of
a const table in an efficient way.
mysql-test/t/select.test:
Added a test case for bug #21390: wrong estimate of rows
after elimination of const tables.
Included a test case that checks the code added by the patch
that handles outer joins with no matches after substitution of
a const table in an efficient way.
sql/sql_select.cc:
Fixed bug #21390: wrong estimate of rows after elimination of
const tables. This resulted in choosing extremely inefficient
execution plans in same cases when distribution of data in
joined were skewed (see the customer test case for the bug).
Also added the code to handle outer joins with no matches after
substitution of a const table in an efficient way.
Corrected calculation of the null rejecting key conditions.
The following procedure was not possible if max_sp_recursion_depth is 0
create procedure show_proc() show create procedure show_proc;
Actually there is no recursive call but the limit is checked.
Solved by temporarily increasing the thread's limit just before the fetch from cache
and decreasing after that.
mysql-test/r/sp.result:
update result
mysql-test/t/sp.test:
Test for bug #21416 SP: Recursion level higher than zero needed for non-recursive call
sql/sp.cc:
Increase the max_sp_recursion_depth temporarily for SHOW CREATE PROCEDURE call.
This call is in fact not recursive but is counted as such. Outcome, it will work
always but if max_sp_recursion_depth is reached we are going to cache one more
sp_head instance.
The mysql client uses the default character set on reconnect. The default character set is now controled by the client charset command while the client is running. The charset command now also issues a SET NAMES command to the server to make sure that the client's charset settings are in sync with the server's.
client/mysql.cc:
Client charset command now changes the default character set and issues a SET NAMES command to the server.
mysql-test/r/mysql.result:
Corrected results for new behaviour.
mysql-test/t/mysql.test:
Removed redundant commands from test.
Must not use Item_direct_ref in HAVING because it points to
the new value (witch is not yet calculated for the first row).
mysql-test/r/subselect.result:
Bug #16255: Subquery in where
- test case
mysql-test/t/subselect.test:
Bug #16255: Subquery in where
- test case
sql/item_subselect.cc:
Bug #16255: Subquery in where
Must not use Item_direct_ref in HAVING because it points to
the new value (witch is not yet calculated for the first row).
Changes in an item tree done by optimizer weren't properly
registered and went unnoticed, which resulted in preliminary freeing
of used memory.
mysql-test/r/ps.result:
Add result for bug#21166: Prepared statement causes signal 11
on second execution.
mysql-test/t/ps.test:
Add test case for bug#21166: Prepared statement causes signal 11
on second execution.
sql/item.cc:
Move Item::transform() and Item_default_value::transform() from
item.h here and use THD::change_item_tree() instead of plain
assignment.
Change Item_field::set_no_const_sub() to be used with Item::walk()
instead of Item::transform().
sql/item.h:
Move definition of Item::transform() and Item_default_value::transform()
to item.cc.
Change Item::set_no_const_sub() to be used with Item::walk()
instead of Item::transform().
sql/item_cmpfunc.cc:
Use Item::walk() to execute Item::set_no_const_sub().
Use THD::change_item_tree() instead of plain assignment.
sql/item_func.cc:
Add assert and comment to Item_func::traverse_cond().
sql/item_row.cc:
Use THD::change_item_tree() instead of plain assignment.
sql/item_strfunc.cc:
Move Item_func_make_set::transform() from item_strfunc.h here and use
THD::change_item_tree() instead of plain assignment.
sql/item_strfunc.h:
Move definition of Item_func_make_set::transform() to item_strfunc.cc.
- Fix typo in Item_func_export_set::fix_length_and_dec() which caused character set aggregation to fail
- Remove default argument from last arg of agg_arg_charsets() function, to reduce potential errors
mysql-test/r/func_misc.result:
Test EXPORT_SET() with charset coersion (bug #21531)
mysql-test/t/func_misc.test:
Test EXPORT_SET() with charset coersion (bug #21531)
sql/item_func.h:
Remove default argument from last arg of agg_arg_charsets() function, to reduce potential errors.
sql/item_strfunc.cc:
Fix typo in Item_func_export_set::fix_length_and_dec() which caused character set aggregation to fail.
Corrected test case for the bug#21261
sql_parse.cc:
Corrected fix for bug#21261
mysql-test/t/view.test:
Corrected test case for the bug#21261
mysql-test/r/view.result:
Corrected test case for the bug#21261
sql/sql_parse.cc:
Corrected fix for bug#21261
User name (host name) has limit on length. The server code relies on these
limits when storing the names. The problem was that sometimes these limits
were not checked properly, so that could lead to buffer overflow.
The fix is to check length of user/host name in parser and if string is too
long, throw an error.
mysql-test/r/grant.result:
Updated result file.
mysql-test/r/sp.result:
Updated result file.
mysql-test/r/trigger.result:
Updated result file.
mysql-test/r/view.result:
Updated result file.
mysql-test/t/grant.test:
Added test for BUG#16899.
mysql-test/t/sp.test:
Added test for BUG#16899.
mysql-test/t/trigger.test:
Added test for BUG#16899.
mysql-test/t/view.test:
Added test for BUG#16899.
sql/mysql_priv.h:
Added prototype for new function.
sql/share/errmsg.txt:
Added new resources.
sql/sql_acl.cc:
Remove outdated checks.
sql/sql_parse.cc:
Add a new function for checking string length.
sql/sql_yacc.yy:
Check length of user/host name.
