client/mysqldump.c:
A post-merge fix - 'sock' was renamed to 'mysql'
mysql-test/r/events_bugs.result:
A post merge fix: now we strip rear comments from the query before
it gets into the log.
mysql-test/r/func_group.result:
A post merge fix: default clause is now printed uppercase.
mysql-test/r/im_life_cycle.result:
Fix my mistake in manual resolve.
mysql-test/r/mysqlcheck.result:
use test; - after we drop client_test_db there is no current database.
This cleanup is present in 5.1 only, but the test that was added in
5.0 assumes there is a current database, test.
mysql-test/r/mysqldump.result:
Ignore results of execution of mysqldump: we can't rely on
MASTER_LOG_POS in test results, it's different for statement
and row level logging.
mysql-test/r/mysqlshow.result:
A post-merge fix: information schema contains a few more tables
in 5.1
mysql-test/r/mysqltest.result:
A post merge fix: add 5.1 test end separator.
mysql-test/r/ndb_basic.result:
A post-merge fix: add test end separators.
mysql-test/r/rpl_switch_stm_row_mixed.result:
A post merge fix: length of varbinary column is now 3 times less.
Assuming a side effect of some other change. Length of any
field is not relevant in this test.
mysql-test/r/rpl_view.result:
Add an end of test marker.
mysql-test/r/show_check.result:
Remove duplicate results. Add results from a merged test case.
mysql-test/r/sp-error.result:
Add test end separators.
mysql-test/r/sp-security.result:
Post-merge fix: use test after the current database is dropped.
mysql-test/r/sp.result:
Remove a duplicate result (bad merge that left a copy of
the test case for Bug#19862 in the test suite).
mysql-test/r/strict.result:
An after-merge fix for a new test case: in 5.1 we issue a more accurate
error message: "Incorrect value" instead of "Truncated value". I reason
it so that in case of an error nothing is truncated, really.
Also found similar changes in other test cases.
mysql-test/r/type_datetime.result:
Fix the text of an error.
mysql-test/r/union.result:
A post-merge fix: CHARACTER SET is now uppercase.
mysql-test/t/mysqlcheck.test:
A post-merge fix: use test, after current database is dropped, there
is no current database.
mysql-test/t/mysqldump.test:
Disable result log: it's dependent on binlog position.
mysql-test/t/sp-security.test:
use test
sql/item_sum.cc:
Adjust the call to the constructor after the merge.
sql/sp_head.cc:
Add a missing DBUG_VOID_RETURN, move security checks out of
execute_trigger to Table_triggers_list: in 5.1 we check for
TRIGGER privilege, not SUPER privilege to execute triggers, so these
checks lack table context inside execute_trigger and have to be
performed when we have table object on hand.
sql/sql_db.cc:
A post-merge fix: adjust load_db_opt_by_name and check_db_dir_existence
(new functions added in 5.0) to be tablename-to-filename encoding
friendly.
sql/sql_lex.cc:
A post-merge fix: make skip_rear_comments operate on const uchar *s.
sql/sql_lex.h:
A post-merge fix.
sql/sql_show.cc:
A post-merge fix: fix a bad merge, rename orig_sql_command -> sql_command.
sql/sql_trigger.cc:
A post-merge fix: move security checks to process_triggers
from execute_trigger.
sql/sql_view.cc:
Adjust to the new signature of skip_rear_comments.
sql/sql_yacc.yy:
Adjust to the new signature of init_strings.
