- BUG#11986: Stored routines and triggers can fail if the code
has a non-ascii symbol
- BUG#16291: mysqldump corrupts string-constants with non-ascii-chars
- BUG#19443: INFORMATION_SCHEMA does not support charsets properly
- BUG#21249: Character set of SP-var can be ignored
- BUG#25212: Character set of string constant is ignored (stored routines)
- BUG#25221: Character set of string constant is ignored (triggers)
There were a few general problems that caused these bugs:
1. Character set information of the original (definition) query for views,
triggers, stored routines and events was lost.
2. mysqldump output query in client character set, which can be
inappropriate to encode definition-query.
3. INFORMATION_SCHEMA used strings with mixed encodings to display object
definition;
1. No query-definition-character set.
In order to compile query into execution code, some extra data (such as
environment variables or the database character set) is used. The problem
here was that this context was not preserved. So, on the next load it can
differ from the original one, thus the result will be different.
The context contains the following data:
- client character set;
- connection collation (character set and collation);
- collation of the owner database;
The fix is to store this context and use it each time we parse (compile)
and execute the object (stored routine, trigger, ...).
2. Wrong mysqldump-output.
The original query can contain several encodings (by means of character set
introducers). The problem here was that we tried to convert original query
to the mysqldump-client character set.
Moreover, we stored queries in different character sets for different
objects (views, for one, used UTF8, triggers used original character set).
The solution is
- to store definition queries in the original character set;
- to change SHOW CREATE statement to output definition query in the
binary character set (i.e. without any conversion);
- introduce SHOW CREATE TRIGGER statement;
- to dump special statements to switch the context to the original one
before dumping and restore it afterwards.
Note, in order to preserve the database collation at the creation time,
additional ALTER DATABASE might be used (to temporary switch the database
collation back to the original value). In this case, ALTER DATABASE
privilege will be required. This is a backward-incompatible change.
3. INFORMATION_SCHEMA showed non-UTF8 strings
The fix is to generate UTF8-query during the parsing, store it in the object
and show it in the INFORMATION_SCHEMA.
Basically, the idea is to create a copy of the original query convert it to
UTF8. Character set introducers are removed and all text literals are
converted to UTF8.
This UTF8 query is intended to provide user-readable output. It must not be
used to recreate the object. Specialized SHOW CREATE statements should be
used for this.
The reason for this limitation is the following: the original query can
contain symbols from several character sets (by means of character set
introducers).
Example:
- original query:
CREATE VIEW v1 AS SELECT _cp1251 'Hello' AS c1;
- UTF8 query (for INFORMATION_SCHEMA):
CREATE VIEW v1 AS SELECT 'Hello' AS c1;
client/mysqldump.c:
Set original character set and collation before dumping definition query.
include/my_sys.h:
Move out-parameter to the end of list.
mysql-test/lib/mtr_report.pl:
Ignore server-warnings during the test case.
mysql-test/r/create.result:
Update result file.
mysql-test/r/ctype_cp932_binlog_stm.result:
Update result file.
mysql-test/r/events.result:
Update result file.
mysql-test/r/events_bugs.result:
Update result file.
mysql-test/r/events_grant.result:
Update result file.
mysql-test/r/func_in.result:
Update result file.
mysql-test/r/gis.result:
Update result file.
mysql-test/r/grant.result:
Update result file.
mysql-test/r/information_schema.result:
Update result file.
mysql-test/r/information_schema_db.result:
Update result file.
mysql-test/r/lowercase_view.result:
Update result file.
mysql-test/r/mysqldump.result:
Update result file.
mysql-test/r/ndb_sp.result:
Update result file.
mysql-test/r/ps.result:
Update result file.
mysql-test/r/rpl_replicate_do.result:
Update result file.
mysql-test/r/rpl_sp.result:
Update result file.
mysql-test/r/rpl_trigger.result:
Update result file.
mysql-test/r/rpl_view.result:
Update result file.
mysql-test/r/show_check.result:
Update result file.
mysql-test/r/skip_grants.result:
Update result file.
mysql-test/r/sp-destruct.result:
Update result file.
mysql-test/r/sp-error.result:
Update result file.
mysql-test/r/sp-security.result:
Update result file.
mysql-test/r/sp.result:
Update result file.
mysql-test/r/sql_mode.result:
Update result file.
