Commit graph

26186 commits

Author SHA1 Message Date
Sergey Vojtovich
87e80b6593 Merge fix for BUG47444 to mysql-5.1-bugteam. 2010-03-16 18:06:03 +04:00
Luis Soares
cc223d3883 Automerge: mysql-5.1-bugteam bug branch --> mysql-5.1-bugteam latest. 2010-03-16 11:47:15 +00:00
Martin Hansson
0ed4684547 Bug#50918: Date columns treated differently in Views than in
Base Tables

The type inferrence of a view column caused the result to be
interpreted as the wrong type: DATE colums were interpreted
as TIME and TIME as DATETIME. This happened because view
columns are represented by Item_ref objects as opposed to
Item_field's. Item_ref had no method for retrieving a TIME
value and thus was forced to depend on the default
implementation for any expression, which caused the
expression to be evaluated as a string and then parsed into
a TIME/DATETIME value.

Fixed by letting Item_ref classes forward the request for a
TIME value to the referred Item - which is a field in this
case - this reads the TIME value directly without
conversion.
2010-03-16 10:20:07 +01:00
Mattias Jonsson
e62c30b5f8 merge 2010-03-12 11:52:38 +01:00
Sergey Vojtovich
e0aadfd491 BUG#47444 - --myisam_repair_threads>1can result in all
index cardinalities=1

Parallel repair didn't poroperly update index cardinality
in certain cases.

When myisam_sort_buffer_size is not enough to store all
keys, index cardinality was updated before index was
actually written, when no index statistic is available.

mysql-test/r/myisam.result:
  A test case for BUG#47444.
mysql-test/t/myisam.test:
  A test case for BUG#47444.
storage/myisam/sort.c:
  update_key_parts() must be called after all index
  entries are written, when index statistic is available.
2010-03-12 14:43:30 +04:00
Mattias Jonsson
7871605bcf merge 2010-03-12 11:41:29 +01:00
Mattias Jonsson
f3190ea61f merged 2010-03-12 11:14:40 +01:00
Mattias Jonsson
78dd2652df Bug#48229: group by performance issue of partitioned table
Additional result file update
2010-03-12 11:14:04 +01:00
Mattias Jonsson
459d04c639 merge 2010-03-11 14:25:33 +01:00
Mattias Jonsson
1a9ec92049 merge 2010-03-11 14:18:44 +01:00
Mattias Jonsson
29b39e7a44 Bug#51830: Incorrect partition pruning on range partition
(regression)

Problem was that partition pruning did not exclude the
last partition if the range was beyond it
(i.e. not using MAXVALUE)

Fix was to not include the last partition if the
partitioning function value was not within the partition
range.

mysql-test/r/partition_innodb.result:
  Bug#51830: Incorrect partition pruning on range partition
  (regression)
  
  Updated result
mysql-test/r/partition_pruning.result:
  Bug#51830: Incorrect partition pruning on range partition
  (regression)
  
  Updated result
mysql-test/t/partition_innodb.test:
  Bug#51830: Incorrect partition pruning on range partition
  (regression)
  
  Added test for pruning in InnoDB, since it does not show
  for MyISAM due to 'Impossible WHERE noticed after reading
  const tables'.
mysql-test/t/partition_pruning.test:
  Bug#51830: Incorrect partition pruning on range partition
  (regression)
  
  Added test
sql/sql_partition.cc:
  Bug#51830: Incorrect partition pruning on range partition
  (regression)
  
  Also increase the partition id if not inside the last partition
  (and no MAXVALUE is defined).
  
  Added comments and DBUG_ASSERT.
2010-03-10 12:56:05 +01:00
Davi Arnaut
81ffd72a58 Bug#51770: UNINSTALL PLUGIN requires no privileges
The problem was that UNINSTALL PLUGIN wasn't performing privilege
checks before removing a plugin. Any user (including users without 
any kind of privileges) could uninstall any plugin.

