Item_func_div didn't calculate the precision of the result properly.
The result of 5/0.0001 is 5000 so we have to add decimals of the divisor
to the planned precision.
per-file comments:
mysql-test/r/type_newdecimal.result
Bug#31616 div_precision_increment description looks wrong
test result fixed
mysql-test/t/type_newdecimal.test
Bug#31616 div_precision_increment description looks wrong
test case
sql/item_func.cc
Bug#31616 div_precision_increment description looks wrong
precision must be increased with args[1]->decimals parameter
tables can cause server to crash!
The bug will be fixed by patch for #34779: "crash in checksum table
on federated tables with blobs containing nulls"
Only a test case commited.
mysql-test/r/federated.result:
Test case for bug #34774: key prefix on text field in federated
tables can cause server to crash!
- test result.
mysql-test/t/federated.test:
Test case for bug #34774: key prefix on text field in federated
tables can cause server to crash!
- test case.
when InnoDB frm file corruption
Problem: mysqlcheck runs 'SHOW FULL TABLE' queries to get table lists.
The query may fail for some reasons (e.g. null .frm file) then
mysqlcheck doesn't process the database tables.
Fix: try to run 'SHOW TABLES' if 'SHOW FULL TABLES' failed.
client/mysqlcheck.c:
Fix for bug#37527: mysqlcheck fails to report entire database
when InnoDB frm file corruption
- run "SHOW TABLES" query if "SHOW /*!50002 FULL*/ TABLES" failed;
- print error info if both failed.
mysql-test/r/mysqlcheck.result:
Fix for bug#37527: mysqlcheck fails to report entire database
when InnoDB frm file corruption
- test result.
mysql-test/t/mysqlcheck.test:
Fix for bug#37527: mysqlcheck fails to report entire database
when InnoDB frm file corruption
- test case.
Reordered include files so that no mess will be left if this test is run without InnoDB
Previously, this test would leave a database named 'federated' in such a case and would
cause tests that examined existing databases to fail.
issue 'The storage engine for the table doesn't support check' note for I_S tables
mysql-test/r/mysqlcheck.result:
test result
mysql-test/t/mysqlcheck.test:
test case
sql/sql_table.cc:
issue 'The storage engine for the table doesn't support check' note for I_S tables
With fix for bug 25951 index hints are ignored for fulltext
searches, as handling of fulltext indexes is different from
handling regular indexes. Meaning it is not possible to
implement true index hints support for fulltext indexes within
the scope of current fulltext architecture.
The problem is that prior to fix for bug 25951, some useful
index hints still could be given for boolean mode searches.
This patch implements special index hints support for fulltext
indexes with the following characteristics:
- all index hints are still ignored for NLQ mode searches -
it cannot work without an index;
- for 5.1 and up index hints FOR ORDER BY and FOR GROUP BY are
still ignored for fulltext indexes;
- boolean mode searches honor USE/FORCE/IGNORE INDEX hints;
- as opposed to index hints for regular indexes, index hints
for fulltext BOOLEAN mode searches affect the usage of the
index for the whole query.
mysql-test/r/fulltext.result:
A test case for BUG#38842.
mysql-test/t/fulltext.test:
A test case for BUG#38842.
sql/item_func.cc:
For boolean mode searches, which can work without fulltext
index, use keys_in_use_for_query bitmap instead of keys_in_use.
The effect is that boolean mode searches now honor index hints.
implicit command which isn't completed immediately.
mysql-test/r/status2.result:
* Moved disconnect command to avoid race.
mysql-test/t/status2.test:
* Moved disconnect command to avoid race.
A string buffers which were included in the 'view' data structure
were allocated on the stack, causing an invalid pointer when used
after the function returned.
The fix: use copy of values for view->md5 & view->queries
mysql-test/r/view.result:
test result
mysql-test/t/view.test:
test case
sql/sql_view.cc:
A string buffers which were included in the 'view' data structure
were allocated on the stack, causing an invalid pointer when used
after the function returned.
