into mysql.com:/home/psergey/mysql-5.1-merge6
mysql-test/r/rpl_user_variables.result:
Auto merged
mysql-test/t/having.test:
Auto merged
mysql-test/t/rpl_user_variables.test:
Auto merged
sql/item_func.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_select.cc:
Auto merged
into mysql.com:/home/tomash/src/mysql_ab/mysql-5.1-merge
BitKeeper/deleted/.del-changelog-4.0.xml~8f56ee8a913e848b:
Auto merged
BitKeeper/deleted/.del-changelog-4.1.xml~8aa496ebed09d868:
Auto merged
mysql-test/r/func_misc.result:
Auto merged
sql/item_func.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_acl.h:
Auto merged
sql/sql_parse.cc:
Auto merged
into neptunus.(none):/home/msvensson/mysql/mysql-5.1
mysql-test/r/date_formats.result:
Auto merged
mysql-test/t/date_formats.test:
Auto merged
sql/item_timefunc.cc:
Auto merged
into neptunus.(none):/home/msvensson/mysql/mysql-5.1
BitKeeper/deleted/.del-changelog-5.0.xml~f4c50926ccdd7434:
Auto merged
mysql-test/r/ndb_condition_pushdown.result:
Auto merged
mysql-test/t/ndb_condition_pushdown.test:
Auto merged
storage/ndb/include/ndbapi/NdbOperation.hpp:
Auto merged
storage/ndb/include/util/NdbSqlUtil.hpp:
Auto merged
storage/ndb/src/common/util/NdbSqlUtil.cpp:
Auto merged
- Fix mysqld_safe so that it always passes correct --log-error argument to mysqld
- A few other minor clean-ups to mysqld_safe
scripts/mysqld_safe.sh:
Bug #6061 mysql-log-rotate script - error logging doesn't use new file
- Change mysqld_safe to pass --log-error to mysqld in all cases. The old behavior was to usually "swallow" the --log-error=file.name argument, which caused mysqld to write to stderr and not be able to flush the error log file. Ironically, passing --log-error (with no file name) seemed to work fine, because mysqld_safe didn't recognize it and passed it on to mysqld as an unknown option.
- Ensure that the error log file matches what mysqld uses; in particular, add ".err" if given a --log-error argument with no extension, and add "$DATADIR" to the front of a relative path
- Various other mysqld_safe clean-ups while there - quote arguments properly, remove some redundant code
unittest/examples/no_plan.t.c:
Ensure that the "configure" result is used when compiling this module.
unittest/examples/skip_all.t.c:
Ensure that the configure result is used when compiling this module.
unittest/examples/todo.t.c:
Ensure that the configure result is used when compiling this module.
unittest/mytap/t/basic.t.c:
Ensure that the configure result is used when compiling this module.
into neptunus.(none):/home/msvensson/mysql/mysql-5.1
mysql-test/r/auto_increment.result:
Auto merged
mysql-test/r/gis-rtree.result:
Auto merged
mysql-test/r/symlink.result:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_show.cc:
Auto merged
mysql-test/r/mysqldump.result:
Manual merge 5.0 -> 5-1
mysql-test/t/mysqldump.test:
Manual merge 5.0 -> 5-1
When converting DISTINCT to GROUP BY where the columns are from the covering
index and they are quoted twice in the SELECT list the optimizer is creating
improper processing sequence. This is because of the fact that the columns
of the covering index are not recognized as such and treated as non-index
columns.
Generally speaking duplicate columns can safely be removed from the GROUP
BY/DISTINCT list because this will not add or remove new rows in the
resulting set. Duplicates can be removed even if they are not consecutive
(as is the case for ORDER BY, where the duplicate columns can be removed
only if they are consecutive).
So we can safely transform "SELECT DISTINCT a,a FROM ... ORDER BY a" to
"SELECT a,a FROM ... GROUP BY a ORDER BY a" instead of
"SELECT a,a FROM .. GROUP BY a,a ORDER BY a". We can even transform
"SELECT DISTINCT a,b,a FROM ... ORDER BY a,b" to
"SELECT a,b,a FROM ... GROUP BY a,b ORDER BY a,b".
The fix to this bug consists of checking for duplicate columns in the SELECT
list when constructing the GROUP BY list in transforming DISTINCT to GROUP
BY and skipping the ones that are already in.
mysql-test/r/distinct.result:
test case for the bug without loose index scan
mysql-test/r/group_min_max.result:
test case for the bug
mysql-test/t/distinct.test:
test case for the bug without loose index scan
mysql-test/t/group_min_max.test:
test case for the bug
sql/sql_select.cc:
duplicates check and removal
