into dl145h.mysql.com:/data0/mkindahl/mysql-5.0-rpl-merge
include/my_sys.h:
Auto merged
mysql-test/r/blackhole.result:
Auto merged
mysql-test/r/case.result:
Auto merged
mysql-test/r/mysqlbinlog2.result:
Auto merged
mysql-test/t/blackhole.test:
Auto merged
mysql-test/t/case.test:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
Here is the scenario that causes the failure.(by Mats)
1. The to-be corrupt log event (let's call it X), is split into two
packets B and C on the network level (net_write_buff()). The parts
are X = (x',x''). The part x' ends up in packet B and part x''
ends up in packet C. Prior to the corrupt event X, the event Y has
been written successfully, but has been split into two packets as
well, which we call (y',y'').
2. The master sends packet A = (y'',x') to the slave, increases the
packet sequence number, the slave receives the packet, but fails
to reply before the master gets a timeout.
3. Since the master got a timeout, it reports failure, and aborts
sending the binary log by exiting mysql_binlog_send(). However, it
leaves the buffer intact, still holding y'' (but not x', since the
write_pos is not increased).
4. After exiting mysql_binlog_send(), the master does a
disconnection of the client thread, which involves sending an
error message e to the client (i.e., the slave).
5. In this case, net_write_buff() is used again, but this time the
old contents of the packet is used so that the new packet is
D = (y'',e). Note that this will use a new packet sequence number,
since the packet number was increased in step 2.
6. The slave receives the tail y'' of the Y log event, concatenates
this with x' (which it already received), and writes the event
(x',y'') it to the relay log since it hasn't noticed anything is
amiss.
7. It then tries to read more bytes, which is either e (if the length
given for X just happened to match the length given for Y, or just
plain garbage because the slave is out of sync with what is
actually sent.
8. After a while, the SQL thread tries to execute the event (x',y''),
which is very likely to be just nonsense.
The problem can be fixed by not resetting net->error after the call of
mysql_binlog_send, so the error message will not be sent and the connection
will be closed.
sql/sql_parse.cc:
Do not reset net->error, if net->error == 2, we should not try to use the connection again
When read_only option was enabled, a user without SUPER privilege could
perform CREATE DATABASE and DROP DATABASE operations.
This patch adds a check to make sure this isn't possible. It also attempts to
simplify the logic used to determine if relevant tables are updated,
making it more human readable.
mysql-test/r/read_only.result:
Updated result file
mysql-test/t/read_only.test:
A test case is added which shows that it is not possible to drop or create a
database in read-only mode despite having the GRANT permissions to do so,
SUPER user excepted.
sql/sql_parse.cc:
- Simplified complex predicate by grouping it in a read friendly way.
- Added predicate to fail on database updates while running in read-only
mode.
into lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.0-rt-merge
sql/mysqld.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
FLUSH TABLES WITH READ LOCK fails to properly detect write locked
tables when running under low priority updates.
The problem is that when trying to aspire a global read lock, the
reload_acl_and_cache() function fails to properly check if the thread
has a low priority write lock, which later my cause a server crash or
deadlock.
The solution is to simple check if the thread has any type of the
possible exclusive write locks.
mysql-test/r/flush.result:
Add test case result for Bug#32528
mysql-test/t/flush.test:
Add test case for Bug#32528
sql/sql_parse.cc:
Although it should not matter under LOCK TABLES, use TL_WRITE_ALLOW_WRITE
to emphasize that it should fail in case of any write lock.
into mysql.com:/home/bar/mysql-work/mysql-5.0-rpl-merge
mysql-test/r/ctype_utf8.result:
Auto merged
mysql-test/r/func_regexp.result:
Auto merged
mysql-test/t/ctype_utf8.test:
Auto merged
mysql-test/t/func_regexp.test:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_cmpfunc.h:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_update.cc:
Auto merged
mysql-test/r/ctype_ucs.result:
After merge fix
mysql-test/t/ctype_ucs.test:
After merge fix
into mysql.com:/home/bar/mysql-work/mysql-5.0-rpl-mr
client/mysql.cc:
Auto merged
mysql-test/r/ctype_euckr.result:
Auto merged
mysql-test/r/ctype_uca.result:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
strings/ctype-euc_kr.c:
Auto merged
into mysql.com:/home/gluh/MySQL/Merge/5.0-opt
client/mysqldump.c:
Auto merged
include/config-win.h:
Auto merged
libmysql/libmysql.c:
Auto merged
myisam/sort.c:
Auto merged
mysql-test/r/func_sapdb.result:
Auto merged
mysql-test/r/variables.result:
Auto merged
mysql-test/t/variables.test:
Auto merged
sql/field.cc:
Auto merged
sql/ha_innodb.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_sum.cc:
Auto merged
sql/item_timefunc.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
tests/mysql_client_test.c:
Auto merged
mysql-test/r/type_datetime.result:
manual merge
mysql-test/r/type_decimal.result:
manual merge
mysql-test/t/type_datetime.test:
manual merge
mysql-test/t/type_decimal.test:
manual merge
sql/item.cc:
manual merge
The root cause of the issue was that the CREATE FUNCTION grammar,
for User Defined Functions, was using the sp_name rule.
The sp_name rule is intended for fully qualified stored procedure names,
like either ident.ident, or just ident but with a default database
implicitly selected.
A UDF does not have a fully qualified name, only a name (ident), and should
not use the sp_name grammar fragment during parsing.
