and no WHERE condition were applied for any subquery without tables.
mysql-test/r/subselect.result:
Added a test case for bug #24670.
mysql-test/t/subselect.test:
Added a test case for bug #24670.
sql/item_subselect.cc:
Fixed bug #24670: optimizations that are legal only for subqueries without tables
and no WHERE condition were applied for any subquery without tables.
Removed an assertion that caused an abort for subqueries without tables and no
WHERE condition.
Blocked substitution of a single-row subquery without tables for the constant
row from its select list when the subquery contained a WHERE condition.
This optimization is valid only for subquries without tables with no conditions.
Any subquery without tables with WHERE clause returns NULL if the WHERE condition
is FALSE. Erroneously it was always considered as non-nullable that could trigger
another optimization concerning IS NULL predicates which is applicable only for
non-nullable expressions and ultimately led to a wrong result returned by the outer
query.
Added a proper implementation of the virtual method may_be_null for class
subselect_single_select_engine.
sql/item_subselect.h:
Fixed bug #24670: optimizations that are legal only for subqueries without tables
and no WHERE condition were applied for any subquery without tables.
Made method may_by_null for class subselect_engine vvirtual.
Bug#4968 "Stored procedure crash if cursor opened on altered table"
Bug#19733 "Repeated alter, or repeated create/drop, fails"
Bug#19182 "CREATE TABLE bar (m INT) SELECT n FROM foo; doesn't work from
stored procedure."
Bug#6895 "Prepared Statements: ALTER TABLE DROP COLUMN does nothing"
Bug#22060 "ALTER TABLE x AUTO_INCREMENT=y in SP crashes server"
Test cases for bugs 4968, 19733, 6895 will be added in 5.0.
Re-execution of CREATE DATABASE, CREATE TABLE and ALTER TABLE
statements in stored routines or as prepared statements caused
incorrect results (and crashes in versions prior to 5.0.25).
In 5.1 the problem occured only for CREATE DATABASE, CREATE TABLE
SELECT and CREATE TABLE with INDEX/DATA DIRECTOY options).
The problem of bugs 4968, 19733, 19282 and 6895 was that functions
mysql_prepare_table, mysql_create_table and mysql_alter_table were not
re-execution friendly: during their operation they used to modify contents
of LEX (members create_info, alter_info, key_list, create_list),
thus making the LEX unusable for the next execution.
In particular, these functions removed processed columns and keys from
create_list, key_list and drop_list. Search the code in sql_table.cc
for drop_it.remove() and similar patterns to find evidence.
The fix is to supply to these functions a usable copy of each of the
above structures at every re-execution of an SQL statement.
To simplify memory management, LEX::key_list and LEX::create_list
were added to LEX::alter_info, a fresh copy of which is created for
every execution.
The problem of crashing bug 22060 stemmed from the fact that the above
metnioned functions were not only modifying HA_CREATE_INFO structure in
LEX, but also were changing it to point to areas in volatile memory of
the execution memory root.
The patch solves this problem by creating and using an on-stack
copy of HA_CREATE_INFO (note that code in 5.1 already creates and
uses a copy of this structure in mysql_create_table()/alter_table(),
but this approach didn't work well for CREATE TABLE SELECT statement).
mysql-test/r/ps.result:
Update test results (Bug#19182, Bug#22060)
mysql-test/t/ps.test:
Add a test case for Bug#19182, Bug#22060 (4.1-only parts)
sql/mysql_priv.h:
LEX::key_list and LEX::create_list were moved to LEX::alter_info.
Update declarations to use LEX::alter_info instead of these two
members.
sql/sql_class.h:
Replace pair<columns, keys> with an instance of Alter_info in
select_create constructor. We create a new copy of Alter_info
each time we re-execute SELECT .. CREATE prepared statement.
sql/sql_insert.cc:
Adjust to a new signature of create_table_from_items.
sql/sql_lex.cc:
Implement Alter_info::Alter_info that would make a "deep" copy
of all definition lists (keys, columns).
sql/sql_lex.h:
Move key_list and create_list to class Alter_info. Implement
Alter_info::Alter_info that can be used with PS and SP.
sql/sql_list.h:
Implement a copy constructor of class List that makes a deep copy
of all list nodes.
sql/sql_parse.cc:
Adjust to new signatures of mysql_create_table, mysql_alter_table,
select_create. Functions mysql_create_index and mysql_drop_index has
become identical after initialization of alter_info was moved to the
parser, and were merged. Flag enable_slow_log was not updated for
SQLCOM_DROP_INDEX, which is a bug. Just like CREATE INDEX, DROP INDEX
is currently done via complete table rebuild and is rightfully a slow
administrative statement.
sql/sql_show.cc:
Adjust mysqld_show_create_db to a new signature.
sql/sql_table.cc:
Adjust mysql_alter_table, mysql_recreate_table, mysql_create_table,
mysql_prepare_table to new signatures.
sql/sql_yacc.yy:
LEX::key_list and LEX::create_list moved to class Alter_info
- Using DATA/INDEX DIRECTORY option on Windows put data/index file into
default directory because the OS doesn't support readlink().