mysql-test/r/system_mysql_db.result:
Update result file.
mysql-test/r/temp_table.result:
Update result file.
mysql-test/r/trigger-compat.result:
Update result file.
mysql-test/r/trigger-grant.result:
Update result file.
mysql-test/r/trigger.result:
Update result file.
mysql-test/r/view.result:
Update result file.
mysql-test/r/view_grant.result:
Update result file.
mysql-test/t/events.test:
Update test case (new columns added).
mysql-test/t/information_schema.test:
Update test case (new columns added).
mysql-test/t/show_check.test:
Test case for SHOW CREATE TRIGGER in prepared statements and
stored routines.
mysql-test/t/sp-destruct.test:
Update test case (new columns added).
mysql-test/t/sp.test:
Update test case (new columns added).
mysql-test/t/view.test:
Update test.
mysys/charset.c:
Move out-parameter to the end of list.
scripts/mysql_system_tables.sql:
Add new columns to mysql.proc and mysql.event.
scripts/mysql_system_tables_fix.sql:
Add new columns to mysql.proc and mysql.event.
sql/event_data_objects.cc:
Support new attributes for events.
sql/event_data_objects.h:
Support new attributes for events.
sql/event_db_repository.cc:
Support new attributes for events.
sql/event_db_repository.h:
Support new attributes for events.
sql/events.cc:
Add new columns to SHOW CREATE event resultset.
sql/mysql_priv.h:
1. Introduce Object_creation_ctx;
2. Introduce SHOW CREATE TRIGGER;
3. Introduce auxilary functions.
sql/sp.cc:
Add support for new store routines attributes.
sql/sp_head.cc:
Add support for new store routines attributes.
sql/sp_head.h:
Add support for new store routines attributes.
sql/sql_lex.cc:
Generate UTF8-body on parsing/lexing.
sql/sql_lex.h:
1. Generate UTF8-body on parsing/lexing.
2. Introduce SHOW CREATE TRIGGER.
sql/sql_parse.cc:
Introduce SHOW CREATE TRIGGER.
sql/sql_partition.cc:
Update parse_sql().
sql/sql_prepare.cc:
Update parse_sql().
sql/sql_show.cc:
Support new attributes for views
sql/sql_trigger.cc:
Support new attributes for views
sql/sql_trigger.h:
Support new attributes for views
sql/sql_view.cc:
Support new attributes for views
sql/sql_yacc.yy:
1. Add SHOW CREATE TRIGGER statement.
2. Generate UTF8-body for views, stored routines, triggers and events.
sql/table.cc:
Introduce Object_creation_ctx.
sql/table.h:
Introduce Object_creation_ctx.
sql/share/errmsg.txt:
Add new errors.
mysql-test/include/ddl_i18n.check_events.inc:
Aux file for test suite.
mysql-test/include/ddl_i18n.check_sp.inc:
Aux file for test suite.
mysql-test/include/ddl_i18n.check_triggers.inc:
Aux file for test suite.
mysql-test/include/ddl_i18n.check_views.inc:
Aux file for test suite.
mysql-test/include/have_cp1251.inc:
Aux file for test suite.
mysql-test/include/have_cp866.inc:
Aux file for test suite.
mysql-test/include/have_koi8r.inc:
Aux file for test suite.
mysql-test/include/have_utf8.inc:
Aux file for test suite.
mysql-test/r/ddl_i18n_koi8r.result:
Result file.
mysql-test/r/ddl_i18n_utf8.result:
Result file.
mysql-test/r/have_cp1251.require:
Aux file for test suite.
mysql-test/r/have_cp866.require:
Aux file for test suite.
mysql-test/r/have_koi8r.require:
Aux file for test suite.
mysql-test/r/have_utf8.require:
Aux file for test suite.
mysql-test/t/ddl_i18n_koi8r.test:
Complete koi8r test case for the CS patch.
mysql-test/t/ddl_i18n_utf8.test:
Complete utf8 test case for the CS patch.