The fix is to re-organize the CREATE FUNCTION grammar, to better separate:
- creating UDF (no definer, can have AGGREGATE, simple ident)
- creating Stored Functions (definer, no AGGREGATE, fully qualified name)
With the test case provided, another issue was exposed which is also fixed:
the DROP FUNCTION statement was using sp_name and also failing when no database
is implicitly selected, when droping UDF functions.
The fix is also to change the grammar so that DROP FUNCTION works with
both the ident.ident syntax (to drop a stored function), or just the ident
syntax (to drop either a UDF or a Stored Function, in the current database)
mysql-test/r/sp-error.result:
Adjust test results
mysql-test/r/udf.result:
Adjust test results
mysql-test/t/sp-error.test:
Adjust test results
mysql-test/t/udf.test:
Adjust test results
sql/sql_parse.cc:
CREATE UDF FUNCTION does not use a fully qualified name.
sql/sql_yacc.yy:
Fix grammar for CREATE / DROP FUNCTION, FOR udf
Improve error messages for select no_such_function()
similar to bug_27716, but it was stressed on in the synopsis on that there is another
side of the artifact affecting behaviour in transaction.
Fixed with deploying multi_delete::send_error() - otherwise never called - and refining its logic
to perform binlogging job if needed.
The changeset includes the following side effects:
- added tests to check bug_23333's scenarios on the mixture of tables for multi_update;
- fixes bug@30763 with two-liner patch and a test coinciding to one added for bug_23333.
mysql-test/r/innodb.result:
results changed
mysql-test/r/mix_innodb_myisam_binlog.result:
results changed
mysql-test/r/multi_update.result:
results changed
mysql-test/t/innodb.test:
trans table specific test added
mysql-test/t/mix_innodb_myisam_binlog.test:
multi-update and multi-delete of mixure of ta and not-ta tables tests added (relates to bug_23333).
mysql-test/t/multi_update.test:
testing another branch of mult-delete: send_eof() (binloggin there), send_error (early return)
sql/sql_class.h:
a new flag to designate the fact the statement's error has been handled.
The flag is checked by ::send_error() methods (multi_update and _delete classes)
sql/sql_delete.cc:
expanding multi_delete::send_error to
1. early return if error_handled == t
2. binlogging locally if there was a non-trans table modified side effect
sql/sql_parse.cc:
adding multi_update::send_error which can perform binlogging and rollback job in needed
sql/sql_update.cc:
issues relating to
1. bug_27716 with zeroing of `updated' to serve as the flag of early return from send_error().
The flag is changed to be a new member error_handled; also moved outside binlogging branch.
The reason for this change is that bug_23333 fixes were pushed after the bug_27716's and they
left this flaw (also no test coverage).
2. bug_30763 with assertion on trans_safe. I decide to make 2 liner fix for that bug here instead of to remove
those two assertions. This new bug test case is the same as for multi-update on the mixure of tables.
The rational for this fix:
presumption for mutli_update::trans_safe to be set to zero at
multi_update::multi_update or multi_update::initialize_tables() is incorrect.
trans_safe := false should happen only when a non-transactional table gets modified.
Therefore, at initialization the member must be be set to true.
into bodhi.(none):/opt/local/work/mysql-5.0-runtime
mysql-test/r/sp.result:
Auto merged
mysql-test/t/sp.test:
Auto merged
sql/sql_parse.cc:
Auto merged
added check for hidden I_S tables for 'show columns|keys' commands
mysql-test/r/information_schema.result:
test result
mysql-test/t/information_schema.test:
test case
sql/sql_parse.cc:
added check for hidden I_S tables for 'show columns|keys' commands
active_mi has been reset (shutdown) at the time of quering with
SHOW SLAVE STATUS so that
at handling of SHOW an attempt to read its members segfaults.
Fixed with checking the value of active_mi before to call show_master_info()
Merely send_ok() is invoked when active_mi does not exist.
A test can not be easiely written.
Notice, there are more analogical cases in the code which require a similar
treatment (to be reported as a bug separately).
sql/sql_parse.cc:
Ignore reporting and send only OK if master info struct has been destoyed.
As this must be at shutdown merely a warning is sent to the client.
The problem was that aborted_threads variable was updated
twice when a client connection had been aborted.
The fix is to refactor a code to have aborted_threads updated
only in one place.
sql/mysql_priv.h:
Make do_command() a private function.
sql/sql_parse.cc:
1. Make do_command() a private function;
2. Update aborted_threads in the only one place.
Use view db name as thread default database, in order to ensure
that the view is parsed and prepared correctly.
mysql-test/r/sp.result:
test result
mysql-test/t/sp.test:
test case
sql/sql_parse.cc:
copy thd->db_length to table_list->db_length
sql/sql_view.cc:
Use view db name as thread default database, in order to ensure
that the view is parsed and prepared correctly.
When dumping database from a 4.x server, the mysqldump client
inserted a delimiter sign inside special commentaries of the form:
/*!... CREATE DATABASE IF NOT EXISTS ... ;*/
During restoration that dump file was splitten by delimiter signs on
the client side, and the rest of some commentary strings was prepended
to following statements.
The 4x_server_emul test case option has been added for use with the
DBUG_EXECUTE_IF debugging macro. This option affects debug server
builds only to emulate particular behavior of a 4.x server for
the mysqldump client testing. Non-debugging builds are not affected.
mysql-test/r/mysqldump-compat.result:
Added test case for bug #30126.
mysql-test/t/mysqldump-compat.opt:
Added test case for bug #30126.
mysql-test/t/mysqldump-compat.test:
Added test case for bug #30126.
sql/sql_parse.cc:
Fixed bug #30126.