- The procedure for changing data/index file directory is
different under Windows.
- With this fix we report a warning if DATA/INDEX option is used,
but OS doesn't support readlink().
mysql-test/r/windows.result:
- updated result file.
mysql-test/t/windows.test:
- Added test case to verify we get warnings if we specify DATA/INDEX
DIRECTORY on a platform which doesn't support readlink().
sql/sql_parse.cc:
- Added warnings if DATA/INDEX DIRECTORY option is used but not supported
by the target platform.
table
ROW_FORMAT option is lost during CREATE/DROP INDEX.
This fix forces CREATE/DROP INDEX to retain ROW_FORMAT by instructing
mysql_alter_table() that ROW_FORMAT is not used during creating/dropping
indexes.
mysql-test/r/alter_table.result:
A test case for bug#23404.
mysql-test/t/alter_table.test:
A test case for bug#23404.
sql/sql_parse.cc:
CREATE/DROP INDEX must not change ROW_FORMAT. Setting create_info.row_type
to ROW_TYPE_NOT_USED informs mysql_alter_table that ROW_FORMAT was not
used during alteration, and thus must be retained.
The problem is that the GEOMETRY NOT NULL can't automatically set
any value as a default one. We always tried to complete LOAD DATA
command even if there's not enough data in file. That doesn't work
for GEOMETRY NOT NULL. Now Field_*::reset() returns an error sign
and it's checked in mysql_load()
mysql-test/r/gis.result:
test result
mysql-test/t/gis.test:
testcase
sql/field.cc:
reset() now returns error sign
sql/field.h:
Field_*::reset() now returns error sign if the field can't be reset
sql/sql_load.cc:
check if field can't be reset and return error if it's so
Problem: storing >=8 byte hexadecimal values we don't check data.
Fix: check if the data fits the {u}longlong range.
mysql-test/r/select.result:
Fix for bug #22533: Traditional: Too-long bit value not rejected.
- test result.
mysql-test/t/range.test:
Fix for bug #22533: Traditional: Too-long bit value not rejected.
- adjusted.
mysql-test/t/select.test:
Fix for bug #22533: Traditional: Too-long bit value not rejected.
- test case.
sql/item.cc:
Fix for bug #22533: Traditional: Too-long bit value not rejected.
- limit storing value to {U}LONGLONG_MAX in numeric context.
Problem: replication of LC_TIME_NAMES didn't work.
Thus, INSERTS or UPDATES using date_format() always
worked with en_US on the slave side.
Fix: adding ONE_SHOT implementation for LC_TIME_NAMES.
mysql-test/r/variables.result:
Adding various tests with LC_TIME_NAMES and
string and numeric constants and expressions.
mysql-test/t/variables.test:
Adding various tests with LC_TIME_NAMES and
string and numeric constants and expressions.
sql/log.cc:
Adding ONE_SHOT trick for lc_time_names.
sql/mysql_priv.h:
Adding new member "number" - for unique locale IDs.
Adding prototype for my_locale_by_number().
sql/set_var.cc:
Modifying lc_time_names variable to understand both:
- string valyes (using locale name)
- number values (using locale IDs)
sql/set_var.h:
- Marking lc_time_names as ONE_SHOT capable.
- Marking lc_time_names as INT_RESULT compatible.
sql/sql_locale.cc:
- adding local IDs
- better layout for locale data declarations
(splitting long lines into short ones)
- adding DBUG_ASSERT into my_locale_by_name()
and moving this function towards the end of file -
after "my_locales" declaration
- adding my_locale_by_number() implementation
sql/sql_parse.cc:
Adding initialization of lc_time_names
to its default value (en_US)
mysql-test/r/rpl_locale.result:
Adding test case
mysql-test/t/rpl_locale.test:
Adding test case
into neptunus.(none):/home/msvensson/mysql/mysql-4.1-maint
Makefile.am:
Auto merged
client/mysqltest.c:
Auto merged
mysql-test/lib/mtr_process.pl:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
sql/mysqld.cc:
Auto merged
Set null_value in case of wrong data.
mysql-test/r/cast.result:
fix for bug #23938: ISNULL on DATE AND CAST AS DATE returns false for null values
- test result.
mysql-test/t/cast.test:
fix for bug #23938: ISNULL on DATE AND CAST AS DATE returns false for null values
- test case.
sql/item_timefunc.cc:
fix for bug #23938: ISNULL on DATE AND CAST AS DATE returns false for null values
- set null_value in case of error.