The fix: use copy of values for view->md5 & view->queries
- Make send_row_on_empty_set() return FALSE when simplify_cond() has found out
that HAVING is always FALSE
re-committing to put the fix into 5.0 and 5.1
mysql-test/r/group_by.result:
BUG#38072: Wrong result: HAVING not observed in a query with aggregate
- Testcase
mysql-test/t/group_by.test:
BUG#38072: Wrong result: HAVING not observed in a query with aggregate
- Testcase
sql/sql_select.h:
BUG#38072: Wrong result: HAVING not observed in a query with aggregate
- Make send_row_on_empty_set() return FALSE when simplify_cond() has found out
that HAVING is always FALSE
The problem was that the server did not robustly handle a
unilateral roll back issued by the Resource Manager (RM)
due to a resource deadlock within the transaction branch.
By not acknowledging the roll back, the server (TM) would
eventually corrupt the XA transaction state and crash.
The solution is to mark the transaction as rollback-only
if the RM indicates that it rolled back its branch of the
transaction.
mysql-test/r/xa.result:
Add test case result for Bug#28323
mysql-test/t/xa.test:
Add test case for Bug#28323
sql/handler.cc:
Reset XID only at the end of the global transaction.
sql/share/errmsg.txt:
Add new error codes.
sql/sql_class.h:
Remember the error reported by the Resource Manager.
sql/sql_parse.cc:
Rollback the transaction if the Resource Manager reported
a error and rolled back its branch of the transaction.
The problem was that the server did not robustly handle a
unilateral roll back issued by the Resource Manager (RM)
due to a resource deadlock within the transaction branch.
By not acknowledging the roll back, the server (TM) would
eventually corrupt the XA transaction state and crash.
The solution is to mark the transaction as rollback-only
if the RM indicates that it rolled back its branch of the
transaction.
mysql-test/r/xa.result:
Add test case result for Bug#28323
mysql-test/t/xa.test:
Add test case for Bug#28323
sql/handler.cc:
Reset XID only at the end of the global transaction.
sql/share/errmsg.txt:
Add new error codes.
sql/sql_class.h:
Remember the error reported by the Resource Manager.
sql/sql_parse.cc:
Rollback the transaction if the Resource Manager reported
a error and rolled back its branch of the transaction.
fails after the first time
Two separate problems :
1. When flattening joins the linked list used for name resolution
(next_name_resolution_table) was not updated.
Fixed by updating the pointers when extending the table list
2. The items created by expanding a * (star) as a column reference
were marked as fixed, but no cached table was assigned to them
(unlike what Item_field::fix_fields does).
Fixed by assigning a cached table (so the re-preparation is done
faster).
Note that the fix for #2 hides the fix for #1 in most cases
(except when a table reference cannot be cached).
mysql-test/r/sp.result:
Bug #33811: test case
mysql-test/t/sp.test:
Bug #33811: test case
sql/sql_base.cc:
Bug #33811: cache the table for Item_fields created by expanding '*'
sql/sql_select.cc:
Bug #33811: maintain a correct name resolution chain when
flattening joins.
Server crashed during a sort order optimization
of a dependent subquery:
SELECT
(SELECT t1.a FROM t1, t2
WHERE t1.a = t2.b AND t2.a = t3.c
ORDER BY t1.a)
FROM t3;
Bitmap of tables, that the reference to outer table
column uses, in addition to the regular table bit
has the OUTER_REF_TABLE_BIT bit set.
The only_eq_ref_tables function traverses this map
bit by bit simultaneously with join->map2table list.
Obviously join->map2table never contains an entry
for the OUTER_REF_TABLE_BIT pseudo-table, so the
server crashed there.
The only_eq_ref_tables function has been modified
to traverse regular table bits only like the
update_depend_map function (resetting of the
OUTER_REF_TABLE_BIT there is enough, but
resetting of the whole set of PSEUDO_TABLE_BITS
is used there for sure).
mysql-test/r/order_by.result:
Added test case for bug #39844.
mysql-test/t/order_by.test:
Added test case for bug #39844.
sql/sql_select.cc:
Bug #39844: Query Crash Mysql Server 5.0.67
The only_eq_ref_tables function has been modified
to traverse regular table bits only like the
update_depend_map function (resetting of the
OUTER_REF_TABLE_BIT there is enough, but
resetting of the whole set of PSEUDO_TABLE_BITS
is used there for sure).
