This performance degradation was due to the fact that some
cost evaluation code added into 4.1 in the function find_best was
not merged into the code of the function best_access_path added
together with other code for greedy optimizer.
Added a parameter to the function print_plan. The parameter contains
accumulated cost for a given partial join.
The patch does not include a special test case since this performance
degradation is hard to reproduse with a simple example.
TODO: make the function find_best use the function best_access_path
in order to remove duplication of code which might result in incomplete
merges in the future.
mysql-test/r/delete.result:
Fixed bug #14292: performance degradation for a benchmark query.
Adjusted test results.
mysql-test/r/subselect.result:
Fixed bug #14292: performance degradation for a benchmark query.
Adjusted test results.
sql/mysql_priv.h:
Fixed bug #14292: performance degradation for a benchmark query.
Added a parameter to the function print_plan. The parameter contains
accumulated cost for a given partial join.
sql/sql_select.cc:
Fixed bug #14292: performance degradation for a benchmark query.
This performance degradation was due to the fact that some
cost evaluation code added into 4.1 in the function find_best was
not merged into the code of the function best_access_path added
together with other code for greedy optimizer.
sql/sql_test.cc:
Fixed bug #14292: performance degradation for a benchmark query.
Added a parameter to the function print_plan. The parameter contains
accumulated cost for a given partial join.
mysql-test/r/func_time.result:
Fix for bug #16546: DATETIME+0 not always coerced the same way
- test case
mysql-test/t/func_time.test:
Fix for bug #16546: DATETIME+0 not always coerced the same way
- test case
sql/item_timefunc.cc:
Fix for bug #16546: DATETIME+0 not always coerced the same way
- set decimals to DATETIME_DEC
sql/item_timefunc.h:
Fix for bug #16546: DATETIME+0 not always coerced the same way
- set decimals to DATETIME_DEC
Bug#17667: An attacker has the opportunity to bypass query logging.
This adds a new, local-only printf format specifier to our *printf functions
that allows us to print known-size buffers that must not be interpreted as
NUL-terminated "strings."
It uses this format-specifier to print to the log, thus fixing this
problem.
include/my_sys.h:
Add prototype for my_memmem() .
mysys/Makefile.am:
Add reference to new file, my_memmem.c
mysys/mf_iocache2.c:
Add a "%.1234b" and "%.*b" percent-code. It takes a width, just like "%s",
but unlike the string-indicator, it requires the width and doesn't stop printing
at NUL characters.
Also, simplify the code a bit.
TODO: This code should be unified with the strings/my_vnsprintf.c code in
the future.
sql/sql_parse.cc:
The query is not a C-string, but is a sized buffer, containing any character
at all, which may include NUL characters.
strings/my_vsnprintf.c:
Add a "%.1234b" and "%.*b" percent-code. It takes a width, just like "%s",
but unlike the string-indicator, it requires the width and doesn't stop printing
at NUL characters.
tests/Makefile.am:
We may need some of our local functions.
tests/mysql_client_test.c:
Add a "%.1234b" and "%.*b" percent-code. It takes a width, just like "%s",
but unlike the string-indicator, it requires the width and doesn't stop printing
at NUL characters.
mysql-test/t/mysql_client_test.opt:
New BitKeeper file ``mysql-test/t/mysql_client_test.opt''
Add '--log' server parameter.
mysys/my_memmem.c:
New BitKeeper file ``mysys/my_memmem.c''
Implement memmem, a black-box work-alike of the GNU memmem(), which functions
like strstr() but for arbitrary blocks of memory.
into zippy.(none):/home/cmiller/work/mysql/merge/mysql-5.0
mysql-test/r/null.result:
Auto merged
mysql-test/t/null.test:
Auto merged
sql/sql_table.cc:
Merge.
Now test for NULLness the pointers returned from objects created from the
default value. Pushing patch on behalf of cmiller.
mysql-test/r/null.result:
Add test case
mysql-test/t/null.test:
Add test case
sql/sql_table.cc:
No longer blindly dereference pointer of the string representation of the
values, where "NULL" is NUL. Raise INVALID DEFAULT error messages where
appropriate.
Note that the -O1 optimization flag made debugging this extremely tricky, with
misleading results, and that removing it from the Makefile during debugging can
be invaluable.