into bodhi.local:/opt/local/work/mysql-5.1-runtime-merge
BitKeeper/etc/ignore:
auto-union
BitKeeper/deleted/.del-im_options_set.result~59278f56be61d921:
Auto merged
BitKeeper/deleted/.del-mysqld.dsp~ffdbf2d234e23e56:
Auto merged
BitKeeper/deleted/.del-mysys.dsp~32695fee91189326:
Auto merged
BitKeeper/deleted/.del-im_options_set.imtest~b53d9d60e5684833:
Auto merged
BitKeeper/deleted/.del-im_options_unset.imtest~768eb186b51d0048:
Auto merged
BitKeeper/deleted/.del-im_options_unset.result~20a4790cd3c70a4f:
Auto merged
client/mysql.cc:
Auto merged
client/mysqlbinlog.cc:
Auto merged
client/mysqlcheck.c:
Auto merged
client/mysqldump.c:
Auto merged
client/mysqltest.c:
Auto merged
dbug/dbug.c:
Auto merged
extra/perror.c:
Auto merged
extra/yassl/src/yassl_imp.cpp:
Auto merged
extra/yassl/src/yassl_int.cpp:
Auto merged
include/mysql.h:
Auto merged
include/mysql_com.h:
Auto merged
libmysql/libmysql.c:
Auto merged
mysql-test/r/cast.result:
Auto merged
mysql-test/r/date_formats.result:
Auto merged
mysql-test/r/federated.result:
Auto merged
mysql-test/r/func_compress.result:
Auto merged
mysql-test/r/func_group.result:
Auto merged
mysql-test/r/func_time.result:
Auto merged
mysql-test/r/gis-rtree.result:
Auto merged
mysql-test/r/gis.result:
Auto merged
mysql-test/r/im_daemon_life_cycle.result:
Auto merged
mysql-test/r/im_utils.result:
Auto merged
mysql-test/r/join_outer.result:
Auto merged
mysql-test/r/mysqlcheck.result:
Auto merged
mysql-test/r/rpl_sp.result:
Auto merged
mysql-test/r/rpl_trigger.result:
Auto merged
mysql-test/r/sp-code.result:
Auto merged
mysql-test/r/sp-security.result:
Auto merged
mysql-test/r/strict.result:
Auto merged
mysql-test/r/type_blob.result:
Auto merged
mysql-test/r/type_datetime.result:
Auto merged
mysql-test/r/type_ranges.result:
Auto merged
mysql-test/r/udf.result:
Auto merged
mysql-test/r/user_var.result:
Auto merged
mysql-test/t/cast.test:
Auto merged
mysql-test/t/disabled.def:
Auto merged
mysql-test/t/func_group.test:
Auto merged
mysql-test/t/func_time.test:
Auto merged
mysql-test/t/im_daemon_life_cycle.imtest:
Auto merged
mysql-test/t/im_life_cycle.imtest:
Auto merged
mysql-test/t/im_utils.imtest:
Auto merged
mysql-test/t/mysql.test:
Auto merged
mysql-test/t/mysqlbinlog.test:
Auto merged
mysql-test/t/mysqlcheck.test:
Auto merged
mysql-test/t/ps.test:
Auto merged
mysql-test/t/rpl_trigger.test:
Auto merged
mysql-test/t/sp-security.test:
Auto merged
mysql-test/t/strict.test:
Auto merged
mysql-test/t/udf.test:
Auto merged
sql/field.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/item_strfunc.h:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/item_sum.h:
Auto merged
sql/item_timefunc.cc:
Auto merged
sql/mysqld.cc:
Auto merged
sql/protocol.cc:
Auto merged
sql/slave.cc:
Auto merged
sql/sp.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_udf.cc:
Auto merged
sql/sql_view.cc:
Auto merged
sql/table.cc:
Auto merged
sql-common/client.c:
Auto merged
sql-common/my_time.c:
Auto merged
sql/table.h:
Auto merged
storage/ndb/src/kernel/error/ndbd_exit_codes.c:
Auto merged
storage/ndb/src/mgmsrv/ConfigInfo.cpp:
Auto merged
mysql-test/r/im_life_cycle.result:
e
use local
mysql-test/r/ps.result:
use local
client/Makefile.am:
Manual merge.
client/mysqlimport.c:
Manual merge.
configure.in:
Manual merge.
mysql-test/mysql-test-run.pl:
Manual merge.
mysql-test/r/mysqldump.result:
Manual merge.
mysql-test/r/mysqltest.result:
Manual merge.
mysql-test/r/ndb_basic.result:
Manual merge.
mysql-test/r/rpl_view.result:
Manual merge.
mysql-test/r/show_check.result:
Manual merge.
mysql-test/r/sp-error.result:
Manual merge.
mysql-test/r/sp.result:
Manual merge.
mysql-test/r/union.result:
Manual merge.
mysql-test/t/mysqldump.test:
Manual merge.
mysql-test/t/mysqltest.test:
Manual merge.
mysql-test/t/ndb_basic.test:
Manual merge.
mysql-test/t/rpl_sp.test:
Manual merge.
mysql-test/t/rpl_view.test:
Manual merge.