The solution is to verify if the user has the DELETE privilege for
the mysql.plugin table before uninstalling a plugin.

mysql-test/r/plugin_not_embedded.result:
  Add test case result for Bug#51770.
mysql-test/t/plugin_not_embedded-master.opt:
  Add example plugin path.
mysql-test/t/plugin_not_embedded.test:
  Add test case for Bug#51770.
  Skip embedded as test relies on privileges checks.
2010-03-09 09:16:17 -03:00
Sergey Glukhov
b8132a8d94 Bug#41788 mysql_fetch_field returns org_table == table by a view
The problem is that Item_direct_view_ref which is inherited
from Item_ident updates orig_table_name and table_name with
the same values. The fix is introduction of new constructor
into Item_ident and up which updates orig_table_name and
table_name separately.


mysql-test/r/metadata.result:
  test case
mysql-test/t/metadata.test:
  test case
sql/item.cc:
  new constructor which updates
  orig_table_name and table_name
  separately.
sql/item.h:
  new constructor which updates
  orig_table_name and table_name
  separately.
sql/table.cc:
  used new constructor
2010-03-12 10:33:16 +04:00
Davi Arnaut
f502deac11 Bug#40277: SHOW CREATE VIEW returns invalid SQL
The problem is that not all column names retrieved from a SELECT
statement can be used as view column names due to length and format
restrictions. The server failed to properly check the conformity
of those automatically generated column names before storing the
final view definition on disk.

Since columns retrieved from a SELECT statement can be anything
ranging from functions to constants values of any format and length,
the solution is to rewrite to a pre-defined format any names that
are not acceptable as a view column name.

The name is rewritten to "Name_exp_%u" where %u translates to the
position of the column. To avoid this conversion scheme, define
explict names for the view columns via the column_list clause.
Also, aliases are now only generated for top level statements.

mysql-test/include/view_alias.inc:
  Add test case for Bug#40277
mysql-test/r/compare.result:
  Bug#40277: SHOW CREATE VIEW returns invalid SQL
mysql-test/r/group_by.result:
  Bug#40277: SHOW CREATE VIEW returns invalid SQL
mysql-test/r/ps.result:
  Bug#40277: SHOW CREATE VIEW returns invalid SQL
mysql-test/r/subselect.result:
  Bug#40277: SHOW CREATE VIEW returns invalid SQL
mysql-test/r/subselect3.result:
  Bug#40277: SHOW CREATE VIEW returns invalid SQL
mysql-test/r/type_datetime.result:
  Bug#40277: SHOW CREATE VIEW returns invalid SQL
mysql-test/r/union.result:
  Bug#40277: SHOW CREATE VIEW returns invalid SQL
mysql-test/r/view.result:
  Add test case result for Bug#40277
mysql-test/r/view_alias.result:
  Add test case result for Bug#40277
mysql-test/t/view_alias.test:
  Add test case for Bug#40277
sql/sql_view.cc:
  Check if auto generated column names are conforming. Also, the
  make_unique_view_field_name function is not used as it uses the
  original name to construct a new one, which does not work if the
  name is invalid.
2010-03-09 07:36:26 -03:00
Davi Arnaut
02ac873ccf Bug#51650: crash with user variables and triggers
The problem was that bits of the destructive equality propagation
optimization weren't being undone after the execution of a stored
program. Modifications to the parse tree that are based on transient
properties must be undone to enable the re-execution of stored
programs.

The solution is to cleanup any references to predicates generated
by the equality propagation during the execution of a stored program.

mysql-test/r/trigger.result:
  Add test case result for Bug#51650.
mysql-test/t/trigger.test:
  Add test case for Bug#51650.
sql/item.cc:
  Remove reference to a equality predicate.
2010-03-09 18:55:08 -03:00
Georgi Kodinov
fd35fc4ea2 Disable the second part of the test for bug #51357 until bug #51877 is fixed. 2010-03-09 19:00:15 +02:00
Georgi Kodinov
d0bb5465b8 Addendum to the test for bug 51357 : disable the (possibly binary)
output from HANDLER ... READ .. NEXT ...
2010-03-09 15:46:27 +02:00
Luis Soares
f8ce47b7a5 Automerge BUG 51251 bundle from bug report --> mysql-5.1-bugteam. 2010-03-09 00:02:28 +00:00
Luis Soares
3995884714 Automerge BUG 51226 bzr bundle from bug report --> myqsl-5.1-bugteam. 2010-03-08 23:57:26 +00:00
Luis Soares
17a30e02af Automerge: BUG 48993 bundle from bug report --> mysql-5.1-bugteam. 2010-03-08 23:55:19 +00:00
Georgi Kodinov
2ba46ad4fa Backport of the fix for bug #51357 to 5.0-bugteam.:
Spatial indexes were not checking for out-of-record condition in
the handler next command when the previous command didn't found
rows.

