Adding the function ps_is_instrument_default_enabled() which returns whether a given instrument is enabled by default for the MySQL version used.

Author: JesperWisborgKrogh

functions/ps_is_instrument_default_enabled.sql

@@ -0,0 +1,70 @@
+/* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+
+   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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
+
+DROP FUNCTION IF EXISTS ps_is_instrument_default_enabled;
+
+DELIMITER $$
+
+CREATE DEFINER='root'@'localhost' FUNCTION ps_is_instrument_default_enabled (
+        in_instrument VARCHAR(128)
+    ) 
+    RETURNS ENUM('YES', 'NO')
+    COMMENT '
+             Description
+             -----------
+
+             Returns whether an instrument is enabled by default in this version of MySQL.
+
+             Parameters
+             -----------
+
+             in_instrument VARCHAR(128): 
+               The instrument to check.
+
+             Returns
+             -----------
+
+             ENUM(\'YES\', \'NO\')
+
+             Example
+             -----------
+
+             mysql> SELECT sys.ps_is_instrument_default_enabled(\'statement/sql/select\');
+             +--------------------------------------------------------------+
+             | sys.ps_is_instrument_default_enabled(\'statement/sql/select\') |
+             +--------------------------------------------------------------+
+             | YES                                                          |
+             +--------------------------------------------------------------+
+             1 row in set (0.00 sec)
+            '
+    SQL SECURITY INVOKER
+    DETERMINISTIC 
+    READS SQL DATA 
+BEGIN
+    DECLARE v_enabled ENUM('YES', 'NO');
+
+    -- Currently the same in all versions
+    SET v_enabled = IF(in_instrument LIKE 'wait/io/file/%'
+                        OR in_instrument LIKE 'wait/io/table/%'
+                        OR in_instrument LIKE 'statement/%'
+                        OR in_instrument IN ('wait/lock/table/sql/handler', 'idle'),
+                       'YES',
+                       'NO'
+                    );
+
+    RETURN v_enabled;
+END$$
+
+DELIMITER ;