1. Transformation of row IN subquery made the same as single value.
2. replace_where_subcondition() made working on several layers of OR/AND because it called on expression before fix_fields().
(and valgrind warnings)
* move thd userstat initialization to the same function
that was adding thd userstat to global counters.
* initialize thd->start_bytes_received in THD::init
(when thd->userstat_running is set)
Singular Item_equal support added.
The problem was that during constant table substitution Item_equal become containing only one constant which was not supported internally.
- Character set code & tests from Alexander Barkov
- Integration with ALTER TABLE, REPAIR and open_table from Monty
The problem was that MySQL 5.6 added some croatian and vitanamese character set collations that are incompatible with MariaDB.
The fix is to move the MariaDB conflicting collation numbers out of the region that MySQL is likely to use.
mysql_upgrade, REPAIR TABLE or ALTER TABLE will fix the collations.
If one tries to access and old incompatible table, one will get the error "Table upgrade required...."
After this patch, MariaDB supports all the MySQL character set collations and the old MariaDB croatian collations, which are closer to the latest standard than the MySQL versions.
New character sets:
ucs2_croatian_mysql561_uca_ci
utf8_croatian_mysql561_uca_ci
utf16_croatian_mysql561_uca_ci
utf32_croatian_mysql561_uca_ci
utf8mb4_croatian_mysql561_uca_ci
Other things:
- Fixed some compiler warnings
- mysql_upgrade prints information about repaired tables.
- Increased version number
VERSION:
Increased VERSION number
client/mysqlcheck.c:
Print repaired table name when using --verbose
include/m_ctype.h:
Add new MariaDB collation regions that are not likely to conflict with MySQL
include/my_base.h:
Added flag to detect if table was opened for ALTER TABLE
mysql-test/r/ctype_ldml.result:
Updated result
mysql-test/r/ctype_uca.result:
Updated result
mysql-test/r/ctype_upgrade.result:
Updated result
mysql-test/r/ctype_utf16_uca.result:
Updated result
mysql-test/r/ctype_utf32_uca.result:
Updated result
mysql-test/r/ctype_utf8mb4_uca.result:
Updated result
mysql-test/std_data/ctype_upgrade:
Test files for testing upgrading of conflicting collations
mysql-test/suite/engines/funcs/r/db_alter_collate_ascii.result:
New collations added
mysql-test/suite/engines/funcs/r/db_alter_collate_utf8.result:
New collations added
mysql-test/suite/innodb/r/innodb_ctype_ldml.result:
Updated test result
mysql-test/suite/innodb/t/innodb_ctype_ldml.test:
Updated test result
mysql-test/suite/plugins/r/show_all_plugins.result:
Updated version number
mysql-test/suite/roles/create_and_drop_role_invalid_user_table.result:
Updated version number
mysql-test/t/ctype_ldml.test:
Updated test
mysql-test/t/ctype_uca.test:
Testing of new collations
mysql-test/t/ctype_upgrade.test:
Testing of upgrading tables with old collations
The test ensures that:
- We will get an error if we try to open a table with old collations.
- CHECK TABLE will detect that the table needs to be upgraded.
- ALTER TABLE and REPAIR will fix the table.
- mysql_upgrade works as expected
mysql-test/t/ctype_utf16_uca.test:
Testing of new collations
mysql-test/t/ctype_utf32_uca.test:
Testing of new collations
mysql-test/t/ctype_utf8mb4_uca.test:
Testing of new collations
mysys/charset-def.c:
Added new character sets
mysys/charset.c:
Always give an error, if requested, if a character set didn't exist
sql/handler.cc:
- Added upgrade_collation() to check if collation is compatible with old version
- check_collation_compatibility() checks if we are using an old collation from MariaDB 5.5 or MySQL 5.6
- ha_check_for_upgrade() returns HA_ADMIN_NEEDS_ALTER if we have an incompatible collation
sql/handler.h:
Added new prototypes
sql/sql_table.cc:
- Mark that tables are opened for ALTER TABLE
- If table needs to be upgraded, ensure we are not using online alter table.
sql/table.cc:
- If we are using an old incompatible collation, change to use the new one and mark table as incompatible.
- Give an error if we try to open an incompatible table.
sql/table.h:
Added error that table needs to be rebuild
storage/connect/ha_connect.cc:
Fixed compiler warning
strings/ctype-uca.c:
New character sets
Problem:-
We have created a table with UTF8_BIN collation.
In case, when in our query we have ORDER BY clause over a function
call we are getting result in incorrect order.
Note:the bug is not there in 5.5.
Analysis:
In 5.5, for UTF16_BIN, we have min and max multi-byte length is 2 and 4
respectively.In make_sortkey(),for 2 byte character character we are
assuming that the resultant length will be 2 byte/character. But when we
use my_strnxfrm_unicode_full_bin(), we store sorting weights using 3 bytes
per character.This result in truncated result.