The mysqldump client uses the "SHOW CREATE DATABASE" query to
obtain the "CREATE DATABASE" statement from that database.
The 4.x server doesn't recognise that query, and mysqldump
forms the "CREATE DATABASE" statement from scratch.
That statement was formed incorrectly.
To enforce the mysqldump client to create that statement from
scratch, debugging code has been added to the mysql_execute_command
function: in tcase of the --loose-debug=d,4x_server_emul option,
the server returns parse error to client to emulate old behaviour.
The 4x_server_emul test case option has been added for use with the
DBUG_EXECUTE_IF debugging macro. This option affects debug server
builds only to emulate particular behavior of a 4.x server for
the mysqldump client testing. Non-debugging builds are not affected.
client/mysqldump.c:
Fixed bug #30126.
The init_dumping_tables function has been modified to output semicolon
outside of commentaries.
The SELECT query with more than 31 nested dependent SELECT queries returned
wrong result.
New error message has been added: ER_TOO_HIGH_LEVEL_OF_NESTING_FOR_SELECT.
It will be reported as: "Too high level of nesting for select".
sql/sql_parse.cc:
Fixed bug #27352.
The Item_sum::register_sum_func method has been modified to return
TRUE on exceeding of allowed level of SELECT nesting and to report
corresponding error message.
sql/unireg.h:
Fixed bug #27352.
Constant definition has been added: maximal allowed level of SELECT nesting.
mysql-test/t/select.test:
Updated test case for bug #27352.
mysql-test/r/select.result:
Updated test case for bug #27352.
sql/share/errmsg.txt:
Fixed bug #27352.
New error message has been added: ER_TOO_HIGH_LEVEL_OF_NESTING_FOR_SELECT.
Problem: thd->thread_specific_used flag is not set executing a statement
containig connection_id() function using PS protocol, that leads to
improper binlog event creation.
Fix: set the flag in the Item_func_connection_id::fix_fields().
sql/item_create.cc:
Fix for bug #30200: mysqlbinlog.test: connection_id() not restored under ps-protocol
- set the thd->thread_specific_used flag in the Item_func_connection_id::fix_fields()
to have it properly set using PS protocol as well.
sql/item_func.cc:
Fix for bug #30200: mysqlbinlog.test: connection_id() not restored under ps-protocol
- set the thd->thread_specific_used flag in the Item_func_connection_id::fix_fields()
to have it properly set using PS protocol as well.
sql/sql_parse.cc:
Fix for bug #30200: mysqlbinlog.test: connection_id() not restored under ps-protocol
- reset the thd->thread_specific_used flag in the mysql_reset_thd_for_next_command().
Bug #27417 thd->no_trans_update.stmt lost value inside of SF-exec-stack
Once had been set the flag might later got reset inside of a stored routine
execution stack.
The reason was in that there was no check if a new statement started at time
of resetting.
The artifact affects most of binlogable DML queries. Notice, that multi-update
is wrapped up within
bug@27716 fix, multi-delete bug@29136.
Fixed with saving parent's statement flag of whether the statement modified
non-transactional table, and unioning (merging) the value with that was gained
in mysql_execute_command.
Resettling thd->no_trans_update members into thd->transaction.`member`;
Asserting code;
Effectively the following properties are held.
1. At the end of a substatement thd->transaction.stmt.modified_non_trans_table
reflects the fact if such a table got modified by the substatement.
That also respects THD::really_abort_on_warnin() requirements.
2. Eventually thd->transaction.stmt.modified_non_trans_table will be computed as
the union of the values of all invoked sub-statements.
That fixes this bug#27417;
Computing of thd->transaction.all.modified_non_trans_table is refined to base to
the stmt's value for all the case including insert .. select statement which
before the patch had an extra issue bug@28960.
Minor issues are covered with mysql_load, mysql_delete, and binloggin of insert in
to temp_table select.
The supplied test verifies limitely, mostly asserts. The ultimate testing is defered
for bug@13270, bug@23333.
mysql-test/r/mix_innodb_myisam_binlog.result:
results changed
mysql-test/t/mix_innodb_myisam_binlog.test:
regression test incl the related bug#28960.
sql/ha_ndbcluster.cc:
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
sql/handler.cc:
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
sql/handler.h:
new member added
sql/log.cc:
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
sql/set_var.cc:
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
sql/sp_head.cc:
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
and saving and merging stmt's flag at the end of a substatement.
sql/sql_class.cc:
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
sql/sql_class.h:
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
sql/sql_delete.cc:
correcting basic delete incl truncate branch and multi-delete queries to set
stmt.modified_non_trans_table;
optimization to set the flag at the end of per-row loop;
multi-delete still has an extra issue similar to bug#27716 of multi-update
- to be address with bug_29136 fix.
sql/sql_insert.cc:
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
sql/sql_load.cc:
eliminating a separate issue where the stmt flag was saved and re-stored after
write_record that actually could change it and the change would be lost but
should remain permanent;
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
sql/sql_parse.cc:
initialization to transaction.stmt.modified_non_trans_table at the common part
of all types of statements processing - mysql_execute_command().
sql/sql_table.cc:
moving the reset up to the mysql_execute_command() caller
sql/sql_update.cc:
correcting update query case (multi-update part of the issues covered by other
bug#27716 fix)
thd->transaction.{all,stmt}.modified_non_trans_table
instead of
thd->no_trans_update.{all,stmt}
into bodhi.(none):/opt/local/work/mysql-5.0-runtime
mysql-test/t/sp.test:
Auto merged
sql/item.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
mysql-test/r/innodb_mysql.result:
Manual merge.
mysql-test/t/innodb_mysql.test:
Manual merge.
selected prior: ensure the fix also works for information_schema
tables.
sql/sql_parse.cc:
Ensure the fix for Bug#29050 works for information_schema tables.
causes full table lock on innodb table.