Added the missing DROP TABLE
mysql-test/r/windows.result:
Bug #39958: added the missing DROP TABLE
mysql-test/t/windows.test:
Bug #39958: added the missing DROP TABLE
The problem is that the offset argument of the limit clause
might be truncated on a 32-bits server built without big
tables support. The truncation was happening because the
original 64-bits long argument was being cast to a 32-bits
(ha_rows) offset counter.
The solution is to check if the conversing resulted in value
truncation and if so, the offset is set to the maximum possible
value that can fit on the type.
mysql-test/r/limit.result:
Add test case result for Bug#37075
mysql-test/t/limit.test:
Add test case for Bug#37075
sql/sql_lex.cc:
Check for truncation of the offset value. If value was
truncated, set to the maximum possible value.
If delayed insert fails to upgrade the lock it was not
freeing the temporary memory storage used to keep
newly constructed blob values in memory.
Fixed by iterating over the remaining rows in the delayed
insert rowset and freeing the blob storage for each row.
No test suite because it involves concurrent delayed inserts
on a table and cannot easily be made deterministic.
Added a correct valgrind suppression for Fedora 9.
mysql-test/valgrind.supp:
Added a vagrind suppression for Fedora 9
sql/sql_insert.cc:
Bug #38693: free the blobs temp storage on error.
The problem is that field names constructed due to wild-card
expansion done inside a stored procedure could point to freed
memory if the expansion was performed after the first call to
the stored procedure.
The problem was solved by patch for Bug#38691. The solution
was to allocate the database, table and field names in the
in the statement memory instead of table memory.
mysql-test/r/sp.result:
Add test case result for Bug#38823
mysql-test/t/sp.test:
Add test case for Bug#38823
sql/item.cc:
Remark that this also impacts wildcard expansion inside SPs.
Select with a "NULL NOT IN" condition containing complex
subselect from the same table as in the outer select failed
with an assertion.
The failure was caused by a concatenation of circumstances:
1) an inner select was optimized by make_join_statistics to use
the QUICK_RANGE_SELECT access method (that implies an index
scan of the table);
2) a subselect was independent (constant) from the outer select;
3) a condition was pushed down into inner select.
During the evaluation of a constant IN expression an optimizer
temporary changed the access method from index scan to table
scan, but an engine handler was already initialized for index
access by make_join_statistics. That caused an assertion.
Unnecessary index initialization has been removed from
the QUICK_RANGE_SELECT::init method (QUICK_RANGE_SELECT::reset
reinvokes this initialization).
mysql-test/r/subselect3.result:
Added test case for bug #37894.
mysql-test/t/subselect3.test:
Added test case for bug #37894.
sql/opt_range.cc:
Bug #37894: Assertion in init_read_record_seq in handler.h line 1444
Unnecessary index initialization has been removed from
the QUICK_RANGE_SELECT::init method (QUICK_RANGE_SELECT::reset
reinvokes this initialization).
with COALESCE and JOIN
The server returned to a client the VARBINARY column type
instead of the DATE type for a result of the COALESCE,
IFNULL, IF, CASE, GREATEST or LEAST functions if that result
was filesorted in an anonymous temporary table during
the query execution.
For example:
SELECT COALESCE(t1.date1, t2.date2) AS result
FROM t1 JOIN t2 ON t1.id = t2.id ORDER BY result;
To create a column of various date/time types in a
temporary table the create_tmp_field_from_item() function
uses the Item::tmp_table_field_from_field_type() method
call. However, fields of the MYSQL_TYPE_NEWDATE type were
missed there, and the VARBINARY columns were created
by default.
Necessary condition has been added.
mysql-test/r/metadata.result:
Added test case for bug #39283.
mysql-test/t/metadata.test:
Added test case for bug #39283.
sql/sql_select.cc:
Bug #39283: Date returned as VARBINARY to client for queries
with COALESCE and JOIN
To create a column of various date/time types in a
temporary table the create_tmp_field_from_item() function
uses the Item::tmp_table_field_from_field_type() method
call. However, fields of the MYSQL_TYPE_NEWDATE type were
missed there, and the VARBINARY columns were created
by default.
Necessary condition has been added.
derived table cause crash
When a multi-UPDATE command fails to lock some table, and
subsequently succeeds, the tables need to be reopened if
they were altered. But the reopening procedure failed for
derived tables.