Fixed by making the rtree index to check for end of rows condition
before re-using the key from the previous search.

Fixed another crash if the tree has changed since the last search.
Added a test case for the other error.
2010-03-08 12:39:57 +02:00
Marc Alff
a7c9bf2ccf Bug#51295 Build warnings in mdl.cc
Before this fix, the performance schema instrumentation
in mdl.h / mdl.cc was incomplete, causing:
- build warnings,
- no data collection for the performance schema

This fix:
- added instrumentation helpers for the new preferred
  reader read write lock, mysql_prlock_*
- implemented completely the performance schema
  instrumentation of mdl.h / mdl.cc
2010-03-07 10:50:47 -07:00
Marc Alff
7ece4fe472 local merge 2010-03-07 10:10:24 -07:00
Alexey Kopytov
6e7b8b6a7a Manual merge of mysql-5.1-bugteam into mysql-trunk-merge.
Conflicts:

Text conflict in .bzr-mysql/default.conf
Text conflict in mysql-test/r/explain.result
Text conflict in mysql-test/r/having.result
Text conflict in mysql-test/suite/rpl/t/disabled.def
Text conflict in mysql-test/suite/rpl/t/rpl_slave_skip.test
Text conflict in storage/federated/ha_federated.cc
2010-03-07 19:40:59 +03:00
Bjorn Munch
22f923f2b1 Bug #51511 MTRv1 unable to find mysqld binary in out-of-source cmake builds
Set $glob_bindir, like $bindir in v2
Removed some obsolete IM code rather than changing it
2010-03-06 20:22:04 +01:00
Gleb Shchepa
63a88e1373 Bug #39653: find_shortest_key in sql_select.cc does not
consider clustered primary keys

Choosing a shortest index for the covering index scan,
the optimizer ignored the fact, that the clustered primary
key read involves whole table data.

The find_shortest_key function has been modified to
take into account that fact that a clustered PK has a
longest key of possible covering indices.


mysql-test/r/innodb_mysql.result:
  Test case for bug #39653.
mysql-test/t/innodb_mysql.test:
  Test case for bug #39653.
sql/sql_select.cc:
  Bug #39653: find_shortest_key in sql_select.cc does not
              consider clustered primary keys
  
  The find_shortest_key function has been modified to
  take into account that fact that a clustered PK has a
  longest key of possible covering indices.
2010-03-05 23:45:55 +04:00
Tatiana A. Nurnberg
fbad82deaa auto-merge 2010-03-05 17:45:29 +00:00
Tatiana A. Nurnberg
823661bdf0 manual merge 2010-03-05 16:44:37 +00:00
Marc Alff
ed3a57fea3 Bug#45194 mysql_upgrade deletes existing data in performance_schema database/schema
Before this fix, mysql_upgrade would always drop and re create
the performance_schema database.
This in theory could destroy user data created using 5.1 or older versions.

With this fix, mysql_upgrade checks the content of the
performance_schema database before droping it.
2010-03-05 08:31:01 -07:00
Guilhem Bichot
7bb4e5b459 Fix for BUG#51215 "log-error partially works with version 5.5": WL 4738 (reengineering of server variables)
had broken the 5.1 behaviour of --log-error: --log-error without argument sent to stderr instead of writing
to a file with an autogenerated name.

