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- Backport patch from 5.0
sql/mysqld.cc:
Add else case to set "lower_case_file_system" also when lower_case_table_names are 1
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into zippy.cornsilk.net:/home/cmiller/work/mysql/m41-maint--07OBQ
sql/set_var.cc:
Auto merged
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into rolltop.ignatz42.dyndns.org:/mnt/storeage/mysql-4.1-maint_bug16180
sql/set_var.cc:
Auto merged
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into rolltop.ignatz42.dyndns.org:/mnt/storeage/mysql-4.1_bug16180
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mysql-test/r/grant2.result:
Added results for bug#16180
mysql-test/t/grant2.test:
Added test for bug# 16180
sql/set_var.cc:
Verify user has appropiate rights before setting the sql_log_off system variable.
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into moonbone.local:/work/tmp_merge-4.1-opt-mysql
sql/item_strfunc.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
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into rakia.(none):/home/kgeorge/mysql/autopush/B20792-4.1-opt
sql/sql_select.cc:
Auto merged
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into rakia.(none):/home/kgeorge/mysql/autopush/B20792-4.1-opt
sql/sql_select.cc:
Auto merged
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When processing aggregate functions all tables values are reset
to NULLs at the end of each group.
When doing that if there are no rows found for a group
the const tables must not be reset as they are not recalculated
by do_select()/sub_select() for each group.
mysql-test/r/subselect2.result:
* Bug #20792: Incorrect results from aggregate subquery
- test suite for the bug. This is dependent on InnoDB despite
the fact that the bug and the fix are not InnoDB specific.
This is because of the table flag HA_NOT_EXACT_COUNT.
When this flag is off (as in MyISAM) both t2 and t3 become of
join type 'system' as they are estimated to have 1 record and
and this statistics can be trusted (according to the absence of
HA_NOT_EXACT_COUNT).
mysql-test/t/subselect2.test:
* Bug #20792: Incorrect results from aggregate subquery
- test suite for the bug
sql/sql_select.cc:
* Bug #20792: Incorrect results from aggregate subquery
- when clearing results if there are not rows found for group
the const tables must not be reset as they are not recalculated
for each group.
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into rakia.(none):/home/kgeorge/mysql/autopush/B21019-4.1-opt
sql/sql_select.cc:
Auto merged
mysql-test/r/select.result:
SCCS merged
mysql-test/t/select.test:
SCCS merged
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When optimizing conditions like 'a = <some_val> OR a IS NULL' so that they're
united into a single condition on the key and checked together the server must
check which value is the NULL value in a correct way : not only using ->is_null
but also check if the expression doesn't depend on any tables referenced in the
current statement.
This additional check must be performed because that optimization takes place
before the actual execution of the statement, so if the field was initialized
to NULL from a previous statement the optimization would be applied incorrectly.
mysql-test/r/select.result:
Bug #21019: First result of SELECT COUNT(*) different than consecutive runs
- test case
mysql-test/t/select.test:
Bug #21019: First result of SELECT COUNT(*) different than consecutive runs
- test case.
Note that ALTER TABLE is important here : it happens to
leave the Field instance for t1.b set to NULL, witch is vital for
demonstrating the problem fixed by this changeset.
sql/sql_select.cc:
Bug #21019: First result of SELECT COUNT(*) different than consecutive runs
- check whether a value is null taking into account its table dependency.
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The problem was in that opt_sum_query() replaced MIN/MAX functions
with the corresponding constant found in a key, but due to imprecise
representation of float numbers, when evaluating the where clause,
this comparison failed.
When MIN/MAX optimization detects that all tables can be removed,
also remove all conjuncts in a where clause that refer to these
tables. As a result of this fix, these conditions are not evaluated
twice, and in the case of float number comparisons we do not discard
result rows due to imprecise float representation.
As a side-effect this fix also corrects an unnoticed problem in
bug 12882.
mysql-test/r/func_group.result:
BUG#20954 - test result adjustment.
Adjusted the test result of bug 12882 which was not preperly fixed.
The current patch corrects the problem that was fully corrected by the
patch for 12882.
The problem was that opt_sum_query() indicated that the optimizer may
remove all tables because all MIN/MAX/COUNT functions are constants,
but this lead to an empty result instead of NULL because the WHERE
clause was still evaluated.