Also fixes Bug#28502 Triggers that update another innodb table
will block on X lock unnecessarily (duplciate).
Code review fixes.
Both bugs' synopses are misleading: InnoDB table is
not X locked. The statements, however, cannot proceed concurrently,
but this happens due to lock conflicts for tables used in triggers,
not for the InnoDB table.
If a user had an InnoDB table, and two triggers, AFTER UPDATE and
AFTER INSERT, competing for different resources (e.g. two distinct
MyISAM tables), then these two triggers would not be able to execute
concurrently. Moreover, INSERTS/UPDATES of the InnoDB table would
not be able to run concurrently.
The problem had other side-effects (see respective bug reports).
This behavior was a consequence of a shortcoming of the pre-locking
algorithm, which would not distinguish between different DML operations
(e.g. INSERT and DELETE) and pre-lock all the tables
that are used by any trigger defined on the subject table.
The idea of the fix is to extend the pre-locking algorithm to keep track,
for each table, what DML operation it is used for and not
load triggers that are known to never be fired.
mysql-test/r/trigger-trans.result:
Update results (Bug#26141)
mysql-test/r/trigger.result:
Update results (Bug#28502)
mysql-test/t/trigger-trans.test:
Add a test case for Bug#26141 mixing table types in trigger causes
full table lock on innodb table.
mysql-test/t/trigger.test:
Add a test case for Bug#28502 Triggers that update another innodb
table will block echo on X lock unnecessarily. Add more test
coverage for triggers.
sql/item.h:
enum trg_event_type is needed in table.h
sql/sp.cc:
Take into account table_list->trg_event_map when determining
what tables to pre-lock.
After this change, if we attempt to fire a
trigger for which we had not pre-locked any tables, error
'Table was not locked with LOCK TABLES' will be printed.
This, however, should never happen, provided the pre-locking
algorithm has no programming bugs.
Previously a trigger key in the sroutines hash was based on the name
of the table the trigger belongs to. This was possible because we would
always add to the pre-locking list all the triggers defined for a table when
handling this table.
Now the key is based on the name of the trigger, owing
to the fact that a trigger name must be unique in the database it
belongs to.
sql/sp_head.cc:
Generate sroutines hash key in init_spname(). This is a convenient
place since there we have all the necessary information and can
avoid an extra alloc.
Maintain and merge trg_event_map when adding and merging elements
of the pre-locking list.
sql/sp_head.h:
Add ,m_sroutines_key member, used when inserting the sphead for a
trigger into the cache of routines used by a statement.
Previously the key was based on the table name the trigger belonged
to, since for a given table we would add to the sroutines list
all the triggers defined on it.
sql/sql_lex.cc:
Introduce a new lex step: set_trg_event_type_for_tables().
It is called when we have finished parsing but before opening
and locking tables. Now this step is used to evaluate for each
TABLE_LIST instance which INSERT/UPDATE/DELETE operation, if any,
it is used in.
In future this method could be extended to aggregate other information
that is hard to aggregate during parsing.
sql/sql_lex.h:
Add declaration for set_trg_event_type_for_tables().
sql/sql_parse.cc:
Call set_trg_event_type_for_tables() after MYSQLparse(). Remove tabs.
sql/sql_prepare.cc:
Call set_trg_event_type_for_tables() after MYSQLparse().
sql/sql_trigger.cc:
Call set_trg_event_type_for_tables() after MYSQLparse().
sql/sql_trigger.h:
Remove an obsolete member.
sql/sql_view.cc:
Call set_trg_event_type_for_tables() after MYSQLparse().
sql/sql_yacc.yy:
Move assignment of sp_head::m_type before calling sp_head::init_spname(),
one is now used inside another.
sql/table.cc:
Implement TABLE_LIST::set_trg_event_map() - a method that calculates
wh triggers may be fired on this table when executing a statement.
sql/table.h:
Add missing declarations.
Move declaration of trg_event_type from item.h (it will be needed for
trg_event_map bitmap when we start using Bitmap template instead
of uint8).
Problem: logging queries not using indexes we check a special flag which
is set only at the server startup and is not changing with a corresponding
server variable together.
Fix: check the variable value instead of the flag.
mysql-test/r/show_check.result:
Fix for bug #28808: log_queries_not_using_indexes variable dynamic change is ignored
- test result.
mysql-test/t/show_check.test:
Fix for bug #28808: log_queries_not_using_indexes variable dynamic change is ignored
- test case.
sql/mysqld.cc:
Fix for bug #28808: log_queries_not_using_indexes variable dynamic change is ignored
- SPECIAL_LOG_QUERIES_NOT_USING_INDEXES is not used anymore.
sql/sql_parse.cc:
Fix for bug #28808: log_queries_not_using_indexes variable dynamic change is ignored
- check opt_log_queries_not_using_indexes instead of
SPECIAL_LOG_QUERIES_NOT_USING_INDEXES flag.
sql/unireg.h:
Fix for bug #28808: log_queries_not_using_indexes variable dynamic change is ignored
- SPECIAL_LOG_QUERIES_NOT_USING_INDEXES is not used anymore.
fails if a database is not selected prior.
The problem manifested itself when a user tried to
create a routine that had non-fully-qualified identifiers in its bodies
and there was no current database selected.
