332 lines
11 KiB
Plaintext
332 lines
11 KiB
Plaintext
# 1. This test case is sensitive to execution timing. You may control
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# this sensitivity by the parameter below. Small values will result
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# in fast but more unstable execution, large values will improve
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# stability at the cost of speed. Basically, N is a number of seconds
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# to wait for operation to complete. Should be positive. Test runs
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# about 25*N seconds (it sleeps most of the time, so CPU speed is not
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# relevant).
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let $N = 5;
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#
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# 2. Some subtests
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# - create a new time zone
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# - run some statements
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# - delete the new time zone.
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# But the time zone name used gets somewhere cached and it cannot be
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# "reused" later in the same or another session for a new time zone.
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# Experiments (2008-11 MySQL 5.1) showed that none of the available
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# RESET/FLUSH commands removes these entries.
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# 2008-11 MySQL 5.1 Bug#39979 main.events_time_zone does not clean up
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# second bad effect
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# Therefore we compute unique and unusual timezone names to minimize
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# the likelihood that a later test uses the same name.
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#
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# 3. The subtests mentioned in 2. cause that the AUTO_INCREMENT value
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# within "SHOW CREATE TABLE mysql.timezone" differ from the initial one.
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# (Bug#39979 main.events_time_zone does not clean up)
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# Therefore we reset this value after each of these subtests.
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#
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# Note(mleich):
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# There is a significant likelihood that future improvements of the server
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# cause that the solutions for the issues mentioned in 2. and 3. will no
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# more work.
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# A mysql-test-run.pl feature which allows to enforce
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# 1. Server shutdown (-> Problem mentioned in 2. disappears)
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# 2. Reset all data to initial state (-> Problem mentioned in 3. disappears)
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# 3. Server start
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# after a tests would be a perfect replacement.
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#
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--source include/big_test.inc
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--disable_warnings
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DROP DATABASE IF EXISTS mysqltest_db1;
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--enable_warnings
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CREATE DATABASE mysqltest_db1;
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let $old_db= `SELECT DATABASE()`;
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USE mysqltest_db1;
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SET GLOBAL EVENT_SCHEDULER= OFF;
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SET @save_time_zone= @@TIME_ZONE;
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#
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# BUG#16420: Events: timestamps become UTC
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# BUG#26429: SHOW CREATE EVENT is incorrect for an event that
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# STARTS NOW()
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# BUG#26431: Impossible to re-create an event from backup if its
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# STARTS clause is in the past
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# WL#3698: Events: execution in local time zone
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#
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#----------------------------------------------------------------------
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# Create rounding function.
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# Disable query log to hide actual value of $N.
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--disable_query_log
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eval SET @step= $N;
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--enable_query_log
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# Since we are working in a separate database, we may use any names we
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# like.
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CREATE TABLE t_step (step INT);
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INSERT INTO t_step VALUES (@step);
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# We can't use @variables in function, because it will be called from
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# the event thread, and 'eval' doesn't work for multi-statements, so
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# we can't interpolate $variables either, hence we fetch the step
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# value from the table.
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delimiter //;
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CREATE FUNCTION round_to_step(i INT, n INT) RETURNS INT
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BEGIN
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DECLARE step INT;
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SELECT * INTO step FROM t_step;
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# We add 0.1 as a protection from inexact division.
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RETURN FLOOR((i % (step * n) + 0.1) / step);
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END//
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delimiter ;//
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# Test time computations wrt Daylight Saving Time shifts. We also
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# test here that the event operates in its time zone (see what NOW()
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# returns).
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#
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# Create a fake time zone with time transitions every 3*$N second.