Same thing happen for UTF8MB4, where we have 1 byte min multi-byte and
4 byte max multi-byte.We will accsume resultant data as 1 byte/character,
which result in truncated result.
Solution:-
use strnxfrm(means use of MY_CS_STRNXFRM macro) is used for sort, in
which the resultant length is not dependent on source length.
include/CMakeLists.txt:
Added handler_ername.h
include/handler_ername.h:
Names of handler error messages
mysql-test/extra/binlog_tests/binlog.test:
Test using handler error names
mysql-test/r/mysqltest.result:
Update for new error message
mysql-test/t/auto_increment.test:
Test using handler error names
mysql-test/t/auto_increment_ranges.inc:
Test using handler error names
mysql-test/t/replace.test:
Test using handler error names
extend table names discovery (ha_discover_table_names() and Discovered_table_list) to return
or optionally filter out temporary tables ("#sql..."). SHOW commands and I_S tables
typically want temp table filtered out, while DROP DATABASE wants to see them too.
additonally, remove the supression for the warning "Invalid (old?) table or database name"
from mtr, and add it to .test files as needed (we need to test that this warning
does *not* happen in drop.test)
Updated --help text to declare --slave-parallel-threads as an alpha feature
mysql-test/r/mysqld--help.result:
Updated --help text
sql/slave.cc:
Added missing trans_retries++ that caused rpl_deadlock_innodb.test to fail.
This is safe as this part is never run in parallel.
sql/sql_base.cc:
Fixed temporary table handling (part of merge)
sql/sys_vars.cc:
Updated --help text to declare --slave-parallel-threads as an alpha feature
The merge is still missing a few hunks related to temporary tables and
InnoDB log file size. The associated code did not seem to exist in
10.0, so the merge of that needs more work. Until this is fixed, there
are a number of test failures as a result.
which makes it possible to add more world language collations
with very complex collation rules (e.g. Myanmar):
- Weight string for a single character in a user defined collation
was erroneously limited to 7 weights (instead of 8 weights).
Added an extra element in the user-defined weight arrays,
to fit 8 non-zero weights.
- Weight string limit for contractions was made two times longer (16 weights),
which allows longer contractions without affecting the performance
of filesort.
- A user-defined collation now refuses to initialize and reports an error
in case if a weight string gets longer than 8 weights for a single character,
or longer than 16 weights for a contraction. Previously weight strings
for such characters (and contractions) were cut, so a collation
could silently start with wrong rules.
- Fixed a bug in handling rules like "&a << b" in combination with
shift-after-method="expand". The primary weight for "b" was not
correctly calculated, which erroneously made "b" primary greater than "a"
instead of primary equal to "a".
Analysis:
st_select_lex_unit::prepare() computes can_skip_order_by as TRUE.
As a result join->prepare() gets called with order == NULL, and
doesn't do name resolution for the inner ORDER clause. Due to this
the prepare phase doesn't detect that the query references non-exiting
function and field.
Later join->optimize() calls update_used_tables() for a non-resolved
Item_field, which understandably has no Field object. This call results
in a crash.
Solution:
Resolve unnecessary ORDER BY clauses to detect if they reference non-exising
objects. Then remove such clauses from the JOIN object.
GRANT ... IDENTIFIED BY [ PASSWORD ] ...
GRANT ... IDENTIFIED VIA ... [ USING ... ]
GRANT ... REQUIRE ...
GRANT ... MAX_xxx ...
SET PASSWORD FOR ... = ...
- Backport MySQL's fix: do set ha_partition::m_pkey_is_clustered for ha_partition
objects created with handler->clone() call.
- Also, include a testcase.
Only allow NONE instead of a role name in SET ROLE.
Don't allow PUBLIC as a role name anywhere (to be fixed later)
Fix db_access calculations on SET ROLE
Reduce the size of role_grants and parent_grantee per-user/role arrays.
Fix the wording and specify the correct sqlstate for ER_INVALID_ROLE
functions for traversing the role graph in either direction.
merging of global, database, table, column, routine privileges.
debug status variables for counting number of privilege merges.
tests.
mainly to avoid the pattern of
* get username/hostname/rolename
* optionally find the corresponding ACL_USER and ACL_ROLE
* allocate memory, concatenate username/hostname/rolename
* call a function passing only this memory as an argument
** use concatenated username/etc to find ACL_USER and ACL_ROLE again
** do something
* free the object
Also to undo push_dynamic we use pop_dynamic now,
not a linear search/scan through the dynamic array.
as a bonus, role@ is now an invalid way to refer to a role.
