Getting a duplicate key error in MYSQL. No duplicate found - mysql

I have a table. (Code taken from table generation code, I did not write this)
DROP TABLE IF EXISTS `CatalogueBasket`;
CREATE TABLE `CatalogueBasket` (
`ID` int(11) NOT NULL auto_increment,
`Shopper` char(35) NOT NULL default '',
`ItemLink` int(11) NOT NULL default '0',
`Quantity` int(11) NOT NULL default '0',
`Created` datetime NOT NULL default '0000-00-00 00:00:00',
`ExpectedDelivery1` datetime default NULL,
`ExpectedDelivery2` datetime default NULL,
`Comments` char(255) default NULL,
`Status` int(10) unsigned default NULL,
`QuantityShipped` int(10) unsigned default NULL,
`HarmonyNumber` int(10) unsigned default NULL,
`StartDate` datetime default NULL,
KEY `ID` (`ID`),
KEY `Shopper` (`Shopper`),
KEY `ItemLink` (`ItemLink`),
KEY `Quantity` (`Quantity`),
KEY `Created` (`Created`)
) TYPE=MyISAM;
When trying to insert a new Row at the end of this table I am getting the following message.
Duplicate entry '116604' for key 1
The insert statement is:
INSERT INTO CatalogueBasket (Shopper,ItemLink,Quantity,Created, Status, StartDate)
VALUES ('0.80916300 1338507348',58825,1,'2012-06-01 09:58:23', 0, '0-0-0')
I'm assuming it is talking about the ID column.
If I run the following query I get 116603 as the last key
SELECT * FROM `CatalogueBasket` order by ID desc limit 1
Any insight / help into this is appreciated.

Related

Does MySQL different engine types (InnoDB and Aria) affect on query with large amount of LEFT JOIN?