mysql-test/t/show_check.test:
Manual merge.
mysql-test/t/sp-error.test:
Manual merge.
mysql-test/t/sp.test:
Manual merge.
sql/item_sum.cc:
Manual merge.
sql/mysql_priv.h:
Manual merge.
sql/sp_head.cc:
Manual merge.
sql/sql_db.cc:
Manual merge.
sql/sql_delete.cc:
Manual merge.
sql/sql_lex.h:
Manual merge.
sql/sql_show.cc:
Manual merge.
sql/sql_table.cc:
Manual merge.
sql/sql_trigger.cc:
Manual merge.
sql/sql_yacc.yy:
Manual merge.
tests/mysql_client_test.c:
Manual merge.
into chilla.local:/home/mydev/mysql-5.1-bug18775
sql/ha_myisam.cc:
Auto merged
sql/ha_myisammrg.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_delete.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_trigger.cc:
Auto merged
sql/sql_view.cc:
Auto merged
sql/table.cc:
Auto merged
sql/sql_db.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Manual merge
Continued implementation of WL#1324 (table name to filename encoding)
The intermediate (not temporary) files of the new table
during ALTER TABLE was visible for SHOW TABLES. These
intermediate files are copies of the original table with
the changes done by ALTER TABLE. After all the data is
copied over from the original table, these files are renamed
to the original tables file names. So they are not temporary
files. They persist after ALTER TABLE, but just with another
name.
In 5.0 the intermediate files are invisible for SHOW TABLES
because all file names beginning with "#sql" were suppressed.
This failed since 5.1.6 because even temporary table names were
converted when making file names from them. The prefix became
converted to "@0023sql". Converting the prefix during SHOW TABLES
would suppress the listing of user tables that start with "#sql".
The solution of the problem is to continue the implementation of
the table name to file name conversion feature. One requirement
is to suppress the conversion for temporary table names.
This change is straightforward for real temporary tables as there
is a function that creates temporary file names.
But the generated path names are located in TMPDIR and have no
relation to the internal table name. This cannot be used for
ALTER TABLE. Its intermediate files need to be in the same
directory as the old table files. And it is necessary to be
able to deduce the same path from the same table name repeatedly.
Consequently the intermediate table files must be handled like normal
tables. Their internal names shall start with tmp_file_prefix
(#sql) and they shall not be converted like normal table names.
I added a flags parameter to all relevant functions that are
called from ALTER TABLE. It is used to suppress the conversion
for the intermediate table files.
The outcome is that the suppression of #sql in SHOW TABLES
works again. It does not suppress user tables as these are
converted to @0023sql on file level.
This patch does also fix ALTER TABLE ... RENAME, which could not
rename a table with non-ASCII characters in its name.
It does also fix the problem that a user could create a table like
`#sql-xxxx-yyyy`, where xxxx is mysqld's pid and yyyy is the thread
ID of some other thread, which prevented this thread from running
ALTER TABLE.
Some of the above problems are mentioned in Bug 1405, which can
be closed with this patch.
This patch does also contain some minor fixes for other forgotten
conversions. Still known problems are reported as bugs 21370,
21373, and 21387.
mysql-test/r/alter_table.result:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test results.
mysql-test/r/backup.result:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test results.
mysql-test/r/repair.result:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test results.
mysql-test/t/alter_table.test:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test cases.
mysql-test/t/backup.test:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added test cases.
mysql-test/t/repair.test:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added a test case.
sql/ha_myisam.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added missing table name mapping calls to backup() and restore().
sql/ha_myisammrg.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/ha_ndbcluster.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/ha_ndbcluster_binlog.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/ha_ndbcluster_binlog.h:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Removed unnecessary check for wrong temp file prefix.
sql/mysql_priv.h:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Extended quick_rm_table(), mysql_rename_table(), and
build_table_filename() by an flags argument, which can indicate
temporary table names that should not be converted.
Added symbolic flag values.
sql/sql_acl.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_base.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Fixed a comment.
Added DBUG calls.
sql/sql_db.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_delete.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_insert.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_partition.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_rename.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_show.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Reverted the former fix for this bug. tmp_file_prefix is now used
verbatim in the comparison of file names.
sql/sql_table.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added a check for a tmp_file_prefix file name to
filename_to_tablename(). These names are now accepted without
conversion.