- TRUNCATE requires DROP privilege, not DELETE
mysql-test/r/grant.result:
Bug #23556: TRUNCATE TABLE still maps to DELETE
- test case
mysql-test/r/trigger-grant.result:
Bug #23556: TRUNCATE TABLE still maps to DELETE
- updated test case
mysql-test/t/grant.test:
Bug #23556: TRUNCATE TABLE still maps to DELETE
- test case
mysql-test/t/trigger-grant.test:
Bug #23556: TRUNCATE TABLE still maps to DELETE
- updated test case
into mysql.com:/users/lthalmann/bk/MERGE/mysql-5.1-merge
mysql-test/r/binlog_row_mix_innodb_myisam.result:
Auto merged
mysql-test/r/federated.result:
Auto merged
mysql-test/r/innodb.result:
Auto merged
mysql-test/extra/rpl_tests/rpl_ddl.test:
Auto merged
mysql-test/r/rpl_ddl.result:
Auto merged
mysql-test/r/sp-error.result:
Auto merged
mysql-test/r/sp.result:
Auto merged
mysql-test/r/rpl_ndb_charset.result:
Auto merged
mysql-test/r/type_ranges.result:
Auto merged
mysql-test/r/view.result:
Auto merged
mysql-test/r/trigger-grant.result:
Auto merged
mysql-test/t/archive.test:
Auto merged
mysql-test/t/create.test:
Auto merged
mysql-test/t/disabled.def:
Auto merged
mysql-test/t/federated.test:
Auto merged
mysql-test/t/innodb.test:
Auto merged
mysql-test/t/innodb_mysql.test:
Auto merged
mysql-test/t/sp.test:
Auto merged
mysql-test/t/trigger-grant.test:
Auto merged
mysql-test/t/view.test:
Auto merged
sql/ha_innodb.cc:
Auto merged
sql/log.cc:
Auto merged
sql/log_event.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/set_var.h:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
mysql-test/r/create.result:
Manual merge
mysql-test/r/innodb_mysql.result:
Manual merge
sql/handler.cc:
Manual merge
sql/share/errmsg.txt:
Manual merge
sql/sql_class.h:
Manual merge
sql/sql_delete.cc:
Manual merge
sql/sql_insert.cc:
Manual merge
sql/sql_table.cc:
Manual merge
Under row-based replication, DELETE FROM will now always be
replicated as individual row deletions, while TRUNCATE TABLE will
always be replicated as a statement.
mysql-test/extra/rpl_tests/rpl_ddl.test:
Using --echo instead of SELECT to print message.
mysql-test/r/binlog_row_mix_innodb_myisam.result:
Result change.
mysql-test/r/federated.result:
Result change.
mysql-test/r/range.result:
Result change.
mysql-test/r/rpl_sp_effects.result:
Result change.
mysql-test/r/show_check.result:
Result change.
mysql-test/r/sp-error.result:
Result change.
mysql-test/r/sp.result:
Result change.
mysql-test/r/timezone2.result:
Result change.
mysql-test/r/trigger-grant.result:
Result change.
mysql-test/r/type_datetime.result:
Result change.
mysql-test/r/type_ranges.result:
Result change.
mysql-test/r/type_timestamp.result:
Result change.
mysql-test/r/view.result:
Result change.
mysql-test/t/archive.test:
Test contain statements that only works for statement-based logging.
mysql-test/t/disabled.def:
Disabling test due to reported bug.
mysql-test/t/federated.test:
Adding ORDER BY clause to SELECT statements
mysql-test/t/range.test:
Adding ORDER BY clause to SELECT (sub-)statement
mysql-test/t/rpl_sp_effects.test:
Adding ORDER BY clause to SELECT statement.
mysql-test/t/show_check.test:
Replacing DELETE FROM without WHERE with TRUNCATE TABLE.
mysql-test/t/sp-error.test:
Replacing DELETE FROM without WHERE with TRUNCATE TABLE.
mysql-test/t/sp.test:
Adding ORDER BY clause to SELECT statement.
mysql-test/t/timezone2.test:
Replacing DELETE FROM without WHERE with TRUNCATE TABLE.
mysql-test/t/trigger-grant.test:
Replacing DELETE FROM without WHERE with TRUNCATE TABLE.
mysql-test/t/type_datetime.test:
Adding ORDER BY clause to SELECT statement.
mysql-test/t/type_ranges.test:
Replacing DELETE FROM without WHERE with TRUNCATE TABLE.
mysql-test/t/type_timestamp.test:
Replacing DELETE FROM without WHERE with TRUNCATE TABLE.
