Fix compiler warning:
btr/btr0cur.c: In function 'btr_cur_optimistic_update':
btr/btr0cur.c:1839:10: error: variable 'orig_rec' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
btr/btr0btr.c: In function 'btr_compress':
btr/btr0btr.c:2564:9: error: variable 'level' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
btr/btr0btr.c: In function 'btr_page_split_and_insert':
btr/btr0btr.c:1898:11: error: variable 'insert_page' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
./include/ut0rnd.ic: In function 'ut_rnd_gen_ulint':
./include/ut0rnd.ic:88:8: error: variable 'n_bits' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
handler/ha_innodb.cc: In function 'bool innodb_show_status(handlerton*, THD*, bool (*)(THD*, const char*, uint, const char*, uint, const char*, uint))':
handler/ha_innodb.cc:7539:7: error: variable 'result' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
handler/ha_innodb.cc: In function 'void innobase_drop_database(handlerton*, char*)':
handler/ha_innodb.cc:5969:6: error: variable 'error' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
trx/trx0undo.c: In function 'trx_undo_set_state_at_prepare':
trx/trx0undo.c:1798:16: error: variable 'page_hdr' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
trx/trx0undo.c: In function 'trx_undo_truncate_end':
trx/trx0undo.c:1015:14: error: variable 'rseg' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
trx/trx0trx.c: In function 'trx_prepare_off_kernel':
trx/trx0trx.c:1830:11: error: variable 'update_hdr_page' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
trx/trx0sys.c: In function 'trx_sys_create_doublewrite_buf':
trx/trx0sys.c:168:10: error: variable 'new_page' set but not used [-Werror=unused-but-set-variable]
Fix compiler warnings:
trx/trx0roll.c: In function 'trx_undo_arr_remove_info':
trx/trx0roll.c:717:9: error: variable 'n' set but not used [-Werror=unused-but-set-variable]
trx/trx0roll.c:716:9: error: variable 'n_used' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
trx/trx0purge.c: In function 'trx_purge_rec_release':
trx/trx0purge.c:1007:18: error: variable 'arr' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
trx/trx0purge.c: In function 'trx_purge_rseg_get_next_history_log':
trx/trx0purge.c:599:15: error: variable 'seg_hdr' set but not used [-Werror=unused-but-set-variable]
Bug #55546 mysqltest fails to create a new thread on HPUX
Missing call to pthread_join(), in embedded mode
This independently solves both problems, see 55426 for details.
Addendum: cannot test against a pthread_t, adds boolean flag instead
Fix compiler warning:
trx/trx0purge.c: In function 'trx_purge_add_update_undo_to_history':
trx/trx0purge.c:254:16: error: variable 'page_header' set but not used [-Werror=unused-but-set-variable]
trx/trx0purge.c:252:15: error: variable 'seg_header' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
row/row0vers.c: In function 'row_vers_impl_x_locked_off_kernel':
row/row0vers.c:62:9: error: variable 'err' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
row/row0upd.c: In function 'row_upd_in_place_in_select':
row/row0upd.c:2040:9: error: variable 'err' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
row/row0umod.c: In function 'row_undo_mod_clust_low':
row/row0umod.c:92:9: error: variable 'success' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
row/row0purge.c: In function 'row_purge_step':
row/row0purge.c:660:9: error: variable 'err' set but not used [-Werror=unused-but-set-variable]
(row_purge() always returns DB_SUCCESS)
Fix compiler warning:
que/que0que.c: In function 'que_thr_dec_refer_count':
que/que0que.c:805:11: error: variable 'sess' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
que/que0que.c: In function 'que_run_threads_low':
que/que0que.c:1295:9: error: variable 'cumul_resource' set but not used [-Werror=unused-but-set-variable]
Fix compiler warnings:
os/os0file.c: In function 'os_file_create':
os/os0file.c:1318:14: error: variable 'purpose_str' set but not used [-Werror=unused-but-set-variable]
os/os0file.c:1317:14: error: variable 'type_str' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
log/log0recv.c: In function 'recv_synchronize_groups':
log/log0recv.c:403:10: error: variable 'limit_lsn' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
log/log0recv.c: In function 'recv_recovery_from_checkpoint_start':
log/log0recv.c:2509:10: error: variable 'archived_lsn' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
lock/lock0lock.c: In function 'lock_print_info_all_transactions':
lock/lock0lock.c:4299:10: error: variable 'page' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
eval/eval0eval.c: In function 'eval_notfound':
eval/eval0eval.c:371:14: error: variable 'arg2' set but not used [-Werror=unused-but-set-variable]
Fix compiler warning:
buf/buf0flu.c: In function 'buf_flush_batch':
buf/buf0flu.c:844:9: error: variable 'old_page_count' set but not used [-Werror=unused-but-set-variable]
Fix compiler warnings:
btr/btr0sea.c: In function 'btr_search_update_hash_on_delete':
btr/btr0sea.c:1404:9: error: variable 'found' set but not used [-Werror=unused-but-set-variable]
Fix compiler warnings:
btr/btr0pcur.c: In function 'btr_pcur_move_backward_from_page':
btr/btr0pcur.c:432:8: error: variable 'space' set but not used [-Werror=unused-but-set-variable]
Fix compiler warnings:
btr/btr0cur.c: In function 'btr_store_big_rec_extern_fields':
btr/btr0cur.c:3368:10: error: variable 'rec_page' set but not used [-Werror=unused-but-set-variable]
btr/btr0cur.c: In function 'btr_free_externally_stored_field':
btr/btr0cur.c:3542:8: error: variable 'offset' set but not used [-Werror=unused-but-set-variable]
btr/btr0cur.c:3539:10: error: variable 'rec_page' set but not used [-Werror=unused-but-set-variable]
ORDER BY computed col
GROUP BY implies ORDER BY in the MySQL dialect of SQL. Therefore, when an
index on the first table in the query is used, and that index satisfies
ordering according to the GROUP BY clause, the query optimizer estimates the
number of tuples that need to be read from this index. If there is a LIMIT
clause, table statistics on tables following this 'sort table' are employed.