Extended quick_rm_table(), mysql_rename_table(), and
build_table_filename() by an flags argument, which can indicate
temporary table names that should not be converted.
Removed the table to file name conversion from
build_tmptable_filename().
Disabled REPAIR TABLE ... USE_FRM for temporary tables.
Added the forgotten conversion to mysql_alter_table() for the case
of ALTER TABLE ... RENAME.
Added comments and DBUG calls.
sql/sql_trigger.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/sql_view.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Added an zero argument for the new 'flags' parameter.
sql/table.cc:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Replaced a literal ".frm" by reg_ext.
Added DBUG calls.
storage/innobase/row/row0mysql.c:
Bug#18775 - Temporary table from alter table visible to other threads
Continued implementation of WL#1324 (table name to filename encoding)
Changed back the encoded temp file prefix to #sql.
Continued implementation of WL#1324 (table name to filename encoding)
The intermediate (not temporary) files of the new table
during ALTER TABLE was visible for SHOW TABLES. These
intermediate files are copies of the original table with
the changes done by ALTER TABLE. After all the data is
copied over from the original table, these files are renamed
to the original tables file names. So they are not temporary
files. They persist after ALTER TABLE, but just with another
name.
In 5.0 the intermediate files are invisible for SHOW TABLES
because all file names beginning with "#sql" were suppressed.
This failed since 5.1.6 because even temporary table names were
converted when making file names from them. The prefix became
converted to "@0023sql". Converting the prefix during SHOW TABLES
would suppress the listing of user tables that start with "#sql".
The solution of the problem is to continue the implementation of
the table name to file name conversion feature. One requirement
is to suppress the conversion for temporary table names.
This change is straightforward for real temporary tables as there
is a function that creates temporary file names.
But the generated path names are located in TMPDIR and have no
relation to the internal table name. This cannot be used for
ALTER TABLE. Its intermediate files need to be in the same
directory as the old table files. And it is necessary to be
able to deduce the same path from the same table name repeatedly.
Consequently the intermediate table files must be handled like normal
tables. Their internal names shall start with tmp_file_prefix
(#sql) and they shall not be converted like normal table names.
I added a flags parameter to all relevant functions that are
called from ALTER TABLE. It is used to suppress the conversion
for the intermediate table files.
The outcome is that the suppression of #sql in SHOW TABLES
works again. It does not suppress user tables as these are
converted to @0023sql on file level.
This patch does also fix ALTER TABLE ... RENAME, which could not
rename a table with non-ASCII characters in its name.
It does also fix the problem that a user could create a table like
`#sql-xxxx-yyyy`, where xxxx is mysqld's pid and yyyy is the thread
ID of some other thread, which prevented this thread from running
ALTER TABLE.
Some of the above problems are mentioned in Bug 1405, which can
be closed with this patch.
This patch does also contain some minor fixes for other forgotten
conversions. Still known problems are reported as bugs 21370,
21373, and 21387.
Fix for BUG#16676: Database CHARSET not used for stored procedures
The problem in BUG#16211 is that CHARSET-clause of the return type for
stored functions is just ignored.
The problem in BUG#16676 is that if character set is not explicitly
specified for sp-variable, the server character set is used instead
of the database one.
The fix has two parts:
- always store CHARSET-clause of the return type along with the
type definition in mysql.proc.returns column. "Always" means that
CHARSET-clause is appended even if it has not been explicitly
specified in CREATE FUNCTION statement (this affects BUG#16211 only).
Storing CHARSET-clause if it is not specified is essential to avoid
changing character set if the database character set is altered in
the future.
NOTE: this change is not backward compatible with the previous releases.
- use database default character set if CHARSET-clause is not explicitly
specified (this affects both BUG#16211 and BUG#16676).
NOTE: this also breaks backward compatibility.
mysql-test/r/mysqldump.result:
Updated result file.
mysql-test/r/sp.result:
Updated result file.
mysql-test/t/sp.test:
Provided test cases for BUG#16211, BUG#16676.
sql/mysql_priv.h:
Added two convenient functions for work with databases.
sql/sp.cc:
1. Add CHARSET-clause to CREATE-statement if it has been explicitly specified.
2. Polishing -- provided some comments.
sql/sp_head.cc:
Use database charset as default charset of sp-variable.
sql/sp_head.h:
Move init_sp_name() out of init_strings().
sql/sql_db.cc:
Two new functions created:
- load_db_opt_by_name();
- check_db_dir_existence();
sql/sql_show.cc:
Eliminate duplicated code by using
check_db_dir_existence() and load_db_opt_by_name()
sql/sql_table.cc:
Eliminate duplicated code by using
check_db_dir_existence() and load_db_opt_by_name()
sql/sql_yacc.yy:
Call sp_head::init_sp_name() to initialize stored routine name.