Add more DBUG_PRINT's in udf_handler::val_str
Enable udf.test
mysql-test/t/disabled.def:
Enable udf.test
sql/item_func.cc:
Add DBUG_ printouts for easier debugging of installed udf's
sql/udf_example.cc:
Bug fix, break for loop when "n < n_end"
In the code that converts IN predicates to EXISTS predicates it is changing
the select list elements to constant 1. Example :
SELECT ... FROM ... WHERE a IN (SELECT c FROM ...)
is transformed to :
SELECT ... FROM ... WHERE EXISTS (SELECT 1 FROM ... HAVING a = c)
However there can be no FROM clause in the IN subquery and it may not be
a simple select : SELECT ... FROM ... WHERE a IN (SELECT f(..) AS
c UNION SELECT ...) This query is transformed to : SELECT ... FROM ...
WHERE EXISTS (SELECT 1 FROM (SELECT f(..) AS c UNION SELECT ...)
x HAVING a = c) In the above query c in the HAVING clause is made to be
an Item_null_helper (a subclass of Item_ref) pointing to the real
Item_field (which is not referenced anywhere else in the query anymore).
This is done because Item_ref_null_helper collects information whether
there are NULL values in the result. This is OK for directly executed
statements, because the Item_field pointed by the Item_null_helper is
already fixed when the transformation is done. But when executed as
a prepared statement all the Item instances are "un-fixed" before the
recompilation of the prepared statement. So when the Item_null_helper
gets fixed it discovers that the Item_field it points to is not fixed
and issues an error. The remedy is to keep the original select list
references when there are no tables in the FROM clause. So the above
becomes : SELECT ... FROM ... WHERE EXISTS (SELECT c FROM (SELECT f(..)
AS c UNION SELECT ...) x HAVING a = c) In this way c is referenced
directly in the select list as well as by reference in the HAVING
clause. So it gets correctly fixed even with prepared statements. And
since the Item_null_helper subclass of Item_ref_null_helper is not used
anywhere else it's taken out.
mysql-test/r/ps_11bugs.result:
Test case for the bug
mysql-test/r/subselect.result:
Explain updated because of the tranformation
mysql-test/t/ps_11bugs.test:
Testcase for the bug
sql/item.cc:
Taking out Item_null_helper as it's no longer needed
sql/item.h:
Taking out Item_null_helper as it's no longer needed
sql/item_subselect.cc:
The described change to the IN->EXISTS transformation
into neptunus.(none):/home/msvensson/mysql/mysql-5.0
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/trigger.result:
Auto merged
mysql-test/t/trigger.test:
Auto merged
sql/sql_parse.cc:
Auto merged
Set LD_LIBRARY_PATH and UDF_EXAMPLE_LIB from $lib_udf_example
mysql-test/lib/mtr_misc.pl:
Return empty string if file does not exist
mysql-test/mysql-test-run.pl:
Set LD_LIBRARY_PATH and UDF_EXAMPLE_LIB from $lib_udf_example variable
Supplying --skip-rpl to mysql-test-run.pl would always disable the
slaves, but those slaves may still be needed for the federated tests.
Now we only disable the slaves when they are not used by any of the
tests.
mysql-test/mysql-test-run.pl:
Decide whether to set up and start slave databases based entirely on
which tests are used, and don't allow --skip-rpl to ruin the party,
since other tests than replication rely on the slaves (namely federated).
into shellback.(none):/home/msvensson/mysql/mysql-5.0-maint
client/mysql.cc:
Auto merged
configure.in:
Auto merged
extra/yassl/include/openssl/rsa.h:
Auto merged
extra/yassl/include/yassl_int.hpp:
Auto merged
extra/yassl/include/yassl_types.hpp:
Auto merged
extra/yassl/src/template_instnt.cpp:
Auto merged
extra/yassl/taocrypt/include/integer.hpp:
Auto merged
extra/yassl/taocrypt/include/misc.hpp:
Auto merged
extra/yassl/taocrypt/src/algebra.cpp:
Auto merged
extra/yassl/taocrypt/src/template_instnt.cpp:
Auto merged
mysql-test/t/disabled.def:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
extra/yassl/include/openssl/ssl.h:
Manual merge
extra/yassl/src/handshake.cpp:
Manual merge
extra/yassl/src/yassl_int.cpp:
Manual merge
extra/yassl/taocrypt/include/runtime.hpp:
Manual merge
extra/yassl/taocrypt/src/integer.cpp:
Manual merge
mysql-test/mysql-test-run.pl:
Manual merge
mysql-test/r/trigger.result:
Manual merge
mysql-test/t/trigger.test:
Manual merge
into neptunus.(none):/home/msvensson/mysql/mysql-5.0
mysql-test/mysql-test-run.pl:
Auto merged
sql/sql_parse.cc:
Auto merged
mysql-test/r/trigger.result:
Manual merge
mysql-test/t/trigger.test:
Manual merge
Then check in have_udf if that variable is set. Finally use tahe variable when loading the shared library.