mysql-test/suite/sys_vars/t/log_error_func.test:
  test that error log is created and shown in SHOW VARIABLES.
  Interestingly the error log's path is apparently relative if --log-error=argument is used, but
  may be absolute or relative if --log-error(no argument) is used (because then the path is derived from
  that of pidfile_name, which can be absolute or relative, depending on if autogenerated or not).
mysql-test/suite/sys_vars/t/log_error_func2.test:
  test that error log is created and shown in SHOW VARIABLES
mysql-test/suite/sys_vars/t/log_error_func3.test:
  test that error log is empty in SHOW VARIABLES
sql/mysql_priv.h:
  id for option --log-error
sql/mysqld.cc:
  No --log-error means "write errors to stderr", whereas --log-error
  without argument means "write errors to a file". So we cannot use the default logic
  of class sys_var_charptr, which treats "option not used" the same as "option used
  without argument" and uses the same default for both. We need to catch "option used",
  in mysqld_get_one_option(), and then "without argument". Setting to "" makes sure
  that init_server_components() will create the log, with an autogenerated name.
sql/sys_vars.cc:
  need to give the option a numeric id so that we can catch it in mysqld_get_one_option()
2010-03-05 14:08:21 +01:00
Ramil Kalimullin
2eb9d388f6 Fix for bug#32426: "FEDERATED query returns corrupt results
for ORDER BY on a TEXT or VARCHAR field" backported to 5.1.
2010-03-05 14:51:37 +04:00
Alexander Nozdrin
16dfa2b16f Make funcs_1.myisam_views experimental on Solaris due to Bug 50595. 2010-03-05 12:28:45 +03:00
Alexander Barkov
56dc1bd2e3 Fixing non-determenistic results. 2010-03-05 12:17:19 +04:00
Mattias Jonsson
1f77c7b49a Bug#50392: insert_id is not reset for partitioned tables
auto_increment on duplicate entry

The bug was that when INSERT_ID was used and the storage
engine was told to release any reserved but not used
auto_increment values, it set the highest auto_increment
value to INSERT_ID.

The fix was to check if the auto_increment value was forced
by user (INSERT_ID) or by slave-thread, i.e. not auto-
generated. So that it is only allowed to release generated
values.

mysql-test/r/partition_error.result:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  updated result
mysql-test/suite/parts/inc/partition_auto_increment.inc:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  Added test
mysql-test/suite/parts/r/partition_auto_increment_archive.result:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  Added result, note that archive does only allow increasing
  auto_increment values
mysql-test/suite/parts/r/partition_auto_increment_blackhole.result:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  Added result, note that blackhole accepts all inserts :)
mysql-test/suite/parts/r/partition_auto_increment_innodb.result:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  Added result, note that innodb rolls back inserts on error,
  but keeps the auto_increment value.
mysql-test/suite/parts/r/partition_auto_increment_memory.result:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  Added result, note that memory and myisam inserts all rows
  before the error.
mysql-test/suite/parts/r/partition_auto_increment_myisam.result:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  Added result, note that memory and myisam inserts all rows
  before the error.
mysql-test/suite/parts/r/partition_auto_increment_ndb.result:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  Added result, note that NDB does not seem to handle
  INSERT_ID as other engines. (Martin will look into it).
mysql-test/t/partition_error.test:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  Added test
sql/ha_partition.cc:
  Bug#50392: insert_id is not reset for partitioned tables
  auto_increment on duplicate entry
  
  If the next_insert_id comes from non generated (i.e
  forced by INSERT_ID or slave-thread) then we cannot
  lower the reserved auto_increment value, since it have
  not reserved any values.
2010-03-04 18:16:10 +01:00
Georgi Kodinov
d934426ff5 Bug #51357: crash when using handler commands on spatial indexes
Spatial indexes were not checking for out-of-record condition in
the handler next command when the previous command didn't found
rows.

Fixed by making the rtree index to check for end of rows condition
before re-using the key from the previous search.

Fixed another crash if the tree has changed since the last search.
Added a test case for the other error.
2010-03-04 18:13:08 +02:00
Alexander Nozdrin
9f17a0018f Auto-merge from mysql-next-mr-bugfixing. 2010-03-04 18:39:32 +03:00
Alexander Nozdrin
366a68bb46 Auto-merge from mysql-next-mr-bugfixing. 2010-03-04 18:34:29 +03:00
Tatiana A. Nurnberg
62809e2a09 auto-merge 2010-03-04 12:39:29 +00:00
Alexander Barkov
47aaf9c401 Bug#51675 Server crashes on inserting 4 byte char. after ALTER TABLE to 'utf8mb4'
Bug#51676 Server crashes on SELECT, ORDER BY on 'utf8mb4' column
An additional fix. We should use 0xFFFD as a weight for supplementary
characters, not the "weight for character U+FFFD".
2010-03-04 16:02:30 +04:00
Mattias Jonsson
48d986f511 Bug#50104: Partitioned table with just 1 partion works with fk
There was no check for foreign keys when altering partitioned
tables.