Fix for BUG#16676: Database CHARSET not used for stored procedures
The problem in BUG#16211 is that CHARSET-clause of the return type for
stored functions is just ignored.
The problem in BUG#16676 is that if character set is not explicitly
specified for sp-variable, the server character set is used instead
of the database one.
The fix has two parts:
- always store CHARSET-clause of the return type along with the
type definition in mysql.proc.returns column. "Always" means that
CHARSET-clause is appended even if it has not been explicitly
specified in CREATE FUNCTION statement (this affects BUG#16211 only).
Storing CHARSET-clause if it is not specified is essential to avoid
changing character set if the database character set is altered in
the future.
NOTE: this change is not backward compatible with the previous releases.
- use database default character set if CHARSET-clause is not explicitly
specified (this affects both BUG#16211 and BUG#16676).
NOTE: this also breaks backward compatibility.
into bodhi.local:/opt/local/work/mysql-5.1-runtime-merge-5.0
include/my_sys.h:
Auto merged
mysql-test/r/auto_increment.result:
Auto merged
mysql-test/r/func_math.result:
Auto merged
mysql-test/r/func_system.result:
Auto merged
mysql-test/r/func_time.result:
Auto merged
mysql-test/r/information_schema.result:
Auto merged
mysql-test/r/query_cache.result:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/r/trigger.result:
Auto merged
mysql-test/r/type_blob.result:
Auto merged
mysql-test/r/variables.result:
Auto merged
mysql-test/r/view.result:
Auto merged
mysql-test/t/trigger.test:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/log.cc:
Auto merged
sql/slave.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_trigger.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
storage/ndb/src/kernel/blocks/dbdict/Dbdict.hpp:
Auto merged
storage/ndb/src/mgmsrv/ConfigInfo.cpp:
Auto merged
sql/slave.h:
SCCS merged
mysql-test/r/show_check.result:
Manual merge.
mysql-test/t/show_check.test:
Manual merge.
sql/log_event.cc:
Manual merge.
sql/share/errmsg.txt:
Manual merge.
sql/sql_class.h:
Manual merge.
sql/sql_db.cc:
Manual merge.
BitKeeper/etc/ignore:
auto-union
mysql-test/r/events_logs_tests.result:
Auto merged
mysql-test/t/events_logs_tests.test:
Auto merged
mysql-test/t/events_stress.test:
Auto merged
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/share/errmsg.txt:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/event_data_objects.cc:
manual merge
sql/events.cc:
manual merge
No test case as the bug is in an existing test case (rpl_trigger.test
when it is run under valgrind).
The warning was caused by memory corruption in replication slave: thd->db
was pointing at a stack address that was previously used by
sp_head::execute()::old_db. This happened because mysql_change_db
behaved differently in replication slave and did not make a copy of the
argument to assign to thd->db.
The solution is to always free the old value of thd->db and allocate a new
copy, regardless whether we're running in a replication slave or not.
sql/log_event.cc:
Move rewrite_db to log_event.cc, the only place where it is used.
sql/slave.cc:
Move rewrite_db to log_event.cc
sql/slave.h:
Remove an unneeded declaration.
sql/sql_class.h:
Fix set_db to always free the old db, even if the argument is NULL.
Add a comment.
sql/sql_db.cc:
Always make a deep copy of the argument in mysql_change_db, even
if running in a replication slave. This is necessary because
sp_use_new_db (stored procedures) assumes that mysql_change_db always makes
a deep copy of the argument, and thus passes a pointer to stack into it.
This assumption was true for all cases except the replication slave thread.
No test case as the bug is in an existing test case (rpl_trigger.test
when it is run under valgrind).
The warning was caused by memory corruption in replication slave: thd->db
was pointing at a stack address that was previously used by
sp_head::execute()::old_db. This happened because mysql_change_db
behaved differently in replication slave and did not make a copy of the
argument to assign to thd->db.