There may be a separate ORDER BY clause however, which mandates reading the
whole 'sort table' anyway. But the previous estimate was left untouched.
Fixed by removing the estimate from EXPLAIN output if GROUP BY is used in
conjunction with an ORDER BY clause that mandates using a temporary table.
Version "5.1.42 SUSE MySQL RPM"
When a query was using a DATE or DATETIME value formatted
using different formatting than "yyyy-mm-dd HH:MM:SS", a
query with a greater-or-equal '>=' condition matched only
greater values in an indexed TIMESTAMP column.
The problem was introduced by the fix for the bug 46362
and partially solved (for DATE and DATETIME columns only)
by the fix for the bug 47925.
The stored_field_cmp_to_item function has been modified
to take into account TIMESTAMP columns like we do for
DATE and DATETIME columns.
mysql-test/r/type_timestamp.result:
Test case for bug #55779.
mysql-test/t/type_timestamp.test:
Test case for bug #55779.
sql/item.cc:
Bug #55779: select does not work properly in mysql server
Version "5.1.42 SUSE MySQL RPM"
The stored_field_cmp_to_item function has been modified
to take into account TIMESTAMP columns like we do for
DATE and DATETIME.
The patch caused some test failures when merged to 5.5 because,
unlike 5.1, it utilizes Item_cache_row to actually cache row
values. The problem was that Item_cache_row::bring_value()
essentially did nothing. In particular, it did not update its
null_value, so all Item_cache_row objects were always having
their null_values set to TRUE. This went unnoticed previously,
but now when Arg_comparator::compare_row() actually depends on
the row's null_value to evaluate the comparison, the problem
has surfaced.
Fixed by calling the underlying item's bring_value() and
updating null_value in Item_cache_row::bring_value().
Since the problem also exists in 5.1 code (albeit hidden, since
the relevant code is not used anywhere), the addendum patch is
against 5.1.
result
Row subqueries producing no rows were not handled as UNKNOWN
values in row comparison expressions.
That was a result of the following two problems:
1. Item_singlerow_subselect did not mark the resulting row
value as NULL/UNKNOWN when no rows were produced.
2. Arg_comparator::compare_row() did not take into account that
a whole argument may be NULL rather than just individual scalar
values.
Before bug#34384 was fixed, the above problems were hidden
because an uninitialized (i.e. without any stored value) cached
object would appear as NULL for scalar values in a row subquery
returning an empty result. After the fix
Arg_comparator::compare_row() would try to evaluate
uninitialized cached objects.
Fixed by removing the aforementioned problems.
mysql-test/r/row.result:
Added a test case for bug #54190.
mysql-test/r/subselect.result:
Updated the result for a test relying on wrong behavior.
mysql-test/t/row.test:
Added a test case for bug #54190.
sql/item_cmpfunc.cc:
If either of the argument rows is NULL, return NULL as the
result of comparison.
sql/item_subselect.cc:
Adjust null_value for Item_singlerow_subselect depending on
whether a row has been produced by the row subquery.
Item_func_spatial_collection::fix_length_and_dec()
changed to use argument's print() method to print
the ER_ILLEGAL_VALUE_FOR_TYPE error.
mysql-test/r/gis.result:
Fix for bug#56679: gis.test: valgrind error
- test result adjusted.
sql/item_geofunc.h:
Fix for bug#56679: gis.test: valgrind error
- use argument's print() method instead of improper val_str()
call in the Item_func_spatial_collection::fix_length_and_dec(), as
it's applicable only for constant items.