The current fix removes all conjuncts in the where clause that
reference the removed tables, and thus corrects the problem.
mysql-test/r/select.result:
BUG#20954 - added test
mysql-test/r/subselect.result:
BUG#20954 - test result adjustment.
The fix removes those conditions in a where clause that refer to
tables optimized away by MIN/MAX optimization (opt_sum_query()).
mysql-test/t/select.test:
BUG#20954 - added test
sql/sql_select.cc:
Fix for BUG#20954: avg(keyval) retuns 0.38 but max(keyval) returns an empty set
When MIN/MAX optimization detects that all tables can be removed,
also remove all conjuncts in a where clause that refer to these
tables. As a result of this fix, these conditions are not evaluated
twice, and in the case of float number comparisons we do not discard
result rows due to imprecise float representation.
As a side-effect this fix also corrects an unnoticed problem in
bug 12882.
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Add implementations of Item_func_{nop,not}_all::neg_transformer
mysql-test/r/subselect.result:
BUG#20975: testcase
mysql-test/t/subselect.test:
BUG#20975: testcase
sql/mysql_priv.h:
Make chooser_compare_func_creator visible in item.h
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for class Item_func_trim.
For 4.1 it caused wrong output for EXPLAIN EXTENDED commands
if expressions with the TRIM function of two arguments were used.
For 5.0 it caused an error message when trying to select
from a view with the TRIM function of two arguments.
This unexpected error message was due to the fact that the
print method for the class Item_func_trim was inherited from
the class Item_func. Yet the TRIM function does not take a list
of its arguments. Rather it takes the arguments in the form:
[{BOTH | LEADING | TRAILING} [remstr] FROM] str) |
[remstr FROM] str
mysql-test/r/func_str.result:
Added a test case for bug #17526: uncorrect print method
for class Item_func_trim.
mysql-test/t/func_str.test:
Added a test case for bug #17526: incorrect print method
for class Item_func_trim.
sql/item_strfunc.cc:
Fixed bug #17526: incorrect print method
for class Item_func_trim.
Added an implementation for the virtual function print
in the class Item_func_trim.
The implementation takes into account the fact the TRIM
function takes the arguments in the following forms:
[{BOTH | LEADING | TRAILING} [remstr] FROM] str) |
[remstr FROM] str
sql/item_strfunc.h:
Fixed bug #17526: incorrect print method
for class Item_func_trim.
Added an implementation for the virtual function print
in the class Item_func_trim.
Declared a virtual method to return the mode of the TRIM
function: LEADING, TRAILING or BOTH.
Added implementations of this method for Item_func_trim and
its descendants Item_func_ltrim and Item_func_rtrim.
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Too many cursors (more than 1024) could lead to memory corruption.
This affects both, stored routines and C API cursors, and the
threshold is per-server, not per-connection. Similarly, the
corruption could happen when the server was under heavy load
(executing more than 1024 simultaneous complex queries), and this is
the reason why this bug is fixed in 4.1, which doesn't support
cursors.
The corruption was caused by a bug in the temporary tables code, when
an attempt to create a table could lead to a write beyond allocated
space. Note, that only internal tables were affected (the tables
created internally by the server to resolve the query), not tables
created with CREATE TEMPORARY TABLE. Another pre-condition for the
bug is TRUE value of --temp-pool startup option, which, however, is a
default.
The cause of a bug was that random memory was overwritten in
bitmap_set_next() due to out-of-bound memory access.
mysys/my_bitmap.c:
Local 'bitmap_size' is measured in bytes, no need to multiply it by 8.
sql/sql_select.cc:
Clear the temp_pool_slot bit only if we have set it previously.
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into trift2.:/M41/push-4.1
sql/field.cc:
Auto merged
sql/sql_locale.cc:
Changes were already present (and even better) == Null-merge == "ul".
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- backport patch from 5.0
- "table" can be NULL in temporary fields used for type conversion
sql/field.cc:
table can be NULL in temporary fields used for type conversion.
Store value in field as if db_low_byte_first was set.
sql/field.h:
table can be NULL in temporary fields used for type conversion.
Store value in field as if db_low_byte_first was set.
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1) When initializing a boolean variable, do not use string representations '"false"' and '"true"'
but rather the boolean values 'false' and 'true'.
2) Add the module to the various Windows description files.