The solution is to always free the old value of thd->db and allocate a new
copy, regardless whether we're running in a replication slave or not.
5th cut, moved DB related code to Event_db_repository and
updated accordingly the remanining code.
Moved change/restore_security_context() to class THD
Removed events_priv.h
Next step is to reorganize create/update_event() and parsing for them.
But probably some other refactoring could be done in the meanwhile.
The changes so far pass the test suite.
BitKeeper/deleted/.del-events_priv.h~2e8bce2cf35997df:
Delete: sql/events_priv.h
sql/Makefile.am:
events_priv.h is no more
sql/event_data_objects.cc:
reorganize events code
sql/event_data_objects.h:
reorganize events code
sql/event_db_repository.cc:
reorganize events code
sql/event_db_repository.h:
reorganize events code
sql/event_scheduler.cc:
reorganize events code
sql/event_scheduler.h:
reorganize events code
sql/events.cc:
reorganize events code
sql/events.h:
reorganize events code
sql/mysqld.cc:
reorganize events code
sql/set_var.cc:
reorganize events code
sql/sql_class.cc:
add ::change_security_context() and restore_security_context()
sql/sql_class.h:
add ::change_security_context() and restore_security_context()
sql/sql_db.cc:
reorganize Events code
sql/sql_parse.cc:
reorganize Events code
sql/sql_show.cc:
reorganize Events code
5th cut, moved DB related code to Event_db_repository and
updated accordingly the remanining code.
Moved change/restore_security_context() to class THD
Removed events_priv.h
Next step is to reorganize create/update_event() and parsing for them.
But probably some other refactoring could be done in the meanwhile.
The changes so far pass the test suite.
into mysql.com:/opt/local/work/mysql-5.0-17199
mysql-test/r/create.result:
Auto merged
mysql-test/t/create.test:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/log_event.cc:
Auto merged
sql/slave.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
mysql-test/r/sp.result:
SCCS merged
mysql-test/t/sp.test:
SCCS merged
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
BitKeeper/etc/ignore:
auto-union
libmysqld/Makefile.am:
Auto merged
sql/Makefile.am:
Auto merged
sql/events.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/time.cc:
Auto merged
Unify method naming -> create/update/drop_event
Move class Event_timed to event_timed.h
class Events is in events.h (renamed from event.h)
The implementation is in events.cc (renamed from event.h)
BitKeeper/deleted/.del-event_executor.cc~f4a4645b973838ab:
Delete: sql/event_executor.cc
include/my_time.h:
add a boundary
libmysqld/CMakeLists.txt:
event.cc -> events.cc
libmysqld/Makefile.am:
event.cc -> event.cc
sql/CMakeLists.txt:
event.cc -> events.cc
sql/Makefile.am:
event.cc -> events.cc
event_priv.h -> events_priv.h
sql/event_scheduler.cc:
event.h -> events.h
add_event -> create_event
replace_event -> update_event()
event_timed_compare_q is only used in event_scheduler.cc , so moving it
from event.cc and making it static
sql/event_scheduler.h:
add_event -> create_event
replace_event -> update_event
sql/event_timed.cc:
moved extern interval_type_to_name to mysql_priv.h
sql/mysql_priv.h:
moved my_time_compare to time.cc
sql/mysqld.cc:
event.h -> events.h
sql/sql_db.cc:
event.h -> events.h
sql/sql_parse.cc:
event.h -> events.h
class Event_timed moved to event_timed.h
sql/sql_show.cc:
event.h -> events.h
class Event_timed moved to event_timed.h
sql/sql_yacc.yy:
event.h -> events.h
class Event_timed moved to event_timed.h
sql/events.cc:
add_event -> create_event
replace_event -> update_event
event_timed_compare_q moved to event_scheduler.cc
sql/events.h:
class Event_timed moved to event_timed.h
sql/events_priv.h:
my_time_compare moved to mysql_priv.h
event_timed_compare_q is static in event_scheduler.cc
sql/time.cc:
moved interval_type_to_name from event.cc to here.