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SET @step3= @step * 3;
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SET @step6= @step * 6;
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SET @unix_time= UNIX_TIMESTAMP() - 1;
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SET @unix_time= @unix_time - @unix_time % @step6;
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INSERT INTO mysql.time_zone VALUES (NULL, 'N');
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SET @tzid= LAST_INSERT_ID();
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INSERT INTO mysql.time_zone_transition_type
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VALUES (@tzid, 0, 0, 0, 'b16420_0');
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INSERT INTO mysql.time_zone_transition_type
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VALUES (@tzid, 1, @step3 - @step, 1, 'b16420_1');
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let $transition_unix_time= `SELECT @unix_time`;
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let $count= 30;
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--disable_query_log
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while ($count)
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{
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eval INSERT INTO mysql.time_zone_transition
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VALUES (@tzid, $transition_unix_time,
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$transition_unix_time % @step6 = 0);
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let $transition_unix_time= `SELECT $transition_unix_time + @step3`;
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dec $count;
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}
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--enable_query_log
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let $tz_name = `SELECT CONCAT('b16420_a',UNIX_TIMESTAMP())`;
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--replace_result $tz_name <TZ_NAME_1>
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eval INSERT INTO mysql.time_zone_name VALUES ('$tz_name', @tzid);
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CREATE TABLE t1 (count INT, unix_time INT, local_time INT, comment CHAR(80));
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CREATE TABLE t2 (count INT);
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INSERT INTO t2 VALUES (1);
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delimiter //;
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CREATE FUNCTION f1(comment CHAR(80)) RETURNS INT
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BEGIN
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DECLARE orig_tz CHAR(64);
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DECLARE unix_time INT;
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DECLARE local_now DATETIME;
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DECLARE utc_now DATETIME;
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DECLARE local_time INT;
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SET unix_time= UNIX_TIMESTAMP();
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SET local_now= FROM_UNIXTIME(unix_time);
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SET orig_tz= @@TIME_ZONE;
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SET TIME_ZONE = '+00:00';
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SET utc_now= FROM_UNIXTIME(unix_time);
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SET TIME_ZONE= orig_tz;
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SET local_time = unix_time + TIMESTAMPDIFF(SECOND, utc_now, local_now);
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SET unix_time= round_to_step(unix_time, 6);
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SET local_time= round_to_step(local_time, 6);
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INSERT INTO t1 VALUES ((SELECT count FROM t2),
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unix_time, local_time, comment);
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RETURN 0;
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END//
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delimiter ;//
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SET TIME_ZONE= '+00:00';
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CREATE EVENT e1 ON SCHEDULE EVERY @step SECOND
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STARTS FROM_UNIXTIME(@unix_time) DO SELECT f1("<e1>");
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--replace_result $tz_name <TZ_NAME_1>
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eval SET TIME_ZONE= '$tz_name';
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CREATE EVENT e2 ON SCHEDULE EVERY @step SECOND
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STARTS FROM_UNIXTIME(@unix_time) DO SELECT f1("<e2>");
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# We want to start at the beginning of the DST cycle, so we wait
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# untill current time divides by @step6.
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let $wait_timeout= `SELECT @step6 + 1`;
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let $wait_condition= SELECT UNIX_TIMESTAMP() % @step6 = @step6 - 1;
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--source include/wait_condition.inc
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# The second wait is needed because after the first wait we may end up
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# on the ending edge of a second. Second wait will bring us to the
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# beginning edge.
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let $wait_timeout= `SELECT @step + 1`;
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let $wait_condition= SELECT UNIX_TIMESTAMP() % @step6 = 0;
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--source include/wait_condition.inc
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# Note that after the scheduler is enabled, the event will be
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# scheduled only for the next second.
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SET GLOBAL EVENT_SCHEDULER= ON;
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# We want to run after the events are executed.
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SELECT SLEEP(@step / 2);
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let $count= 7;
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--disable_query_log
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--disable_result_log
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while ($count)
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{
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SELECT SLEEP(@step);
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eval SELECT CASE $count
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WHEN 5 THEN f1(CONCAT("Second pass after backward -2 step shift,",
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" e2 should not be executed"))
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WHEN 4 THEN f1(CONCAT("Second pass after backward -2 step shift,",
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" e2 should not be executed"))
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WHEN 2 THEN f1(CONCAT("Forward +2 step shift, local 0, 1 are skipped,",
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" e2 should be executed"))
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ELSE f1("e2 should be executed")
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END;
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UPDATE t2 SET count= count + 1;
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dec $count;
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}
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--enable_result_log
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--enable_query_log
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SET GLOBAL EVENT_SCHEDULER= OFF;
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SELECT * FROM t1 ORDER BY count, comment;
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SET TIME_ZONE= @save_time_zone;
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DROP EVENT e2;
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DROP EVENT e1;
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DROP FUNCTION f1;
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DROP TABLE t1, t2;
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DELETE FROM mysql.time_zone_name WHERE time_zone_id = @tzid;
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DELETE FROM mysql.time_zone_transition_type WHERE time_zone_id = @tzid;
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DELETE FROM mysql.time_zone_transition WHERE time_zone_id = @tzid;
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DELETE FROM mysql.time_zone WHERE time_zone_id = @tzid;
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let $time_zone_auto_inc = `SELECT MAX(Time_zone_id) + 1 FROM mysql.time_zone`;
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eval ALTER TABLE mysql.time_zone AUTO_INCREMENT = $time_zone_auto_inc;
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#----------------------------------------------------------------------
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# Test MONTH interval.