VC++Files/libmysqld/libmysqld.dsp:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/libmysqld/libmysqld.vcproj:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/libmysqld/libmysqld_ia64.dsp:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/mysqldemb/mysqldemb.dsp:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/mysqldemb/mysqldemb.vcproj:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/mysqldemb/mysqldemb_ia64.dsp:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/sql/mysqld.dsp:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/sql/mysqld.vcproj:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/sql/mysqld_ia64.dsp:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/sql/mysqldmax.dsp:
Add "sql/sql_locale.cpp" with similar settings as the other files.
VC++Files/sql/mysqldmax_ia64.dsp:
Add "sql/sql_locale.cpp" with similar settings as the other files.
sql/sql_locale.cc:
When initializing a boolean variable, do not use stringrepresentations '"false"' and '"true"'
but rather the boolean values 'false' and 'true'.
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into mysql.com:/usr/home/ram/work/4.1.b16327
sql/field.cc:
Auto merged
mysql-test/r/func_time.result:
merging
mysql-test/t/func_time.test:
merging
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mysql-test/r/func_time.result:
Fix for #16327: invalid TIMESTAMP values retrieved
- test result
mysql-test/t/func_time.test:
Fix for #16327: invalid TIMESTAMP values retrieved
- test case
sql/field.cc:
Fix for #16327: invalid TIMESTAMP values retrieved
- let 1969 as well
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into moonbone.local:/work/tmp_merge-4.1-opt-mysql
mysql-test/r/date_formats.result:
Auto merged
mysql-test/t/date_formats.test:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/sql_class.cc:
Auto merged
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into moonbone.local:/work/tmp_merge-4.1-opt-mysql
mysql-test/r/date_formats.result:
Auto merged
mysql-test/t/date_formats.test:
Auto merged
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into rakia.(none):/home/kgeorge/mysql/autopush/B17212-4.1-opt
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* don't use join cache when the incoming data set is already ordered
for ORDER BY
This choice must be made because join cache will effectively
reverse the join order and the results will be sorted by the index
of the table that uses join cache.
mysql-test/r/innodb_mysql.result:
Bug #17212 results not sorted correctly by ORDER BY when using index
* Test suite for the bug
mysql-test/t/innodb_mysql.test:
Bug #17212 results not sorted correctly by ORDER BY when using index
* Test suite for the bug
sql/sql_select.cc:
Bug #17212 results not sorted correctly by ORDER BY when using index
* don't use join cache when the incoming data set is already sorted
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into moonbone.local:/work/16302-bug-4.1-opt-mysql
mysql-test/r/subselect.result:
SCCS merged
mysql-test/t/subselect.test:
SCCS merged
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into moonbone.local:/work/18503-bug-4.1-mysql
sql/sql_select.cc:
Auto merged
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may return a wrong result.
An Item_sum_hybrid object has the was_values flag which indicates whether any
values were added to the sum function. By default it is set to true and reset
to false on any no_rows_in_result() call. This method is called only in
return_zero_rows() function. An ALL/ANY subquery can be optimized by MIN/MAX
optimization. The was_values flag is used to indicate whether the subquery
has returned at least one row. This bug occurs because return_zero_rows() is
called only when we know that the select will return zero rows before
starting any scans but often such information is not known.
In the reported case the return_zero_rows() function is not called and
the was_values flag is not reset to false and yet the subquery return no rows
Item_func_not_all and Item_func_nop_all functions return a wrong
comparison result.
The end_send_group() function now calls no_rows_in_result() for each item
in the fields_list if there is no rows were found for the (sub)query.
mysql-test/t/subselect.test:
Added test case for bug#18503: Queries with a quantified subquery returning empty set may return a wrong result.
mysql-test/r/subselect.result:
Added test case for bug#18503: Queries with a quantified subquery returning empty set may return a wrong result.
sql/sql_select.cc:
Fixed bug#18503: Queries with a quantified subquery returning empty set may return a wrong result.
The end_send_group() function now calls no_rows_in_result() for each item
in the fields_list if there is no matching rows were found.
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into moonbone.local:/work/16302-bug-4.1-opt-mysql
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into moonbone.local:/work/allany-4.1-mysql
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The ALL/ANY subqueries are the subject of MIN/MAX optimization. The matter
of this optimization is to embed MIN() or MAX() function into the subquery
in order to get only one row by which we can tell whether the expression
with ALL/ANY subquery is true or false.