mysql-test/include/have_udf.inc:
Add check if udf_example.so(or similar) is available
mysql-test/lib/mtr_misc.pl:
Add funcion "mtr_file_exist" to search for files
mysql-test/mysql-test-run.pl:
Add checks to find the udf_example.so library
mysql-test/r/udf.result:
Update result
mysql-test/t/disabled.def:
Remove udf.test from disabled tests
mysql-test/t/udf.test:
Use variable UDF_EXAMPLE_LIB when looking for shared library to load
mysql-test/r/have_udf_example.require:
New BitKeeper file ``mysql-test/r/have_udf_example.require''
BUG#14765: Modified test file.
sql_mode.result:
BUG#14765: Modified result file.
mysql-test/r/sql_mode.result:
BUG#14765: Modified result file.
mysql-test/t/sql_mode.test:
BUG#14765: Modified test file.
into mysql.com:/home/jimw/my/mysql-5.0-clean
sql/item_func.cc:
Auto merged
sql/set_var.cc:
Auto merged
mysql-test/r/variables.result:
Resolve conflict
mysql-test/t/variables.test:
Resolve conflict
This patch simply adds sql_big_selects to the list of variables
output by SHOW VARIABLES.
mysql-test/r/variables.result:
Update results
mysql-test/t/variables.test:
Add new regression test (and make end-of-tests marker add output)
sql/set_var.cc:
Add sql_big_selects to SHOW VARIABLES output
Use files innodb_mysql.[test|result] instead.
mysql-test/t/innodb.test:
This file is to be used by Innobase only.
mysql-test/r/innodb_mysql.result:
New BitKeeper file ``mysql-test/r/innodb_mysql.result''
Use this file instead of innodb.result.
mysql-test/t/innodb_mysql.test:
New BitKeeper file ``mysql-test/t/innodb_mysql.test''
Use this file instead of innodb.test.
too much memory. Instead, either create the equvalent SEL_TREE manually, or create only two ranges that
strictly include the area to scan
(Note: just to re-iterate: increasing NOT_IN_IGNORE_THRESHOLD will make optimization run slower for big
IN-lists, but the server will not run out of memory. O(N^2) memory use has been eliminated)
mysql-test/r/func_in.result:
Testcase for BUG#15872
mysql-test/t/func_in.test:
Testcase for BUG#15872
sql/item.cc:
BUG#15872: Added Item_decimal::set_decimal_value()
sql/item.h:
UG#15872: Added Item_decimal::set_decimal_value()
sql/item_cmpfunc.h:
BUG#15872: Added in_vector::create_item(), in_vector::value_to_item() and their implementations in concrete
classes.
sql/opt_range.cc:
BUG#15872: Don't run the range analyzer on "t1.keypart NOT IN (const1, ..., )", as that
consumes too much memory. Instead, either
A) create the equivalent SEL_TREE manually, making use of the fact that item_not_in->array
has an ordered IN-list, or
B) create only two ranges: (-inf|NULL) < X < min_value_from_in_list, max_value_from_in_list < X
(Choose #B if the IN-list has > 10K elements)
mysql-test/r/func_time.result:
Fix for bug #18501: Server crashes with monthname().
- test case
mysql-test/t/func_time.test:
Fix for bug #18501: Server crashes with monthname().
- test case
sql/item_timefunc.cc:
Fix for bug #18501: Server crashes with monthname().
- check null_value as well.
supported in SP but not in PS": just enable them in prepared
statements, the supporting functionality was implemented when
they were enabled in stored procedures.
mysql-test/r/ps.result:
Bug#19308: test results fixed.
mysql-test/r/ps_1general.result:
Adjust existing test cases (ANALYZE/OPTIMIZE/REPAIR are now
allowed in prepared statements.
mysql-test/r/sp-dynamic.result:
Adjust existing test cases (ANALYZE/OPTIMIZE/REPAIR are now
allowed in prepared statements.
mysql-test/t/ps.test:
Add a test case for Bug#19308 "REPAIR/OPTIMIZE/ANALYZE supported
in SP but not in PS"
mysql-test/t/ps_1general.test:
Adjust existing test cases (ANALYZE/OPTIMIZE/REPAIR are now
allowed in prepared statements.
sql/sql_prepare.cc:
Enable ANALYZE, OPTIMIZE, REPAIR in prepared statements.
into mysql.com:/usr/local/mysql/mysql-5.0-mtr-fix
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/t/case.test:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
mysql-test/r/case.result:
SCCS merged