This is a regression introduced by the fix for Bug 19022:
The patch for Bug 19022 changes the code to always produce a warning
if we can't resolve the current database in the parser.
In this case this was not necessary, since even though the produced
parsed tree was incorrect, we never re-use sphead
that was obtained at first parsing of CREATE PROCEDURE.
The sphead that is anyhow used is always obtained through db_load_routine,
and there we change the current database to sphead->m_db before
calling yyparse.
The idea of the fix is to resolve the current database directly using
lex->sphead->m_db member when parsing a stored routine body, when
such is present.
This patch removes the need to reset the current database
when loading a trigger or routine definition into SP cache.
The redundant code will be removed in 5.1.
mysql-test/r/sp.result:
Update test results (Bug#29050)
mysql-test/r/trigger.result:
Update results.
mysql-test/t/sp.test:
Add a test case for Bug#29050
mysql-test/t/trigger.test:
Fix wrong behavior covered with tests.
sql/sql_lex.cc:
Implement st_lex::copy_db_to().
sql/sql_lex.h:
Declare st_lex::copy_db_to().
sql/sql_parse.cc:
Use st_lex::copy_db_to() in add_table_to_list, rather than
THD::copy_db_to(). The former will use the database of the sphead,
if we're parsing a stored routine, not the default database in
THD. The default database is needed to initialize tables->db
when the database part was not explicitly specified in the identifier.
sql/sql_yacc.yy:
Use st_lex::copy_db_to() in the parser, rather than
THD::copy_db_to(). The former will use the database of the sphead,
if we're parsing a stored routine, not the default database in
THD.
LOCK TABLES takes a list of tables to lock. It may lock several
tables successfully and then encounter a tables that it can't lock,
e.g. because it's locked. In such case it needs to undo the locks on
the already locked tables. And it does that. But it has also notified
the relevant table storage engine handlers that they should lock.
The only reliable way to ensure that the table handlers will give up
their locks is to end the transaction. This is what UNLOCK TABLE
does : it ends the transaction if there were locked tables by LOCK
tables.
It is possible to end the transaction when the lock fails in
LOCK TABLES because LOCK TABLES ends the transaction at its start
already.
Fixed by ending (again) the transaction when LOCK TABLES fails to
lock a table.
mysql-test/r/innodb_mysql.result:
Bug #29154: test case
mysql-test/t/innodb_mysql.test:
Bug #29154: test case
sql/sql_parse.cc:
Bug #29154: end the trasaction at a failing
LOCK TABLES so the handler can free its locks.
into adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_view.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
ALTER VIEW is currently not supported as a prepared statement
and should be disabled as such as they otherwise could cause server crashes.
ALTER VIEW is currently not supported when called from stored
procedures or functions for related reasons and should also be disabled.
This patch disables these DDL statements and adjusts the appropriate test
cases accordingly.
Additional tests has been added to reflect on the fact that we do support
CREATE/ALTER/DROP TABLE for Prepared Statements (PS), Stored Procedures (SP)
and PS within SP.
mysql-test/r/ps_1general.result:
- Updated test to reflect on the new policy to disallow ALTER VIEW within SP.
mysql-test/r/sp-dynamic.result:
- Added PS ALTER TABLE test from within SP-context to demonstrate that CREATE/ALTER/DROP
TABLE statements is working.
- Added PS CREATE/ALTER/DROP VIEW tests from within SP-context to show that
ALTER VIEW is not supported, CREATE VIEW/DROP VIEW are supported.
mysql-test/r/sp-error.result:
- Updated test to reflect on the new policy to disallow VIEW DDL within SP.
mysql-test/t/ps_1general.test:
- Updated test to reflect on the new policy to disallow VIEW DDL within SP.
mysql-test/t/sp-dynamic.test:
- Add PS ALTER TABLE test from within SP to demonstrate that CREATE/ALTER/DROP
TABLE statements are supported.
mysql-test/t/sp-error.test:
- Updated test to reflect on the new policy to disallow ALTER VIEW
within SP-context.
- Changed error code 1314 to the more abstract ER_SP_BADSTATEMENT.
sql/sql_class.h:
- Added comment for clarity
sql/sql_parse.cc:
- Added comment for clarity
sql/sql_prepare.cc:
- Disallow ALTER VIEW as prepared statements until they are
properly supported. Note that SQLCOM_CREATE_VIEW also handles ALTER VIEW
statements.
sql/sql_view.cc:
- converted to doxygen comments
- Added comment for clarity
sql/sql_yacc.yy:
- Disallow ALTER VIEW statements within a SP.
If the parser is operating within the SP context, this is shown
on the sp->sphead pointer. If this flag is set for view DDL operations
we stop parsing with the error 'ER_SP_BAD_STATEMENT'.
into quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/maint/jun14/50
configure.in:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/binlog.result:
Auto merged
mysql-test/r/have_log_bin.require:
Auto merged
BitKeeper/deleted/.del-ctype_cp932_notembedded.test:
Auto merged
mysql-test/t/binlog.test:
Auto merged
mysql-test/t/ctype_cp932_binlog.test:
Auto merged
mysql-test/t/ctype_ucs_binlog.test:
Auto merged
mysql-test/t/flush_block_commit_notembedded.test:
Auto merged
mysql-test/t/insert_select-binlog.test:
Auto merged
mysql-test/t/mysqlbinlog-cp932.test:
Auto merged
mysql-test/t/mysqldump.test:
Auto merged
mysql-test/t/sp_trans.test:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/r/mix_innodb_myisam_binlog.result:
Use local
mysql-test/t/blackhole.test:
manual merge
mysql-test/t/drop_temp_table.test:
manual merge
mysql-test/t/mix_innodb_myisam_binlog.test:
Use local
mysql-test/t/mysqlbinlog.test:
Use local
into mysql.com:/d2/hf/mrg/mysql-5.0-opt
client/mysqltest.c:
Auto merged
sql/field.cc:
Auto merged
sql/field.h:
Auto merged
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
mysql-test/r/innodb_mysql.result:
merging
mysql-test/t/innodb_mysql.test:
merging
sql/sql_select.cc:
merging
protocol
Fixed duplicated code, same as last commit.