mysql-test/t/view.test:
Adding ORDER BY clause to SELECT statement.
sql/sql_class.h:
Adding member function to set replication to statement-based.
sql/sql_delete.cc:
When row-based replication is used, DELETE FROM will always delete the
contents of the table row-by-row and not use delete_all_rows().
mysql-test/extra/rpl_tests/rpl_truncate.test:
New BitKeeper file ``mysql-test/extra/rpl_tests/rpl_truncate.test''
mysql-test/extra/rpl_tests/rpl_truncate_helper.inc:
New BitKeeper file ``mysql-test/extra/rpl_tests/rpl_truncate_helper.inc''
mysql-test/r/rpl_truncate_2myisam.result:
New BitKeeper file ``mysql-test/r/rpl_truncate_2myisam.result''
mysql-test/r/rpl_truncate_3innodb.result:
New BitKeeper file ``mysql-test/r/rpl_truncate_3innodb.result''
mysql-test/r/rpl_truncate_7ndb.result:
New BitKeeper file ``mysql-test/r/rpl_truncate_7ndb.result''
mysql-test/t/rpl_truncate_2myisam.test:
New BitKeeper file ``mysql-test/t/rpl_truncate_2myisam.test''
mysql-test/t/rpl_truncate_3innodb.test:
New BitKeeper file ``mysql-test/t/rpl_truncate_3innodb.test''
mysql-test/t/rpl_truncate_7ndb.test:
New BitKeeper file ``mysql-test/t/rpl_truncate_7ndb.test''
into mysql.com:/usr/local/mysql/merge-5.1
mysql-test/lib/mtr_process.pl:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/sp-error.result:
Auto merged
mysql-test/r/sp.result:
Auto merged
mysql-test/r/trigger-grant.result:
Auto merged
mysql-test/r/trigger.result:
Auto merged
mysql-test/t/sp.test:
Auto merged
mysql-test/t/trigger-grant.test:
Auto merged
mysql-test/t/trigger.test:
Auto merged
server-tools/instance-manager/options.h:
Auto merged
sql/field_conv.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/item_func.h:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/share/errmsg.txt:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
server-tools/instance-manager/options.cc:
Manual merge
sql/item_func.cc:
Manual merge
sql/mysql_priv.h:
Manual merge
sql/sp_head.cc:
Manual merge
sql/sql_table.cc:
Manual merge
from within triggers
Add support for passing NEW.x as INOUT and OUT parameters to stored
procedures. Passing NEW.x as INOUT parameter requires SELECT and
UPDATE privileges on that column, and passing it as OUT parameter
requires only UPDATE privilege.
mysql-test/r/sp-error.result:
Update the result for new message.
mysql-test/r/trigger-grant.result:
Add result for bug#14635.
mysql-test/r/trigger.result:
Add result for bug#14635.
mysql-test/t/trigger-grant.test:
Add test case for bug#14635.
mysql-test/t/trigger.test:
Add test case for bug#14635.
sql/item.cc:
Add implementations of set_value() and set_required_privilege() methods
of Settable_routine_parameter interface.
Use Item_trigger_field::want_privilege instead of
Item_trigger_field::access_type.
Reset privileges on Item_trigger_field::cleanup().
sql/item.h:
Add interface class Settable_routine_parameter and interface query
method to Item class. Item_splocal and Item_trigger_field implement
this interface.
For Item_trigger_field:
- add read_only attribute and is_read_only() method.
- remove access_type and add original_privilege and want_privilege
instead.
- add set_value() method.
- add reset_privilege() method.
sql/item_func.cc:
Add implementations of set_value() method of Settable_routine_parameter
interface.
sql/item_func.h:
Item_func_get_user_var implements Settable_routine_parameter interface.
sql/share/errmsg.txt:
Update english ER_SP_NOT_VAR_ARG message.
sql/sp_head.cc:
Use Settable_routine_parameter interface for parameter update.
sql/sql_yacc.yy:
Set read_only and want_privilege members in Item_trigger_field
appropriately. For NEW.x trigger variable used in left-hand-side
of SET statement the latter is set to UPDATE_ACL, otherwise it is
set to SELECT_ACL (but see Item_trigger_field::set_required_privilege(),
where it may be updated to different value).
mysql-test/r/trigger-grant.result:
Updated the result file.
mysql-test/r/view_grant.result:
Updated the result file.