BitKeeper/etc/ignore:
Added libmysqld/events.cc to the ignore list
Unify method naming -> create/update/drop_event
Move class Event_timed to event_timed.h
class Events is in events.h (renamed from event.h)
The implementation is in events.cc (renamed from event.h)
into mysql.com:/home/mydev/mysql-5.1-amerge
sql/sql_db.cc:
Auto merged
storage/myisam/mi_check.c:
Auto merged
storage/myisam/myisamdef.h:
Auto merged
mysql-test/r/lock_multi.result:
Manual merge of team tree
mysql-test/t/lock_multi.test:
Manual merge of team tree
into mysql.com:/home/mydev/mysql-5.1-bug19815
mysql-test/r/lock_multi.result:
Auto merged
mysql-test/t/lock_multi.test:
Auto merged
sql/sql_db.cc:
SCCS merged
The order of acquiring LOCK_mysql_create_db
and wait_if_global_read_lock() was wrong. It could happen
that a thread held LOCK_mysql_create_db while waiting for
the global read lock to be released. The thread with the
global read lock could try to administrate a database too.
It would first try to lock LOCK_mysql_create_db and hang...
The check if the current thread has the global read lock
is done in wait_if_global_read_lock(), which could not be
reached because of the hang in LOCK_mysql_create_db.
Now I exchanged the order of acquiring LOCK_mysql_create_db
and wait_if_global_read_lock(). This makes
wait_if_global_read_lock() fail with an error message for
the thread with the global read lock. No deadlock happens.
mysql-test/r/lock_multi.result:
Bug#19815 - CREATE/RENAME/DROP DATABASE can deadlock on a global read lock
The test result
mysql-test/t/lock_multi.test:
Bug#19815 - CREATE/RENAME/DROP DATABASE can deadlock on a global read lock
The test case
sql/sql_db.cc:
Bug#19815 - CREATE/RENAME/DROP DATABASE can deadlock on a global read lock
Exchanged the order of acquiring LOCK_mysql_create_db
and wait_if_global_read_lock().
The order of acquiring LOCK_mysql_create_db
and wait_if_global_read_lock() was wrong. It could happen
that a thread held LOCK_mysql_create_db while waiting for
the global read lock to be released. The thread with the
global read lock could try to administrate a database too.
It would first try to lock LOCK_mysql_create_db and hang...
The check if the current thread has the global read lock
is done in wait_if_global_read_lock(), which could not be
reached because of the hang in LOCK_mysql_create_db.
Now I exchanged the order of acquiring LOCK_mysql_create_db
and wait_if_global_read_lock(). This makes
wait_if_global_read_lock() fail with an error message for
the thread with the global read lock. No deadlock happens.
- Scheduler is either initialized at server start or never.
Starting & stopping is now suspending & resuming.
- The scheduler has clear OO interface
- Now all calls to the scheduler are synchronous
- GLOBAL event_scheduler uses thd::sys_var_tmp (see set_var.cc)
- External API is encapsulated into class Events
- Includes fixes for all comments of Kostja's review of 19.05.2005
Starting to merge into 5.1-release (5.1.10) and push
BitKeeper/etc/ignore:
Added libmysqld/event_scheduler.cc to the ignore list
libmysqld/Makefile.am:
executor -> scheduler
mysql-test/r/events.result:
update result
mysql-test/r/events_bugs.result:
update result
mysql-test/r/events_logs_tests.result:
update result
mysql-test/r/events_microsec.result:
update result
mysql-test/r/events_scheduling.result:
update result
mysql-test/r/events_stress.result:
update result
mysql-test/t/disabled.def:
enable these tests
mysql-test/t/events.test:
optimize the test a bit for speed, save some seconds runtime
remove FULL from SHOW EVENTS
mostly use I_S.EVENTS
mysql-test/t/events_bugs.test:
Skip irrelevant for the current design tests - all events are loaded
on server startup. Change in mysql.event will be visible on next server start.
Don't use numeric error codes.
mysql-test/t/events_logs_tests.test:
optimize the test a bit for speed
mysql-test/t/events_microsec.test:
Skip irrelevant for the current design tests - all events are loaded
on server startup. Change in mysql.event will be visible on next server start.
Don't use numeric error codes.
mysql-test/t/events_scheduling.test:
broader test
mysql-test/t/events_stress.test:
Rework the test to the new architecture of suspending/resuming.