But when it is applied to a subquery like 'select a_constant' the reported bug
occurs. As no tables are specified in the subquery the do_select() function
isn't called for the optimized subquery and thus no values have been added
to a MIN()/MAX() function and it returns NULL instead of a_constant.
This leads to a wrong query result.
For the subquery like 'select a_constant' there is no reason to apply
MIN/MAX optimization because the subquery anyway will return at most one row.
Thus the Item_maxmin_subselect class is more appropriate for handling such
subqueries.
The Item_in_subselect::single_value_transformer() function now checks
whether tables are specified for the subquery. If no then this subselect is
handled like a UNION using an Item_maxmin_subselect object.
mysql-test/t/subselect.test:
Added test case for bug#16302: Quantified subquery without any tables gives wrong results
mysql-test/r/subselect.result:
Added test case for bug#16302: Quantified subquery without any tables gives wrong results
sql/item_subselect.cc:
Fixed bug#16302: Quantified subquery without any tables gives wrong results
The Item_in_subselect::single_value_transformer() function now checks
whether tables are specified for the subquery. If no then this subselect is
handled like a UNION using an Item_maxmin_subselect object.
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into moonbone.local:/home/evgen/bk-trees/mysql-4.1-opt
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
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into macbook.gmz:/Users/kgeorge/mysql/work/B14553-4.1-opt
sql/sql_class.cc:
SCCS merged
sql/sql_select.cc:
SCCS merged
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To make MySQL compatible with some ODBC applications, you can find
the AUTO_INCREMENT value for the last inserted row with the following query:
SELECT * FROM tbl_name WHERE auto_col IS NULL.
This is done with a special code that replaces 'auto_col IS NULL' with
'auto_col = LAST_INSERT_ID'.
However this also resets the LAST_INSERT_ID to 0 as it uses it for a flag
so as to ensure that only the first SELECT ... WHERE auto_col IS NULL
after an INSERT has this special behaviour.
In order to avoid resetting the LAST_INSERT_ID a special flag is introduced
in the THD class. This flag is used to restrict the second and subsequent
SELECTs instead of LAST_INSERT_ID.
mysql-test/r/odbc.result:
test suite for the bug
mysql-test/r/rpl_insert_id.result:
test for the fix in replication
mysql-test/t/odbc.test:
test suite for the bug
mysql-test/t/rpl_insert_id.test:
test for the fix in replication
sql/sql_class.cc:
initialize the flag
sql/sql_class.h:
flag's declaration and set code when setting the last_insert_id
sql/sql_select.cc:
the special flag is used instead of last_insert_id
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into olga.mysql.com:/home/igor/mysql-4.1-opt
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The implementation of the method Item_func_reverse::val_str
for the REVERSE function modified the argument of the function.
This led to wrong results for expressions that contained
REVERSE(ref) if ref occurred somewhere else in the expressions.
mysql-test/r/func_str.result:
Added a test case for bug #18243.
mysql-test/t/func_str.test:
Added a test case for bug #18243.
sql/item_strfunc.cc:
Fixed bug #18243.
The implementation of the method Item_func_reverse::val_str
for the REVERSE function modified the argument of the function.
This led to wrong results for expressions that contained
REVERSE(ref) if ref occurred somewhere else in the expressions.
The implementation of Item_func_reverse::val_str has been changed
to make the argument intact.
sql/item_strfunc.h:
Fixed bug #18243.
Added tmp_value to the Item_func_reverse class to store
the result of the function. It erroneously replaced the
argument before this fix.
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Please use "ul" when merging this changeset to 5.0.
sql/item_timefunc.cc:
Fix a valgrind warning in type_date test.
sql/sql_locale.cc:
Fix a Windows build failure: "false" -> FALSE
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into mysql.com:/usr/home/ram/work/4.1.b15195
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to avoid the potential security problem.