One could send a malformed packet that caused the server to SEGV. In
recent versions of the password protocol, the client tells the server
what length the ciphertext is (almost always 20). If that length was
large enough to overflow a signed char, then the number would jump to
very large after being casted to unsigned int.
Instead, cast the *passwd char to uchar.
sql/sql_parse.cc:
Additional location of signed-char casted to uint.
protocol
One could send a malformed packet that caused the server to SEGV. In
recent versions of the password protocol, the client tells the server
what length the ciphertext is (almost always 20). If that length was
large enough to overflow a signed char, then the number would jump to
very large after being casted to unsigned int.
Instead, cast the *passwd char to uchar.
sql/sql_parse.cc:
Cast *passwd to get rid of the sign, so that sign extension doesn't
cause the sequence 125, 126, 127, 4294967169, 4294967170.
In case of database level grant the database name may be a pattern,
in case of table|column level grant the database name can not be a pattern.
We use 'dont_check_global_grants' as a flag to determine
if it's database level grant command
(see SQLCOM_GRANT case, mysql_execute_command() function) and
set db_is_pattern according to 'dont_check_global_grants' value.
mysql-test/r/grant2.result:
test result
mysql-test/t/grant2.test:
test case
sql/sql_parse.cc:
In case of database level grant the database name may be a pattern,
in case of table|column level grant the database name can not be a pattern.
We use 'dont_check_global_grants' as a flag to determine
if it's database level grant command
(see SQLCOM_GRANT case, mysql_execute_command() function) and
set db_is_pattern according to 'dont_check_global_grants' value.
into quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/maint/jun05/50
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/t/mysqltest.test:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
into pilot.blaudden:/home/msvensson/mysql/mysql-5.0-maint
libmysql/libmysql.c:
Auto merged
sql-common/client.c:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/net_serv.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_repl.cc:
Auto merged
- The "mysql client in mysqld"(which is used by
replication and federated) should use alarms instead of setting
socket timeout value if the rest of the server uses alarm. By
always calling 'my_net_set_write_timeout'
or 'my_net_set_read_timeout' when changing the timeout value(s), the
selection whether to use alarms or timeouts will be handled by
ifdef's in those two functions.
- Move declaration of 'vio_timeout' into "vio_priv.h"
include/mysql_com.h:
Move the net_set_*_timeout function declarations to mysql_com.h and
rename to my_net_set_*_timeout to avoid name clashes
include/violite.h:
Move declaration of 'vio_timeout' to vio_priv.h (to make
the function as private as possible)
libmysql/libmysql.c:
Use my_net_read_timeout or my_net_write_timeout when setting
the timeouts. Move the global variables for my_net_read/my_write_timeout
into the only place where they are used. Thus removing them...
server-tools/instance-manager/mysql_connection.cc:
Use my_net_read_timeout or my_net_write_timeout when setting the timeouts
sql-common/client.c:
Use my_net_read_timeout or my_net_write_timeout when setting the timeouts
sql/mysql_priv.h:
Move the net_set_*_timeout function declarations to mysql_com.h
sql/net_serv.cc:
No need to cast the net->write_timeout value from "uint" to "uint"
sql/set_var.cc:
Rename net_set_*_timeout to my_net_set_*_timeout
sql/sql_client.cc:
Use my_net_read_timeout or my_net_write_timeout when setting the timeouts
sql/sql_parse.cc:
Rename net_set_*_timeout to my_net_set_*_timeout
sql/sql_repl.cc:
Rename net_set_*_timeout to my_net_set_*_timeout
vio/vio_priv.h:
Move declaration of 'vio_timeout' to vio_priv.h
vio/viosocket.c:
Cleanup 'vio_timeout'
- Use "const void*" on POSIX and "const char*" on windows for
setsockopt
- Add DBUG_PRINT's
- Add comment about why we don't have an implementation of
vio_timeout for platforms not supporting SO_SNDTIMEO or SO_RCVTIMEO
Bug #23667 "CREATE TABLE LIKE is not isolated from alteration
by other connections"
Bug #18950 "CREATE TABLE LIKE does not obtain LOCK_open"
As well as:
Bug #25578 "CREATE TABLE LIKE does not require any privileges
on source table".
The first and the second bugs resulted in various errors and wrong
binary log order when one tried to execute concurrently CREATE TABLE LIKE
statement and DDL statements on source table or DML/DDL statements on its
target table.
The problem was caused by incomplete protection/table-locking against
concurrent statements implemented in mysql_create_like_table() routine.
We solve it by simply implementing such protection in proper way (see
comment for sql_table.cc for details).
The third bug allowed user who didn't have any privileges on table create
its copy and therefore circumvent privilege check for SHOW CREATE TABLE.
This patch solves this problem by adding privilege check, which was missing.
Finally it also removes some duplicated code from mysql_create_like_table().