Use less events, no need for thousands, hundreds is still ok.
sql/Makefile.am:
executor -> scheduler
sql/cmakelists.txt:
executor -> scheduler
sql/event.cc:
- remove todo comments
- remove unneded evex_queue abstraction functions
- move events_init() and events_shutdown() from event_executor.cc to here
- export db_create_event
- remove evex_load_and_compile_event, part of class Event_scheduler
- integrate the public interface found in event.h and used by sql_parse.cc
to use the new class Event_scheduler.
sql/event.h:
- add COND_finished so if one thread kills a running event it waits on this
- export callback event_timed_definer_equal, event_timed_identifier_equal(),
event_timed_name_equal and event_timed_db_equal()
to be used by Event_scheduler::drop_matching_events()
- cleanup event.h
- encapsulated all external interface into class Events
sql/event_executor.cc:
make it empty, will delete after that
sql/event_priv.h:
- more things in the private header
- remove event queue abstraction functions. tightly bind to QUEUE
- export privately db_drop_event, db_find_event, db_create_event()
- made change_security_context() and restore_security_context() free functions
sql/event_timed.cc:
- fix calculation of time when ENDS is set (STARTS is always set)
- during Event_timed::compile() set the right Security_ctx. Prevents a crash
during Event_scheduler::load_events_from_db()
- add Event_timed::kill_thread()
- implement event_timed_*_equal()
- made change_security_context() and restore_security_context() free functions.
- Comments cleanups
sql/lex.h:
new word scheduler for SHOW SCHEDULER STATUS (available only debug builds)
sql/log.cc:
move these from event_scheduler.cc
sql/mysql_priv.h:
refactor kill_one_thread
export sql_print_message_func and sql_print_message_handlers
sql/mysqld.cc:
In close_connections, called by kill_server() skip the main scheduler
thread and use events_shutdown() for shutting down the scheduler, in the same
manner it's done for RPL.
Add a new value to --event-scheduler :
0 <- No scheduler available
1 <- Start with scheduler enabled
2 <- Start with scheduler suspended
sql/repl_failsafe.cc:
refactor thd::system_thread to be an enum
sql/set_var.cc:
move sys_var_event_executor::update() to set_var.cc
executor -> scheduler
use thd::sys_var_tmp
sql/set_var.h:
executor -> scheduler
sql/share/errmsg.txt:
3 new error messages
sql/sql_class.cc:
refactor thd::system_thread to be an enum . more type-safety
sql/sql_class.h:
refactor thd::system_thread to be an enum . more type-safety
sql/sql_db.cc:
get the error from evex_drop_schema_events
sql/sql_error.h:
export warning_level_names
sql/sql_lex.h:
new command SHOW SCHEDULER STATUS, available only in debug build and
for debug purposes.
sql/sql_parse.cc:
refactor kill_one_thread() -> does the *dirty* work, and sql_kill
just the reporting.
add handler for SQLCOM_SHOW_SCHEDULER_STATUS
sql/sql_show.cc:
fix verbosity handling (this will be obsoleted anyway by the fix for 17394).
sql/sql_yacc.yy:
remove FULL from SHOW EVENTS
add SHOW SCHEDULER STATUS in debug builds
sql/table.cc:
Fix valgrind warning.
- Scheduler is either initialized at server start or never.
Starting & stopping is now suspending & resuming.
- The scheduler has clear OO interface
- Now all calls to the scheduler are synchronous
- GLOBAL event_scheduler uses thd::sys_var_tmp (see set_var.cc)
- External API is encapsulated into class Events
- Includes fixes for all comments of Kostja's review of 19.05.2005
Starting to merge into 5.1-release (5.1.10) and push
Bug#19392: Rename Database: Crash if case change
Additional minor fix, to avoid compiler warnings.
sql/sql_db.cc:
Bug#19392: Rename Database: Crash if case change
Additional minor fix, to avoid compiler warnings.
Problem:
Renaming a database to itself crashed server.
It hapenned because of wrong DBUG_ASSERT.
Fix: removing wrong DBUG_ASSERT. Now it reports
a correct error message "database alreadt exists".
mysql-test/r/renamedb.result:
Adding test case
mysql-test/t/renamedb.test:
Adding test case
sql/sql_db.cc:
DBUG_ASSERT crashed server when renaming a database to itself.
Problem:
Renaming a database to itself crashed server.
It hapenned because of wrong DBUG_ASSERT.
Fix: removing wrong DBUG_ASSERT. Now it reports
a correct error message "database alreadt exists".