Extra cleanup has been added.
mysql-test/r/lock_multi.result:
Added test case for bug #38499.
mysql-test/t/lock_multi.test:
Added test case for bug #38499.
sql/sql_union.cc:
Bug#38499: flush tables and multitable table update with
derived table cause crash
Obsolete assertion has been removed.
sql/sql_update.cc:
Bug#38499: flush tables and multitable table update with
derived table cause crash
Extra cleanup for derived tables has been added:
1) unit.cleanup(),
2) unit->reinit_exec_mechanism().
When running Stored Routines the Status Variable "Questions" was wrongly
incremented. According to the manual it should contain the "number of
statements that clients have sent to the server"
Introduced a new status variable 'questions' to replace the query_id
variable which currently corresponds badly with the number of statements
sent by the client.
The new behavior is ment to be backward compatible with 4.0 and at the
same time work with new features in a similar way.
This is a backport from 6.0
mysql-test/r/status2.result:
Added test case
mysql-test/t/status2.test:
Added test case
sql/mysqld.cc:
Introduced a new status variable 'questions' to replace the query_id
variable which currently corresponds badly with the number of statements
sent by the client.
sql/sql_class.h:
Introduced a new status variable 'questions' to replace the query_id
variable which currently corresponds badly with the number of statements
sent by the client.
sql/sql_parse.cc:
To be backward compatible with 4.0 and at the same time extend the
interpretation of the Question variable, it should be increased on
all COM-commands but COM_STATISTICS, COM_PING, COM_STMT_PREPARE,
COM_STMT_CLOSE and COM_STMT_RESET.
Since COM_QUERY can process multiple statements, there has to be an
extra increase there as well.
sql/sql_show.cc:
Removed deprecated SHOW_QUESTION status code.
sql/structs.h:
Removed deprecated SHOW_QUESTION status code.
``FLUSH TABLES WITH READ LOCK''
Concurrent execution of 1) multitable update with a
NATURAL/USING join and 2) a such query as "FLUSH TABLES
WITH READ LOCK" or "ALTER TABLE" of updating table led
to a server crash.
The mysql_multi_update_prepare() function call is optimized
to lock updating tables only, so it postpones locking to
the last, and if locking fails, it does cleanup of modified
syntax structures and repeats a query analysis. However,
that cleanup procedure was incomplete for NATURAL/USING join
syntax data: 1) some Field_item items pointed into freed
table structures, and 2) the TABLE_LIST::join_columns fields
was not reset.
Major change:
short-living Field *Natural_join_column::table_field has
been replaced with long-living Item*.
mysql-test/r/lock_multi.result:
Added test case for bug #38691.
mysql-test/t/lock_multi.test:
Added test case for bug #38691.
sql/item.cc:
Bug #38691: segfault/abort in ``UPDATE ...JOIN'' while
``FLUSH TABLES WITH READ LOCK''
The Item_field constructor has been modified to allocate
and copy original database/table/field names always (not
during PS preparation/1st execution only), because
an initialization of Item_field items with a pointer to
short-living Field structures is a common practice.
sql/sql_base.cc:
Bug #38691: segfault/abort in ``UPDATE ...JOIN'' while
``FLUSH TABLES WITH READ LOCK''
1) Type adjustment for Natural_join_column::table_field
(Field to Item_field);
2) The setup_natural_join_row_types function has been
updated to take into account new
first_natural_join_processing flag to skip unnecessary
reinitialization of Natural_join_column::join_columns
during table reopening after lock_tables() failure
(like the 'first_execution' flag for PS).
sql/sql_lex.cc:
Bug #38691: segfault/abort in ``UPDATE ...JOIN'' while
``FLUSH TABLES WITH READ LOCK''
Initialization of the new
st_select_lex::first_natural_join_processing flag has
been added.
sql/sql_lex.h:
Bug #38691: segfault/abort in ``UPDATE ...JOIN'' while
``FLUSH TABLES WITH READ LOCK''
The st_select_lex::first_natural_join_processing flag
has been added to skip unnecessary rebuilding of
NATURAL/USING JOIN structures during table reopening
after lock_tables failure.
sql/sql_update.cc:
Bug #38691: segfault/abort in ``UPDATE ...JOIN'' while
``FLUSH TABLES WITH READ LOCK''
Extra cleanup calls have been added to reset
Natural_join_column::table_field items.
