mariadb/sql/log_slow.h
Marko Mäkelä 6860a4b556 MDEV-12206 Query_cache::send_result_to_client() may corrupt THD::query_plan_flags
This is essentially a backport of the 10.0
commit 203f4d4193
that fixes a bug and silences a GCC 6.3.0 warning
about a left shift of a signed integer.

Missing parenthesis in a macro definition caused wrong operation
in the Query_cache::send_result_to_client() statement
   thd->query_plan_flags= (thd->query_plan_flags & ~QPLAN_QC_NO) | QPLAN_QC;

This would expand to
   thd->query_plan_flags= (thd->query_plan_flags & ~1) << 6 | 1 << 5;

which would shift the flags by 6 and clear an unrelated flag, instead
of clearing the flag (1 << 6).
2017-03-08 10:31:06 +02:00

34 lines
1.4 KiB
C

/* Copyright (C) 2009, 2017, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 or later of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Defining what to log to slow log */
#define LOG_SLOW_VERBOSITY_INIT 0
#define LOG_SLOW_VERBOSITY_INNODB (1U << 0)
#define LOG_SLOW_VERBOSITY_QUERY_PLAN (1U << 1)
#define QPLAN_INIT QPLAN_QC_NO
#define QPLAN_ADMIN (1U << 0)
#define QPLAN_FILESORT (1U << 1)
#define QPLAN_FILESORT_DISK (1U << 2)
#define QPLAN_FULL_JOIN (1U << 3)
#define QPLAN_FULL_SCAN (1U << 4)
#define QPLAN_QC (1U << 5)
#define QPLAN_QC_NO (1U << 6)
#define QPLAN_TMP_DISK (1U << 7)
#define QPLAN_TMP_TABLE (1U << 8)
/* ... */
#define QPLAN_MAX (1U << 31) /* reserved as placeholder */