This error is displayed anytime the SELECT statement needs a temp table to
return correct results because the object (select_dumpvar) that represents
variables named in the INTO clause stored the results before the temp
table was considered. The problem was fixed by creating the necessary
Item_func_set_user_var objects once the correct data is ready.
mysql-test/r/distinct.result:
Bug#20836 Selecting into variables results in wrong results being returned
- Added results
mysql-test/t/distinct.test:
Bug#20836 Selecting into variables results in wrong results being returned
- Added various Selects that use the INTO statement and a temp table.
- Added Select Into Outfile variant tests also.
sql/sql_class.cc:
Bug#20836 Selecting into variables results in wrong results being returned
- The select_dumpvar variable created a Item_func_set_user_var too early
and once set, it was not possible to change. The Item_func_set_user_var
is now created once the final results are available.
sql/sql_class.h:
Bug#20836 Selecting into variables results in wrong results being returned
- Removed unnecessary object members.
ALTER TABLE DISABLE KEYS doesn't work when modifying the table
ENABLE|DISABLE KEYS combined with another ALTER TABLE option, different
than RENAME TO did nothing. Also, if the table had disabled keys
and was ALTER-ed then the end table was with enabled keys.
Fixed by checking whether the table had disabled keys and enabling them
in the copied table.
myisam/mi_open.c:
Extend mi_indexes_are_disabled to implement return value
2 - Non-unique indexes are disabled
mysql-test/r/alter_table.result:
update result
mysql-test/t/alter_table.test:
update test
sql/sql_table.cc:
When ENABLE|DISABLE index is combined with another option
different than RENAME TO, we should ENABLE|DISABLE the keys of
the modified table. Also when modifying we should preserve the
previous state of the indices.
(This problem exists in 5.0 and 5.1 but since the codebase has
diverged, this fix won't automerge, but the fix will be quite
similar).
into neptunus.(none):/home/msvensson/mysql/mysql-4.1-maint
mysql-test/Makefile.am:
Auto merged
mysql-test/r/func_time.result:
Auto merged
mysql-test/t/func_time.test:
Auto merged
sql-common/my_time.c:
Auto merged
sql/item_timefunc.cc:
Auto merged
mysql-test/mysql-test-run-shell.sh:
Auto merged
mysql-test/mysql-test-run.pl:
Manual merge of changes for RPM
expression cols.
The problem was that MYSQL_FIELD::org_name was set for MIN() and MAX()
functions (COUNT() is also mentioned in the bug report but was already
fixed).
After this patch for expressions MYSQL_FIELD::name is set to either
expression itself or its alias, and other data origin fields of
MYSQL_FILED (db, org_table, table, org_name) are empty strings.
sql/item_sum.cc:
For expressions only col_name should be non-empty string.
tests/mysql_client_test.c:
Add test case for bug#21635: MYSQL_FIELD struct's member strings seem
to misbehave for expression cols.
into mysql.com:/usr/home/ram/work/bug22029/my41-bug22029
mysql-test/r/date_formats.result:
Auto merged
mysql-test/t/date_formats.test:
Auto merged
sql/item_timefunc.cc:
Auto merged
Make Prepared_stmt_count a global status variable, accessible via
SHOW STATUS LIKE 'Prepared_stmt_count';. Documentation should be
updated.
mysql-test/r/ps.result:
Update result for bug#16365: Prepared Statements: DoS with too many
open statements, according to bug#23159: prepared_stmt_count should be
status variable.
mysql-test/t/ps.test:
Update test case for bug#16365: Prepared Statements: DoS with too many
open statements, according to bug#23159: prepared_stmt_count should be
status variable.
sql/mysqld.cc:
Add Prepared_stmt_count as global status variable.
sql/set_var.cc:
Remove prepared_stmt_count as system variable.
into mysql.com:/home/hf/work/mysql-4.1-mrg
include/mysql.h:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/t/rename.test:
Auto merged
mysql-test/t/subselect.test:
Auto merged
sql-common/client.c:
Auto merged
sql/sql_class.h:
Auto merged
Makefile.am:
merging
client/mysqltest.c:
merging
mysql-test/t/mysql_client.test:
merging
There was an improper order of doing chained operations.