Note that, altough tests covering concurrency-related aspects of CREATE TABLE
LIKE behaviour will only be introduced in 5.1, they were run manually for
this patch as well.
mysql-test/r/grant2.result:
Added test for bug#25578 "CREATE TABLE LIKE does not require any privileges
on source table".
mysql-test/t/grant2.test:
Added test for bug#25578 "CREATE TABLE LIKE does not require any privileges
on source table".
sql/handler.h:
Introduced new flag for HA_CREATE_INFO::options in order to be able to
distinguish CREATE TABLE ... LIKE from other types of CREATE TABLE.
sql/mysql_priv.h:
mysql_create_like_table() now takes source table name not as a
Table_ident object but as regular table list element.
sql/sql_parse.cc:
CREATE TABLE ... LIKE implementation now uses statement's table list
for storing information about the source table. We also use flag
in LEX::create_info.options for distinguishing it from other types
of CREATE TABLE.
Finally CREATE TABLE ... LIKE now requires the same privileges on
the source tables as SHOW CREATE TABLE. Moved this privilege check
to check_show_create_table_access() function.
sql/sql_table.cc:
mysql_create_like_table():
- Provided proper protection from concurrent statements.
This is achieved by keeping name-lock on the source table and holding
LOCK_open mutex during whole operation. This gives protection against
concurrent DDL on source table. Also holding this mutex makes copying
of .frm file, call to ha_create_table() and binlogging atomic against
concurrent DML and DDL operations on target table.
- Get rid of duplicated code related to source database/table name
handling. All these operations are already done in
st_select_lex::add_table_to_list(), so we achieve the same effect
by including source table into the statement's table list.
sql/sql_yacc.yy:
Now we use special flag in LEX::create_info::options for distinguishing
CREATE TABLE ... LIKE from other types of CREATE TABLE and store name
of source table as regular element in statement's table list.
into vajra.(none):/opt/local/work/mysql-5.0-runtime
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
Bug #20662 "Infinite loop in CREATE TABLE IF NOT EXISTS ... SELECT
with locked tables"
Bug #20903 "Crash when using CREATE TABLE .. SELECT and triggers"
Bug #24738 "CREATE TABLE ... SELECT is not isolated properly"
Bug #24508 "Inconsistent results of CREATE TABLE ... SELECT when
temporary table exists"
Deadlock occured when one tried to execute CREATE TABLE IF NOT
EXISTS ... SELECT statement under LOCK TABLES which held
read lock on target table.
Attempt to execute the same statement for already existing
target table with triggers caused server crashes.
Also concurrent execution of CREATE TABLE ... SELECT statement
and other statements involving target table suffered from
various races (some of which might've led to deadlocks).
Finally, attempt to execute CREATE TABLE ... SELECT in case
when a temporary table with same name was already present
led to the insertion of data into this temporary table and
creation of empty non-temporary table.
All above problems stemmed from the old implementation of CREATE
TABLE ... SELECT in which we created, opened and locked target
table without any special protection in a separate step and not
with the rest of tables used by this statement.
This underminded deadlock-avoidance approach used in server
and created window for races. It also excluded target table
from prelocking causing problems with trigger execution.
The patch solves these problems by implementing new approach to
handling of CREATE TABLE ... SELECT for base tables.
We try to open and lock table to be created at the same time as
the rest of tables used by this statement. If such table does not
exist at this moment we create and place in the table cache special
placeholder for it which prevents its creation or any other usage
by other threads.
We still use old approach for creation of temporary tables.
Also note that we decided to postpone introduction of some tests
for concurrent behaviour of CREATE TABLE ... SELECT till 5.1.
The main reason for this is absence in 5.0 ability to set @@debug
variable at runtime, which can be circumvented only by using several
test files with individual .opt files. Since the latter is likely
to slowdown test-suite unnecessary we chose not to push this tests
into 5.0, but run them manually for this version and later push
their optimized version into 5.1
mysql-test/r/create.result:
Extended test coverage for CREATE TABLE ... SELECT. In particular added
tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
when temporary table exists" and bug #20662 "Infinite loop in CREATE
TABLE IF NOT EXISTS ... SELECT with locked tables".
mysql-test/r/trigger.result:
Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
and triggers"
mysql-test/t/create.test:
Extended test coverage for CREATE TABLE ... SELECT. In particular added
tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
when temporary table exists" and bug #20662 "Infinite loop in CREATE
TABLE IF NOT EXISTS ... SELECT with locked tables".
mysql-test/t/trigger.test:
Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
and triggers"
sql/lock.cc:
Now for creation of name-lock placeholder in lock_table_name() we use
auxiliary function table_cache_insert_placeholder().
sql/mysql_priv.h:
Made build_table_path() function available outside of sql_table.cc file.
reopen_name_locked_table() now has 3rd argument which controls linking
in of table being opened into THD::open_tables (this is useful in
cases when placeholder used for name-locking is already linked into
this list).
Added declaration of auxiliary function table_cache_insert_placeholder()
which is used for creation of table placeholders for name-locking.
Added declaration of table_cache_has_open_placeholder() function which
can be used for checking if table cache contains an open placeholder for
the table and if this placeholder was created by another thread.
(This function is needed only in 5.0 where we use it in various versions
of CREATE TABLE in order to protect it from concurrent CREATE TABLE
... SELECT operations for the table. Starting from 5.1 we use different
approach so it is going to be removed there).
Made close_old_data_files() static within sql_base.cc file.
Added auxiliary drop_open_table() routine.
Moved declaration of refresh_version to table.h header to make it
accessible from inline methods of TABLE class.