Added check for FK when altering partitioned tables.

mysql-test/r/partition_innodb.result:
  Bug#50104: Partitioned table with just 1 partion works with fk
  
  Updated test result
mysql-test/t/partition_innodb.test:
  Bug#50104: Partitioned table with just 1 partion works with fk
  
  Added test for adding FK on partitioned tables (both 1 and 2
  partitions)
sql/sql_partition.cc:
  Bug#50104: Partitioned table with just 1 partion works with fk
  
  Disabled adding foreign key when altering a partitioned table.
2010-03-04 12:29:22 +01:00
Mattias Jonsson
e46d120e8e Bug#48229: group by performance issue of partitioned table
Problem was block_size on partitioned tables was not set,
resulting in keys_per_block was not correct which affects
the cost calculation for read time of indexes (including
cost for group min/max).Which resulted in a bad optimizer
decision.

Fixed by setting stats.block_size correctly.

mysql-test/r/partition_range.result:
  Bug#48229: group by performance issue of partitioned table
  
  Added result
mysql-test/t/partition_range.test:
  Bug#48229: group by performance issue of partitioned table
  
  Added test
sql/ha_partition.cc:
  Bug#48229: group by performance issue of partitioned table
  
  Added missing assignment of stats.block_size.
2010-03-04 12:09:09 +01:00
Alexander Barkov
922cdddeb0 A joint patch for:
Bug#51675 Server crashes on inserting 4 byte char. after ALTER TABLE to 'utf8mb4' 
Bug#51676 Server crashes on SELECT, ORDER BY on 'utf8mb4' column


include/m_ctype.h:
  Defining MY_CS_REPLACEMENT_CHARACTER
mysql-test/r/ctype_utf8mb4.result:
  Adding tests
mysql-test/t/ctype_utf8mb4.test:
  Adding tests
strings/ctype-uca.c:
  Don't use UCA data for characters higher than 0xFFFF.
strings/ctype-ucs2.c:
  Using newly defined MY_CS_REPLACEMENT_CHARACTER
strings/ctype-utf8.c:
  Using newly defined MY_CS_REPLACEMENT_CHARACTER
  Removing unesed variable "plane".
2010-03-04 15:00:32 +04:00
Mattias Jonsson
5eaa7936f6 Bug#51347: assertion with show create table + partition by columns
on decimal column

The problem was that there was no check to disallow DECIMAL
columns in the code (it was accepted as if it was INTEGER).

Solution was to correctly disallow DECIMAL columns in
COLUMNS partitioning. As documented.

mysql-test/r/partition_column.result:
  Bug#51347: assertion with show create table + partition by columns
  on decimal column
  
  updated test result
mysql-test/t/partition_column.test:
  Bug#51347: assertion with show create table + partition by columns
  on decimal column
  
  Added test to verify column types that is not supported
sql/sql_partition.cc:
  Bug#51347: assertion with show create table + partition by columns
  on decimal column
  
  Moved DECIMAL types to be disallowed as column types in COLUMNS
  partitioning
2010-03-04 11:24:39 +01:00
Luis Soares
7768ccbb54 BUG#51055: Replication failure on duplicate key + traditional SQL
mode

When the master was executing in sql_mode='traditional' (which
implies that really_abort_on_warning returns TRUE - because of
MODE_STRICT_ALL_TABLES), the error code (ER_DUP_ENTRY in the
reported case) was not being set in the
Query_log_event. Therefore, even if a failure was to be expected
when replaying the statement on the slave, a failure would occur,
because the Query_log_event was not transporting the expected
error code, but 0 instead.

This was because when the master was getting the error code to
set it in the Query_log_event, the executing thread would be
assumed to have been killed:
THD::killed==THD::KILL_BAD_DATA. This would make the error code
fetch routine not to check thd->main_da.sql_errno(), but instead
the thd->killed value. What's more, is that the server would
thd->killed value if thd->killed == THD::KILL_BAD_DATA and return
0 instead. So this is a double inconsistency, as the we should
not even check thd->killed but rather thd->main_da.sql_errno().