(see bug #15195: Security Breach with MERGE table)
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into mysql.com:/home/hf/work/mysql-4.1.16017
include/sql_common.h:
Auto merged
libmysql/libmysql.c:
Auto merged
libmysqld/lib_sql.cc:
Auto merged
sql-common/client.c:
Auto merged
sql/sql_parse.cc:
Auto merged
libmysqld/libmysqld.c:
merging
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There actually was 3 different problems -
hash_user_connections wasn't cleaned
one strdupped database name wasn't freed
and stmt->mem_root wasn't cleaned as it was
replased with mysql->field_alloc for result
For the last one - i made the library using stmt's
fields to store result if it's the case.
include/mysql.h:
statement pointer added to the advanced_command to be checked in
embedded server
include/sql_common.h:
stmt added to the cli_advanced_command interface
libmysql/libmysql.c:
stmt pointer now sent to advanced_command
libmysqld/embedded_priv.h:
it's enough to send database name to check_embedded_connection
libmysqld/lib_sql.cc:
Now we store result directly in the MYSQL_STMT structure to
avoid extra copying
libmysqld/libmysqld.c:
it's enough to only send database pointer to check_embedded_connection
sql-common/client.c:
stmt fake attribute added to cli_advanced_command
sql/sql_parse.cc:
hash_user_connections isn't used if no access checks compiled
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into dl145k.mysql.com:/data0/mkindahl/bk/mysql-4.1-rpl
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closing temp tables through end_thread
had a flaw in binlog-off branch of close_temporary_tables where
next table to close was reset via table->next
for (table= thd->temporary_tables; table; table= table->next)
which was wrong since the current table instance got destoyed at
close_temporary(table, 1);
The fix adapts binlog-on branch method to engage the loop's internal 'next' variable which holds table->next prior table's destoying.
sql/sql_base.cc:
no-binlog branch is fixed: scanning across temporary_tables must be careful to save next table since the current is being destroyed inside of close_temporary.
binlog-is-open case is ok.
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into maint1.mysql.com:/data/localhome/cmiller/mysql-4.1
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into zippy.(none):/home/cmiller/work/mysql/m41-maint--07AB5
mysql-test/r/date_formats.result:
Auto merged
mysql-test/t/date_formats.test:
Auto merged
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The problem is that the author used the wrong function to send a warning to the
user about truncation of data. push_warning() takes a constant string and
push_warning_printf() takes a format and variable arguments to fill it.
Since the string we were complaining about contains percent characters, the
printf() code interprets the "%Y" et c. that the user sends. That's wrong, and
often causes a crash, especially if the date mentions seconds, "%s".
A alternate fix would be to use push_warning_printf(..., "%s", warn_buff) .
mysql-test/r/date_formats.result:
Test that an invalid date doesn't crash the server. We should get a warning back
instead of a dead socket.
mysql-test/t/date_formats.test:
Test that an invalid date doesn't crash the server. We should get a warning back
instead of a dead socket.
sql/time.cc:
Don't try to use warn_buf as the start of a varible arguement list to send
to a warning-formatted my_vsnprintf() .
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into zippy.(none):/home/cmiller/work/mysql/merge/mysql-4.1
client/sql_string.h:
Auto merged
sql/item_func.h:
Auto merged
sql/sql_string.h:
Auto merged
configure.in:
Null merge.
sql/item_strfunc.cc:
Null merged
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On exactly-sized Strings, the String::c_ptr() function peeked beyond the
end of the buffer, possibly into unititialized space to see whether the
buffer was NUL-terminated.
In a place that did peek improperly, we now use a c_ptr_safe() function,
which doesn't peek where it shouldn't.
client/sql_string.h:
Back-port String::c_ptr_safe().
sql/item_func.h:
Describe side-effect behavior.
sql/item_strfunc.cc:
Use the "_safe" version of c_ptr to avoid looking for a terminating
NUL character outside the initialized memory area. Valgrind hates it
when one does that, and it theoretically could lead to a SEGV.
sql/sql_string.h:
Back-port String::c_ptr_safe().
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mysql-test/r/func_str.result:
Fix for bug #12728: Very strange behaviour of ELT
- test case
mysql-test/t/func_str.test:
Fix for bug #12728: Very strange behaviour of ELT
- test result
sql/item_strfunc.cc:
Fix for bug #12728: Very strange behaviour of ELT
- Item_func_elt::eq() introduced: check 'item' member as well
(to distinguish for instance elt(1, 'a', 'b') and elt(2, 'a', 'b')
sql/item_strfunc.h:
Fix for bug #12728: Very strange behaviour of ELT
- Item_func_elt::eq() introduced: check 'item' member as well
(to distinguish for instance elt(1, 'a', 'b') and elt(2, 'a', 'b')
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into chilla.local:/home/mydev/mysql-4.1-amerge
sql/sql_class.cc:
Auto merged
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