MYSQL_OPEN_IGNORE_LOCKED_TABLES flag is no longer used. Instead
MYSQL_OPEN_TEMPORARY_ONLY option was added.
sql/sql_base.cc:
Added support for the new approach to the handling of CREATE TABLE
... SELECT for base tables.
Now we try to open and lock table to be created at the same time as
the rest of tables used by this statement. If such table does not
exist at this moment we create and place in the table cache special
placeholder for it which prevents its creation or any other usage
by other threads.
Note significant distinctions of this placeholder from the placeholder
used for normal name-lock: 1) It is treated like open table by other
name-locks so it does not allow name-lock taking operations like DROP
TABLE or RENAME TABLE to proceed. 2) it is linked into THD::open_tables
list and automatically removed during close_thread_tables() call.
open_tables():
Implemented logic described above. To do this added
auxiliary check_if_table_exists() function.
Removed support for MYSQL_OPEN_IGNORE_LOCKED_TABLES option
which is no longer used.
Added MYSQL_OPEN_TEMPORARY_ONLY which is used to restrict
search for temporary tables only.
close_cached_tables()/close_thread_table()/reopen_tables()/
close_old_data_files()/table_is_used()/remove_table_from_cache():
Added support for open placeholders (note that we also use them
when we need to re-open tables during flush).
Added auxiliary drop_open_table() routine.
reopen_name_locked_table():
Now has 3rd argument which controls linking in of table being
opened into THD::open_tables (this is useful in cases when
placeholder used for name-locking is already linked into
this list).
Added auxiliary table_cache_insert_placeholder() routine which
simplifies creation of placeholders used for name-locking.
Added table_cache_has_open_placeholder() function which can be
used for checking if table cache contains an open placeholder for
the table and if this placeholder was created by another thread.
(This function is needed only in 5.0 where we use it in various versions
of CREATE TABLE in order to protect it from concurrent CREATE TABLE
... SELECT operations for the table. Starting from 5.1 we use different
approach so it is going to be removed there).
sql/sql_handler.cc:
Adjusted mysql_ha_mark_tables_for_reopen() routine to properly
handle placeholders which now can be linked into open tables
list.
sql/sql_insert.cc:
Introduced new approach to handling of base tables in CREATE TABLE
... SELECT statement.
Now we try to open and lock table to be created at the same time as
the rest of tables used by this statement. If such table does not
exist at this moment we create and place in the table cache special
placeholder for it which prevents its creation or any other usage
by other threads. By doing this we avoid races which existed with
previous approach in which we created, opened and locked target in
separate step without any special protection.
This also allows properly calculate prelocking set in cases when
target table already exists and has some on insert triggers.
Note that we don't employ the same approach for temporary tables
(this is okay as such tables are unaffected by other threads).
Changed create_table_from_items() and select_create methods to
implement this approach.
sql/sql_parse.cc:
The new approach to handling of CREATE TABLE ... SELECT for
base tables assumes that all tables (including table to be
created) are opened and (or) locked at the same time.
So in cases when we create base table we have to pass to
open_and_lock_tables() table list which includes target table.
sql/sql_prepare.cc:
The new approach to handling of CREATE TABLE ... SELECT for
base tables assumes that all tables (including table to be
created) are opened and (or) locked at the same time.
So in cases when we create base table we have to pass to
open_and_lock_tables() table list which includes target table.
sql/sql_table.cc:
Now mysql_create_table_internal(), mysql_create_like_table() and
mysql_alter_table() not only check that destination table doesn't
exist on disk but also check that there is no create placeholder
in table cache for it (i.e. there is no CREATE TABLE ... SELECT
operation in progress for it). Note that starting from 5.1 we
use different approach in order to to protect CREATE TABLE ... SELECT
from concurrent CREATE TABLE (ALTER TABLE ... RENAME) operations,
the latter simply take name-locks on table before its creation
(on target table name before renaming).
Also made build_table_path() available from other files and
asjusted calls to reopen_name_locked_table(), which now takes
extra argument, which controls linking of open table into
THD::open_tables list.
sql/sql_trigger.cc:
reopen_name_locked_tables() now has one more argument which controls
linking of opened table into the THD::open_tables list.
sql/sql_yacc.yy:
The new approach to handling of CREATE TABLE ... SELECT statement
for base tables assumes that all tables including table to be
created are open and (or) locked at the same time. Therefore
we need to set correct lock for target table.
sql/table.h:
Moved declaration of refresh_version variable from mysql_priv.h
to make it accessible from inline methods of TABLE class.
Renamed TABLE::locked_by_flush member to open_placeholder since
now it is also used for taking exclusive name-lock and not only
by flush.
Introduced TABLE::is_name_opened() helper method which can be used
to distinguish TABLE instances corresponding to open tables or
placeholders for them from closed instances (e.g. due to their old
version). Also introduced TABLE::needs_reopen_or_name_lock() helper
which allows to check if TABLE instance corresponds to outdated
version of table or to name-lock placeholder.
Introduced TABLE_LIST::create member which marks elements of
table list corresponds to the table to be created.
Adjusted TABLE_LIST::placeholder() method to take into account
name-lock placeholders for tables to be created (this, for example,
allows to properly handle such placeholders in lock_tables()).
allow select into out file from I_S if user has FILE privilege
otherwise issue an error
mysql-test/r/outfile.result:
test result
mysql-test/t/outfile.test:
test case
sql/sql_parse.cc:
allow select into out file from I_S if user has FILE privilege
otherwise issue an error
into weblab.(none):/home/marcsql/TREE/mysql-5.0-rt-merge
mysql-test/t/sp.test:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
