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.
do not look for client-specific commands while inside a multi-line comment.
we will allow multi-comments pretty much anywhere within SQL-statements,
but client-specific commands (help, use, print, ...) must be the first token
in the input.
client/mysql.cc:
Bug#20432: mysql client interprets commands in comments
mysql-test/r/mysql_client.result:
Bug#20432: mysql client interprets commands in comments
test client-side parsing of comments and client-specific commands
mysql-test/t/mysql_client.test:
Bug#20432: mysql client interprets commands in comments
test client-side parsing of comments and client-specific commands
* 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
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.
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() .
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.
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
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.
(implemented by by Josh Chamas)
libmysqld/Makefile.am:
Adding new source file
mysql-test/r/date_formats.result:
Adding test case
mysql-test/t/date_formats.test:
Adding test case
sql/Makefile.am:
Adding new source file
BitKeeper/etc/ignore:
Added libmysqld/sql_locale.cc to the ignore list
sql/item_timefunc.cc:
Using current locale data, instead of hard coded English names.
sql/mysql_priv.h:
Adding new type MY_LOCALE, and declaring new global variables.
sql/set_var.cc:
Adding "lc_time_names" system variable.
sql/set_var.h:
Adding "lc_time_names" system variable.
sql/sql_cache.cc:
Adding lc_time_names as a query cache flag.
sql/sql_class.cc:
Setting default locale to en_US
sql/sql_class.h:
Adding locale variable into system_variables.
sql/sql_locale.cc:
Adding new file with locale data for various languages
mysql-test/r/key.result:
Fixed result after removing wrong bug fix
mysql-test/t/key.test:
Added SHOW CREATE TABLE, which is the proper way to check for table definitions
sql/table.cc:
Reverted wrong bug fix.
The intention with the original code was to show that MySQL treats the first
given unique key as a primary key. Clients can use the marked primary key as a
real primary key to validate row changes in case of conflicting updates. The
ODBC driver (and other drivers) may also use this fact to optimize/check
updates and handle conflicts. The marked key also shows what some engines, like InnoDB or NDB,
will use as it's internal primary key.
For checking if someone has declared a true PRIMARY KEY, one should use 'SHOW CREATE TABLE'
When using a parameter bind MYSQL_TYPE_DATE in a prepared statement,
the time part of the MYSQL_TIME buffer was written to zero in
mysql_stmt_execute(). The param_store_date() function in libmysql.c
worked directly on the provided buffer.
Changed to use a copy of the buffer.
libmysql/libmysql.c:
fix for bug #20152
tests/mysql_client_test.c:
added test for bug#20152
- Added comments.
- Make SEL_ARG::clone() set SEL_ARG::elements in the created copy.
mysql-test/r/range.result:
BUG#16168: Testcase
mysql-test/t/range.test:
BUG#16168: Testcase
heap/hp_test1.c:
Changed type from last commit
mysql-test/mysql-test-run.sh:
Fixed problem with running with --gdb and two masters
Don't disable ndb becasue we run gdb
mysql-test/t/mysqldump.test:
Don't read ~/.my.cnf
sql/ha_ndbcluster.cc:
Portability fix
hp_test2 now works again
Fixed wrong cast, which caused problems with gcc 4.0 and floats in prepared statements (Bug #19694)
heap/hp_test1.c:
Portability fix
heap/hp_test2.c:
Added max_table_size (fixes that hp_test2 works again)
include/my_global.h:
Fixed wrong cast, which caused problems with gcc 4.0 (Bug #19694)
mysys/my_handler.c:
Added missing include file
strings/strtod.c:
Fixed include files
change default minimum to 3
bug is *very* timing dependent, unable to reproduce here, but theoretically possible.
ndb/src/mgmsrv/ConfigInfo.cpp:
change minimum NoOfFragmentLogFiles to 3
Produce a warning if DATA/INDEX DIRECTORY is specified in
ALTER TABLE statement.
Ignoring of these options is documented in the symbolic links
section of the manual.
mysql-test/r/symlink.result:
Modified test result according to fix for BUG#1662.
sql/sql_parse.cc:
Produce a warning if DATA/INDEX DIRECTORY is specified in
ALTER TABLE statement.
manual merge from 4.0.
support-files/mysql.spec.sh:
Manual merge of the fix for bug#20216.
(became necessary because 4.0 and 4.1 spec files use different file sort order).