sql/table.cc:
Bug #38691: segfault/abort in ``UPDATE ...JOIN'' while
``FLUSH TABLES WITH READ LOCK''
Type adjustment for Natural_join_column::table_field
(Field to Item_field).
sql/table.h:
Bug #38691: segfault/abort in ``UPDATE ...JOIN'' while
``FLUSH TABLES WITH READ LOCK''
Type of the Natural_join_column::table_field field has
been changed from Field that points into short-living
TABLE memory to long-living Item_field that can be
linked to (fixed) reopened table.
mysql-test-run.pl --start-and-exit starts but does not exit
Instead, it hangs with ActiveState perl. The error is
believed to be a bug in ActiveState implementation.
Workaround is using POSIX::_exit, as described here
http://www.perlmonks.org/?node_id=334610
Thanks to Philip Stoev for the idea of the patch.
The '@' symbol can not be used in the host name according to rfc952.
The fix:
added function check_host_name(LEX_STRING *str)
which checks that all symbols in host name string are valid and
host name length is not more than max host name length
(just moved check_string_length() function from the parser into check_host_name()).
mysql-test/r/create.result:
test result
mysql-test/t/create.test:
test case
sql/mysql_priv.h:
added function check_host_name(LEX_STRING *str)
sql/sql_parse.cc:
added function check_host_name(LEX_STRING *str)
which checks that all symbols in host name string are valid and
host name length is not more than max host name length(HOSTNAME_LENGTH).
sql/sql_yacc.yy:
using newly added function check_host_name()
The problem:
I_S views table does not check the presence of SHOW_VIEW_ACL|SELECT_ACL
privileges for a view. It leads to discrepancy between SHOW CREATE VIEW
and I_S.VIEWS.
The fix:
added appropriate check.
mysql-test/r/information_schema_db.result:
test result
mysql-test/t/information_schema_db.test:
test case
sql/sql_show.cc:
The problem:
I_S views table does not check the presence of SHOW_VIEW_ACL|SELECT_ACL
privileges for a view. It leads to discrepancy between SHOW CREATE VIEW
and I_S.VIEWS.
The fix:
added appropriate check.
When analyzing the possible index use cases the server was re-using an internal structure.
This is wrong, as this internal structure gets updated during the analysis.
Fixed by making a copy of the internal structure for every place it needs to be used.
Also stopped the generation of empty SEL_TREE structures that unnecessary
complicate the analysis.
mysql-test/r/index_merge.result:
Bug#37943: test case
mysql-test/t/index_merge.test:
Bug#37943: test case
sql/opt_range.cc:
Bug#37943:
- Make copy constructors for SEL_TREE and sub-structures and use them when OR-ing trees.
- don't generate empty SEL_TREEs. Return NULL instead.
from stored procedure.
Problem: we replace all references to local variables in stored procedures
with NAME_CONST(name, value) logging to the binary log. However, if the
value's collation differs we might get an 'illegal mix of collation'
error as we don't pass the collation to the function.
Fix: pass the value's collation to NAME_CONST().
Note: actually we should pass to NAME_CONST() the value's derivation as well.
It's impossible without the parser modifying. Now we always set the
derivation to DERIVATION_IMPLICIT, the same as local variables have.
mysql-test/r/binlog.result:
Fix for bug#39182: Binary log producing incompatible character set query
from stored procedure.
- test result.
mysql-test/r/ctype_cp932_binlog.result:
Fix for bug#39182: Binary log producing incompatible character set query
from stored procedure.
- results adjusted.
mysql-test/r/rpl_sp.result:
Fix for bug#39182: Binary log producing incompatible character set query
from stored procedure.
- results adjusted.
mysql-test/t/binlog.test:
Fix for bug#39182: Binary log producing incompatible character set query
from stored procedure.
- test case.
sql/item.cc:
Fix for bug#39182: Binary log producing incompatible character set query
from stored procedure.
- allow NAME_CONST() to get _charset'foo' COLLATE 'bar' strings
(see Item_func_set_collation).
sql/sp_head.cc:
Fix for bug#39182: Binary log producing incompatible character set query
from stored procedure.
- pass the value's collation to NAME_CONST().