mysql-test/t/trigger-grant.test:
A patch for BUG#13198 has been merged, so need to update the test case.
mysql-test/t/view_grant.test:
A patch for BUG#16777 has been merged, so need to update the test case.
sql/sql_parse.cc:
After-merge fix (should have been a part of fix for BUG#16777).
sql/sql_show.cc:
After-merge fix -- empty identifier should be quoted.
mysql-test/r/trigger-grant.result:
Updated result file: use TRIGGER instead of SUPER for BUG#15166/15196 tests.
sql/item.cc:
Updated according to the 5.1 data structures.
into mysql.com:/home/alik/Documents/AllProgs/MySQL/devel/5.1-tree
mysql-test/r/trigger-grant.result:
Auto merged
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/sql_yacc.yy:
Auto merged
mysql-test/t/trigger-grant.test:
Merged.
sql/sql_trigger.cc:
Merged.
Implement table-level TRIGGER privilege to control access to triggers.
Before this path global SUPER privilege was used for this purpose, that
was the big security problem.
In details, before this patch SUPER privilege was required:
- for the user at CREATE TRIGGER time to create a new trigger;
- for the user at DROP TRIGGER time to drop the existing trigger;
- for the definer at trigger activation time to execute the trigger (if the
definer loses SUPER privilege, all its triggers become unavailable);
This patch changes the behaviour in the following way:
- TRIGGER privilege on the subject table for trigger is required:
- for the user at CREATE TRIGGER time to create a new trigger;
- for the user at DROP TRIGGER time to drop the existing trigger;
- for the definer at trigger activation time to execute the trigger
(if the definer loses TRIGGER privilege on the subject table, all its
triggers on this table become unavailable).
- SUPER privilege is still required:
- for the user at CREATE TRIGGER time to explicitly set the trigger
definer to the user other than CURRENT_USER().
When the server works with database of the previous version (w/o TRIGGER
privilege), or if the database is being upgraded from the previous versions,
TRIGGER privilege is granted to whose users, who have CREATE privilege.
mysql-test/r/grant.result:
Updated the result file after adding TRIGGER privilege.
mysql-test/r/information_schema.result:
Updated the result file after adding TRIGGER privilege.
mysql-test/r/lowercase_table_grant.result:
Updated the result file after adding TRIGGER privilege.
mysql-test/r/ps.result:
Updated the result file after adding TRIGGER privilege.
mysql-test/r/sp.result:
Updated the result file after adding TRIGGER privilege.
mysql-test/r/trigger-compat.result:
Updated the result file after adding TRIGGER privilege.
mysql-test/r/trigger-grant.result:
Updated the result file after adding TRIGGER privilege.
mysql-test/t/trigger-compat.test:
Grant table-level TRIGGER privilege instead of global SUPER one.
mysql-test/t/trigger-grant.test:
1. Grant table-level TRIGGER privilege instead of global SUPER one.
2. Updated the test case to check that SUPER is required to specify
the user other than the current as a definer.
scripts/mysql_create_system_tables.sh:
Added TRIGGER privilege.
scripts/mysql_fix_privilege_tables.sql:
Added TRIGGER privilege.
sql/sql_acl.cc:
Added TRIGGER privilege.
sql/sql_acl.h:
Added TRIGGER privilege.
sql/sql_show.cc:
Added TRIGGER privilege.
sql/sql_trigger.cc:
Check TRIGGER privilege instead of SUPER.
sql/sql_yacc.yy:
Added TRIGGER privilege.
- BUG#15166: Wrong update permissions required to execute triggers
- BUG#15196: Wrong select permission required to execute triggers
The idea of the fix is to check necessary privileges
in Item_trigger_field::fix_fields(), instead of having "special variables"
technique. To achieve this, we should pass to an Item_trigger_field instance
a flag, which will indicate the usage/access type of this trigger variable.
mysql-test/r/trigger-grant.result:
Update the result file.
mysql-test/t/trigger-grant.test:
Add test cases for BUG#15166 and BUG#15196
sql/item.cc:
Item_trigger_field: check appropriate (SELECT/UPDATE) privilege in fix_fields().
sql/item.h:
Add a flag to specify access type for trigger field.
sql/sql_trigger.cc:
"Special variable" technique of checking privileges for NEW/OLD variables
was replaced by checking table- and column-level privileges in
Item_trigger_field::fix_fields().