To the documentor: ENABLE|DISABLE KEYS combined with RENAME TO, and no other
ALTER TABLE clause, leads to server crash independent of the presence of
indices and data in the table.
mysql-test/r/alter_table.result:
update result
mysql-test/t/alter_table.test:
add test for bug#24129
sql/sql_table.cc:
If there is operation on the KEYS, first do it
and then do a rename if there is such. Or, we will crash because
the underlying table has changed.
The problem was that some functions (namely IN() starting with 4.1, and
CHAR() starting with 5.0) were returning NULL in certain conditions,
while they didn't set their maybe_null flag. Because of that there could
be some problems with 'IS NULL' check, and statements that depend on the
function value domain, like CREATE TABLE t1 SELECT 1 IN (2, NULL);.
The fix is to set maybe_null correctly.
mysql-test/r/func_in.result:
Add result for bug#17047: CHAR() and IN() can return NULL without
signaling NULL result.
mysql-test/t/func_in.test:
Add test case for bug#17047: CHAR() and IN() can return NULL without
signaling NULL result.
sql/item_cmpfunc.cc:
Remove assignment to maybe_null, as it was already set in fix_fields()
based on all arguments, not only on the first.
The server sends a number of columns to the client.
It uses a limited "fast" function for that instead of the
general one. This fast function cannot send numbers larger
than 2 bytes.
This causes the client to expect smaller number of columns.
The client writes outside of the allocated memory buffer
as a result.
Fixed the server to use the general function to send column
count.
Fixed the client to check the column count before writing
column data.
mysql-test/t/mysql_client.test:
Bug #19216: Client crashes on long SELECT
- test case
sql/protocol.cc:
Bug #19216: Client crashes on long SELECT
- renamed the function for bether comprehention
and made it local
- used the right (non-local) function to transfer
the column count in Protocol::send_fields
sql/protocol.h:
Bug #19216: Client crashes on long SELECT
- made optimized net_store_length local
sql-common/client.c:
Bug #19216: Client crashes on long SELECT
- fixed the client to check for older servers (without the fix).
libmysqld/examples/test-run:
mysql_embedded should be run here
libmysqld/lib_sql.cc:
thd->real_id setup added
bootstrap check added
mysql-test/t/innodb.test:
paths can be different in embedded server - replace_result added
sql/item_func.cc:
we should compare real_id-s in embedded server
Support says that memlock doesn't work on OSes other than Solaris.
Add a warning about --memlock to the crash monologue.
sql/mysqld.cc:
On a crash when --memlock was active, emit advice about the insta-
bility of that parameter.
into outpost.site:/home/cps/mysql/trees/4.1-runtime-bug9191
configure.in:
Auto merged
include/my_time.h:
Auto merged
mysql-test/r/func_time.result:
Auto merged
mysql-test/r/rename.result:
Auto merged
mysql-test/t/func_time.test:
Auto merged
sql-common/my_time.c:
Auto merged
sql/item_timefunc.cc:
Auto merged
sql/time.cc:
Auto merged
mysql-test/t/rename.test:
choose one of the race problem solutions. It was solved
differently in -runtime and mainstream
As get_arg0_date() in the Item_func_last_day::get_date() returns
0000-00-00 date sometimes, we have to check ltime->month for 0 after the call.
mysql-test/r/func_time.result:
Fix for bug #23653: Crash if last_day('0000-00-00')
- test result.
mysql-test/t/func_time.test:
Fix for bug #23653: Crash if last_day('0000-00-00')
- test case.
sql/item_timefunc.cc:
Fix for bug #23653: Crash if last_day('0000-00-00')
- return error if month is 0.
Problem: After introducing of LC_TIME_NAMES variable, the
function date_format() can return international non-ascii
characters in month and weekday names. Thus, it cannot return
a binary string anymore, because inserting a result of date_format()
into a column with non-utf8 character set produces garbage.
Fix: date_format() now returns a character string, using
"collation_connection" to detect character set and collation
for the returned value. This allows to insert
results of date_format() properly into columns with
various character sets.
mysql-test/r/ctype_utf8.result:
Adding test case.
Fixing old result.
mysql-test/t/ctype_utf8.test:
Adding test case.
sql/item_timefunc.cc:
DATE_FORMAT() now returns a character string
instead of binary string:
- make_date_time() now converts localte data from UTF8 to
the character set of "str" argument, instead of copying as is.
- fix_dec_and_length() now uses "collation_connection"
instead of "binary" for the result, it also now
multiplies to mbmaxlen when calculating max_length
