3f38845132
In MariaDB, `UNIX_TIMESTAMP(CURTIME(4))` yields `NULL`, not a meaningful value. It's better to work with `TIMESTAMP` anyway, than with `TIME` types, just in case the benchmark is run at midnight
94 lines
2.2 KiB
SQL
94 lines
2.2 KiB
SQL
-- Copyright Data Geekery GmbH
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--
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-- Licensed under the Apache License, Version 2.0 (the "License");
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-- you may not use this file except in compliance with the License.
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-- You may obtain a copy of the License at
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--
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-- http://www.apache.org/licenses/LICENSE-2.0
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--
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-- Unless required by applicable law or agreed to in writing, software
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-- distributed under the License is distributed on an "AS IS" BASIS,
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-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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-- See the License for the specific language governing permissions and
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-- limitations under the License.
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--
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CREATE TABLE IF NOT EXISTS print (text VARCHAR(500));
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delimiter //
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CREATE PROCEDURE benchmark ()
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BEGIN
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DECLARE done INT DEFAULT FALSE;
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DECLARE v_ts BIGINT;
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DECLARE v_repeat INT DEFAULT 10000;
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DECLARE r, c INT;
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DECLARE a INT;
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DECLARE cur1 CURSOR FOR
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SELECT 1 AS a FROM dual;
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DECLARE cur2 CURSOR FOR
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SELECT 1 AS a FROM dual UNION SELECT 2 FROM dual UNION SELECT 3 FROM dual;
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DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
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SET r = 0;
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REPEAT
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SET v_ts = ROUND(UNIX_TIMESTAMP(CURRENT_TIMESTAMP(4)) * 1000);
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SET c = 0;
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REPEAT
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OPEN cur1;
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read_loop: LOOP
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FETCH cur1 INTO a;
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IF done THEN
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LEAVE read_loop;
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END IF;
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END LOOP;
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CLOSE cur1;
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SET c = c + 1;
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UNTIL c >= v_repeat END REPEAT;
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INSERT INTO print VALUES (CONCAT('Run ', r, ', Statement 1 : ', ROUND(UNIX_TIMESTAMP(CURRENT_TIMESTAMP(4)) * 1000) - v_ts));
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SET v_ts = ROUND(UNIX_TIMESTAMP(CURRENT_TIMESTAMP(4)) * 1000);
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SET c = 0;
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REPEAT
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OPEN cur2;
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read_loop: LOOP
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FETCH cur2 INTO a;
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IF done THEN
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LEAVE read_loop;
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END IF;
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END LOOP;
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CLOSE cur2;
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SET c = c + 1;
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UNTIL c >= v_repeat END REPEAT;
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INSERT INTO print VALUES (CONCAT('Run ', r, ', Statement 2 : ', ROUND(UNIX_TIMESTAMP(CURRENT_TIMESTAMP(4)) * 1000) - v_ts));
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SET r = r + 1;
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UNTIL r >= 5 END REPEAT;
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END//
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delimiter ;
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CALL benchmark();
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SELECT text
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FROM print
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UNION ALL
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SELECT null
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UNION ALL
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SELECT 'Copyright Data Geekery GmbH'
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UNION ALL
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SELECT 'https://www.jooq.org/benchmark';
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DROP PROCEDURE benchmark;
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DROP TABLE print;
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