We fix this by extending the condition used to choose whether to
check the thd->main_da.sql_errno() or thd->killed, so that it
takes into consideration the case when:
thd->killed==THD::KILL_BAD_DATA.
2010-03-04 10:18:06 +00:00
Horst.Hunger
a75a9eb133 Push the test to next-mr-bar2 to let them run in pushbuild. 2010-03-04 08:34:44 +01:00
Alexander Nozdrin
0b1d317b23 A follow-up on WL#5154 and WL#5182: remove forgotten options. 2010-03-03 22:22:02 +03:00
Vladislav Vaintroub
87a1ad6310 merge 2010-03-03 15:48:54 +01:00
Luis Soares
d13db314dd BUG#51226: mysqlbinlog replay: ERROR 1146 when using temp tables
+ failing statements

Implicit DROP event for temporary table is not getting
LOG_EVENT_THREAD_SPECIFIC_F flag, because, in the previous
executed statement in the same thread, which might even be a
failed statement, the thread_specific_used flag is set to
FALSE (in mysql_reset_thd_for_next_command) and not set to TRUE
before connection is shutdown. This means that implicit DROP
event will take the FALSE value from thread_specific_used and
will not set LOG_EVENT_THREAD_SPECIFIC_F in the event header. As
a consequence, mysqlbinlog will not print the pseudo_thread_id
from the DROP event, because one of the requirements for the
printout is that this flag is set to TRUE.

We fix this by setting thread_specific_used whenever we are
binlogging a DROP in close_temporary_tables, and resetting it to
its previous value afterward.
2010-03-03 12:16:18 +00:00
Vladislav Vaintroub
cd03a4625f Bug #51488 :missing features and change behavior in cmake runs compared to
autotools runs
- Fix recognition of --with-debug=full in configure wrapper
- Remove CMakeCache.txt in configure wrapper, to match the original
- Fix recognition of max-no-ndb
- Fix broken dependencies of mysql_fix_privilege_table.sql from 
  mysql_system_tables.sql and mysql_system_tables_fix.sql
- Add "distclean target" that informs user about appropriate bzr command



cmake/configure.pl:
  - Recognize --with-debug=full, map to WITH_DEBUG_FULL
  - remove CMakeCache.txt, so the configuration is no more sticky
  (to match the original configure behavior)
cmake/plugin.cmake:
  - Recognize WITH_MAX_NO_NDB, this fixes missing storage engines after BUILD/*max-no-ndb scripts
mysql-test/CMakeLists.txt:
  test-force uses the same macros (MTR_FORCE) as test-bt* now
scripts/CMakeLists.txt:
  - Fix broken dependency when producing mysql_fix_privilege_tables.sql, reported by Davi.
  We now concatenate 2 scripts in custom command that
  has dependency on both scripts rather than concatenating them at cmake time.
sql/CMakeLists.txt:
  Address frequently asked question "where is distclean" by implementing distclean target 
  that does nothing except pointing to appropriate 
  bzr command.
  
  It is better not to call "bzr clean-tree" automatically, without user consent.
  It could clean new files that were meant to be added.
2010-03-03 12:29:34 +01:00
Sergey Vojtovich
1d2aeb3da2 BUG#48265 - MRG_MYISAM problem (works in 5.0.85, does't
work in 5.1.40)

MERGE engine fails to open child table from a different
database if child table/database name contains characters
that are subject for table name to filename encoding
(WL1324).

Another problem is that MERGE engine didn't properly open
child table from the same database if child table name
contains characters like '/', '#'.

The problem was that table name to file name encoding was
applied inconsistently:
* On CREATE: encode table name + database name if child
  table is in different database; do not encode table
  name if child table is in the same database;
* No decoding on open.

With this fix child table/database names are always
encoded on CREATE and decoded on open. Compatibility
with older tables preserved.

Along with this patch comes fix for SHOW CREATE TABLE,
which used to show child table/database path instead
of child table/database names.

mysql-test/r/merge.result:
  A test case for BUG#48265.
mysql-test/std_data/bug48265.frm:
  MERGE table from 5.0 to test fix for BUG#48265 compatibility.
mysql-test/t/merge.test:
  A test case for BUG#48265.
storage/myisammrg/ha_myisammrg.cc:
  On CREATE always write child table/database name encoded
  by table name to filename encoding to dot-MRG file.
  
  On open decode child table/database name.
  Compatibilty with previous versions preserved.
  
  Fixed ::append_create_info() to return child
  table/database name instead of path.
storage/myisammrg/myrg_open.c:
  Move if (has_path) branch from myrg_parent_open() to
  myisammrg_parent_open_callback. The callback function
  needs to know if child table was written along with
  database name to dot-MRG file. Needed for compatibility
  reasons.
2010-03-03 14:49:03 +04:00