sql/sql_trigger.h:
"Special variable" technique of checking privileges for NEW/OLD variables
was replaced by checking table- and column-level privileges in
Item_trigger_field::fix_fields().
sql/sql_yacc.yy:
Specify access type for trigger fields.
mysql-test/r/information_schema.result:
Remove extra spaces from result file.
mysql-test/r/mysqldump.result:
Remove extra spaces from result file.
mysql-test/r/rpl_ddl.result:
Remove extra spaces from result file.
mysql-test/r/trigger-compat.result:
Remove extra spaces from result file.
mysql-test/r/trigger-grant.result:
Remove extra spaces from result file.
mysql-test/r/trigger.result:
Remove extra spaces from result file.
sql/sql_yacc.yy:
Remove leading spaces.
checks on trigger activation)
mysql-test/r/information_schema.result:
Update result file: a new column DEFINER has been added to
INFORMATION_SCHEMA.TRIGGERS.
mysql-test/r/mysqldump.result:
Update result file: a new column DEFINER has been added to
INFORMATION_SCHEMA.TRIGGERS.
mysql-test/r/rpl_ddl.result:
Update result file: a new column DEFINER has been added to
INFORMATION_SCHEMA.TRIGGERS.
mysql-test/r/rpl_sp.result:
Update result file: a new clause DEFINER has been added to
CREATE TRIGGER statement.
mysql-test/r/rpl_trigger.result:
Results for new test cases were added.
mysql-test/r/skip_grants.result:
Error message has been changed.
mysql-test/r/trigger.result:
Added DEFINER column.
mysql-test/r/view.result:
Error messages have been changed.
mysql-test/r/view_grant.result:
Error messages have been changed.
mysql-test/t/mysqldump.test:
Drop created procedure to not affect further tests.
mysql-test/t/rpl_trigger.test:
Add tests for new column in information schema.
mysql-test/t/skip_grants.test:
Error tag has been renamed.
mysql-test/t/view.test:
Error tag has been renamed.
mysql-test/t/view_grant.test:
Error tag has been changed.
sql/item_func.cc:
Fix typo in comments.
sql/mysql_priv.h:
A try to minimize copy&paste:
- introduce operations to be used from sql_yacc.yy;
- introduce an operation to be used from trigger and
view processing code.
sql/share/errmsg.txt:
- Rename ER_NO_VIEW_USER to ER_MALFORMED_DEFINER in order to
be shared for view and trigger implementations;
- Fix a typo;
- Add a new error code for trigger warning.
sql/sp.cc:
set_info() was split into set_info() and set_definer().
sql/sp_head.cc:
set_info() was split into set_info() and set_definer().
sql/sp_head.h:
set_info() was split into set_info() and set_definer().
sql/sql_acl.cc:
Add a new check: exit from the cycle if the table is NULL.
sql/sql_lex.h:
- Rename create_view_definer to definer, since it is used for views
and triggers;
- Change st_lex_user to LEX_USER, since st_lex_user is a structure.
So, formally, it should be "struct st_lex_user", which is longer
than just LEX_USER;
- Add trigger_definition_begin.
sql/sql_parse.cc:
- Add a new check: exit from the cycle if the table is NULL;
- Implement definer-related functions.
sql/sql_show.cc:
Add DEFINER column.
sql/sql_trigger.cc:
Add DEFINER support for triggers.
sql/sql_trigger.h:
Add DEFINER support for triggers.
sql/sql_view.cc:
Rename create_view_definer to definer.
sql/sql_yacc.yy:
Add support for DEFINER-clause in CREATE TRIGGER statement.
Since CREATE TRIGGER and CREATE VIEW can be similar at the start,
yacc is unable to distinguish between them. So, had to modify both
statements in order to make it parsable by yacc.
mysql-test/r/trigger-compat.result:
Result file for triggers backward compatibility test.
mysql-test/r/trigger-grant.result:
Result file of the test for WL#2818.
mysql-test/t/trigger-compat.test:
Triggers backward compatibility test: check that the server
still can load triggers w/o definer attribute and modify
tables with such triggers (add a new trigger, etc).
mysql-test/t/trigger-grant.test:
Test for WL#2818 -- check that DEFINER support in triggers
works properly