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#
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SET TIME_ZONE= '+00:00';
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CREATE TABLE t1 (event CHAR(2), dt DATE, offset INT);
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INSERT INTO mysql.time_zone VALUES (NULL, 'N');
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SET @tzid= LAST_INSERT_ID();
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SET @now= UNIX_TIMESTAMP();
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SET @offset_month_01= UNIX_TIMESTAMP('2030-01-31 12:00:00') - @now;
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SET @offset_month_02= UNIX_TIMESTAMP('2030-02-28 12:00:00') - @now - 5*@step;
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SET @offset_month_03= UNIX_TIMESTAMP('2030-03-31 12:00:00') - @now - 5*@step;
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SET @offset_month_04= UNIX_TIMESTAMP('2030-04-30 12:00:00') - @now - 13*@step;
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INSERT INTO mysql.time_zone_transition_type
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VALUES (@tzid, 0, @offset_month_01, 0, 'b16420_0');
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INSERT INTO mysql.time_zone_transition_type
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VALUES (@tzid, 1, @offset_month_02, 1, 'b16420_1');
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INSERT INTO mysql.time_zone_transition_type
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VALUES (@tzid, 2, @offset_month_03, 1, 'b16420_2');
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INSERT INTO mysql.time_zone_transition_type
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VALUES (@tzid, 3, @offset_month_04, 1, 'b16420_3');
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INSERT INTO mysql.time_zone_transition
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VALUES (@tzid, @now, 0);
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INSERT INTO mysql.time_zone_transition
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VALUES (@tzid, @now + 3 * @step, 1);
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INSERT INTO mysql.time_zone_transition
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VALUES (@tzid, @now + 7 * @step, 2);
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INSERT INTO mysql.time_zone_transition
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VALUES (@tzid, @now + 12 * @step, 3);
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let $tz_name = `SELECT CONCAT('b16420_b',UNIX_TIMESTAMP())`;
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--replace_result $tz_name <TZ_NAME_2>
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eval INSERT INTO mysql.time_zone_name VALUES ('$tz_name', @tzid);
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--replace_result $tz_name <TZ_NAME_2>
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eval SET TIME_ZONE= '$tz_name';
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SET GLOBAL EVENT_SCHEDULER= ON;
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let $now= `SELECT @now`;
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--disable_query_log
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eval CREATE EVENT e1 ON SCHEDULE EVERY 1 MONTH
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STARTS FROM_UNIXTIME($now - @step) DO
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INSERT INTO t1 VALUES
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("e1", NOW(), round_to_step(UNIX_TIMESTAMP() - $now, 4) - 1);
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eval CREATE EVENT e2 ON SCHEDULE EVERY 1 MONTH
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STARTS FROM_UNIXTIME($now + @step) DO
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INSERT INTO t1 VALUES
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("e2", NOW(), round_to_step(UNIX_TIMESTAMP() - $now, 4) - 1);
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--enable_query_log
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let $wait_timeout= `SELECT 16 * @step`;
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let $wait_condition= SELECT COUNT(*) = 7 FROM t1;
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--source include/wait_condition.inc
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SET GLOBAL EVENT_SCHEDULER= OFF;
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--echo Below we should see the following:
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--echo - On Jan 31 only e2 is executed, because we started later than
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--echo e1 should have been executed. Offset of e2 is 0 because of
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--echo the late start, not 1.
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--echo - The next execution is on Feb 28 (last day of Feb). Both events
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--echo are executed in their times, offsets are -1 and 1.
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--echo - The next time is Mar 31. Because the time of event
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--echo execution was skipped over, events are executed right away,
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--echo offsets are 2 and 2.
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--echo - The next time is Apr 30. Events are again executed in their
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--echo appointed times, offsets are -1 and 1.
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SELECT * FROM t1 ORDER BY dt, event;
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DROP EVENT e2;
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DROP EVENT e1;
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DROP TABLE t1;
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SET TIME_ZONE= @save_time_zone;
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DELETE FROM mysql.time_zone_name WHERE time_zone_id = @tzid;
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DELETE FROM mysql.time_zone_transition_type WHERE time_zone_id = @tzid;
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DELETE FROM mysql.time_zone_transition WHERE time_zone_id = @tzid;
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DELETE FROM mysql.time_zone WHERE time_zone_id = @tzid;
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let $time_zone_auto_inc = `SELECT MAX(Time_zone_id) + 1 FROM mysql.time_zone`;
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eval ALTER TABLE mysql.time_zone AUTO_INCREMENT = $time_zone_auto_inc;
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DROP FUNCTION round_to_step;
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DROP TABLE t_step;
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DROP DATABASE mysqltest_db1;
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--disable_query_log
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eval USE $old_db;
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--enable_query_log
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let $wait_condition=
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SELECT COUNT(*) = 0 FROM information_schema.processlist
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WHERE db='mysqltest_db1' AND command = 'Connect' AND user=current_user();
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--source include/wait_condition.inc
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--echo End of 5.1 tests.
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