I have one heavy MySQL query with 12 LEFT JOIN and noticed that some of tables have InnoDB engine and some Aria.
I've attached EXPLAIN of this query and pointed engine types at image with corresponding letters I and A.
Does fact of different engines affects on query speed and how seriously? Does changing of engines types helps to optimize query execution?
What else I could do to optimize this query?
Query (if needed)
SELECT user.id, user.first_name, user.last_name, user.birthday, user.email, user.phone, user.address_id,
user.alt_address_id, user.type, user.level_id, user_level.level, user.consecutive_orders, user.orders_count,
user.code_id, user.period, user.preferences, user.is_pick_up, user.pickup_address_id, user.is_active,
user.first_delivery_date, user.change_delivery_date, user.eway_id, user.date_created,
user.rest_referral_discount as `rest_referral_discount`, user.rest_code_discount as `rest_code_discount`,
user.rest_code_box_discount as `rest_code_box_discount`, user.rest_code_mp_discount as `rest_code_mp_discount`,
user.rest_code_tup_discount as `rest_code_tup_discount`, user.nf_pantry_list, user.nf_next_weeks_menu,
user.nf_paused_reminder, user.nf_welcome, user.nf_expected_delivery_time,
user.nf_delivery, address_pickup.address as `pickup_address`, address.address, address.unit,
address.instructions, location.id location_id, location.postcode, location.suburb,
location_state.code state_code, delivery_area.delivery_area_window_id delivery_area_window_id,
delivery_area_by_location.fee delivery_fee_value, delivery_area_window.day delivery_day,
delivery_area_window.day_name_full delivery_day_name_full, delivery_area_window.window delivery_window,
user.delivery_area_id, user.alt_delivery_area_id, if (user.is_pick_up, 0, delivery_area.fee) delivery_fee,
if (user.type = 1 || user.type = 2, 5, 0) ondemand_fee, code.code code_name, code.amount code_amount,
code.value code_value, code.is_permanent is_code_permanent, code.repeat code_repeat, code.times code_times,
code.apply_to code_apply_to, code.valid_from code_valid_from, code.valid_until code_valid_until,
if (code_used.count > 0, 1, 0) is_code_used, if (code_used.count > 0, code_used.count, 0) code_used_count,
if (user.is_pick_up, IFNULL(delivery_area_by_location.topup_available, 0), IFNULL(delivery_area.topup_available, 0)) topup_available,
(SELECT `order`.`id` FROM `order` LEFT JOIN `gift` ON gift.order_id = order.id
WHERE (`order`.`delivery_date` BETWEEN '2021-02-07' and '2021-02-13') and (user.id = order.user_id) and (`gift`.`id` IS NULL)
and (`order`.`status` = 10) ORDER BY `order`.`date_created` DESC LIMIT 1) as `order_id`,
(SELECT `order`.`delivery_date` FROM `order`
LEFT JOIN `gift`
ON gift.order_id = order.id
WHERE (user.id = order.user_id) and (`gift`.`id` IS NULL) and (`order`.`status` = 10) ORDER BY `order`.`date_created` DESC LIMIT 1) as `last_order_delivery_date`
FROM `user`
LEFT JOIN `address`
ON user.address_id = address.id
LEFT JOIN `address_pickup`
ON user.pickup_address_id = address_pickup.id
LEFT JOIN `delivery_area`
ON user.delivery_area_id = delivery_area.id
LEFT JOIN `delivery_area_window`
ON delivery_area_window.id = delivery_area.delivery_area_window_id
LEFT JOIN `user_level`
ON user.level_id = user_level.id
LEFT JOIN `location`
ON address.location_id = location.id
LEFT JOIN `location_state`
ON location.state_id = location_state.id
LEFT JOIN `delivery_area` `delivery_area_by_location` ON delivery_area_by_location.location_id = location.id
LEFT JOIN (SELECT count(*) count, `user_id`, `code_id` FROM `order` WHERE (code_id > 0) and (`order`.`status` = 10) GROUP BY `user_id`, `code_id`) `code_used`
ON ((user.id = code_used.user_id) and (code_used.code_id = user.code_id))
LEFT JOIN `code`
ON user.code_id = code.id WHERE (`user`.`type` = 0) and (`user`.`status` = 10)
GROUP BY `user`.`id` ORDER BY `last_name` LIMIT 15
UPD: CREATE TABLE
CREATE TABLE `address` (
`id` int(11) UNSIGNED NOT NULL,
`location_id` int(11) UNSIGNED NOT NULL,
`address` text NOT NULL,
`unit` char(4) NOT NULL,
`instructions` text NOT NULL,
`regular` tinyint(1) NOT NULL DEFAULT '1',
`topup` tinyint(1) NOT NULL DEFAULT '1',
`date_from` date DEFAULT NULL,
`date_to` date DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `address_pickup` (
`id` tinyint(3) UNSIGNED NOT NULL,
`address` text NOT NULL
) ENGINE=Aria DEFAULT CHARSET=utf8;
CREATE TABLE `code` (
`id` smallint(6) UNSIGNED NOT NULL,
`code` varchar(255) NOT NULL,
`amount` decimal(7,2) NOT NULL,
`value` tinyint(1) NOT NULL DEFAULT '0' COMMENT '0 - number; 1 - percent',
`is_mswa` tinyint(4) DEFAULT '0',
`is_permanent` tinyint(4) DEFAULT '0',
`repeat` tinyint(4) DEFAULT '0',
`apply_to` tinyint(4) DEFAULT '0' COMMENT '0 - both; 1 - box; 2 - mp;',
`times` int(11) NOT NULL DEFAULT '0',
`date_created` datetime NOT NULL,
`date_updated` datetime NOT NULL,
`valid_from` date NOT NULL,
`valid_until` date DEFAULT NULL,
`author` varchar(255) NOT NULL,
`checkout_text` text NOT NULL,
`status` smallint(6) UNSIGNED NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `delivery_area` (
`id` int(10) UNSIGNED NOT NULL,
`location_id` int(11) NOT NULL,
`fee` decimal(7,2) NOT NULL DEFAULT '0.00',
`delivery_area_window_id` tinyint(4) UNSIGNED NOT NULL DEFAULT '1',
`topup_available` tinyint(1) NOT NULL DEFAULT '1'
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `delivery_area_window` (
`id` tinyint(4) UNSIGNED NOT NULL,
`day` tinyint(3) UNSIGNED NOT NULL,
`day_name` varchar(255) NOT NULL,
`day_name_full` varchar(255) NOT NULL,
`window` varchar(255) NOT NULL DEFAULT '',
`pickup` tinyint(4) NOT NULL DEFAULT '0'
) ENGINE=Aria DEFAULT CHARSET=utf8;
CREATE TABLE `gift` (
`id` int(11) UNSIGNED NOT NULL,
`user_id` int(11) UNSIGNED NOT NULL,
`recipient_id` int(11) UNSIGNED NOT NULL,
`type` tinyint(1) NOT NULL COMMENT '0 - card; 1 - box;',
`message` text NOT NULL,
`token` char(24) DEFAULT NULL,
`order_id` int(11) UNSIGNED NOT NULL,
`is_redeemed` tinyint(1) NOT NULL,
`date_exp` date DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `location` (
`id` int(10) UNSIGNED NOT NULL,
`postcode` int(4) UNSIGNED NOT NULL,
`suburb` varchar(45) NOT NULL,
`dc` varchar(45) NOT NULL,
`state_id` tinyint(3) UNSIGNED NOT NULL,
`type_id` tinyint(4) UNSIGNED NOT NULL,
`lat` double DEFAULT NULL,
`lon` double DEFAULT NULL
) ENGINE=Aria DEFAULT CHARSET=utf8;
CREATE TABLE `location_state` (
`id` tinyint(4) UNSIGNED NOT NULL,
`code` char(3) NOT NULL,
`state` varchar(255) NOT NULL
) ENGINE=Aria DEFAULT CHARSET=utf8;
CREATE TABLE `order` (
`id` int(11) UNSIGNED NOT NULL,
`user_id` int(11) UNSIGNED NOT NULL,
`shipping_address_id` int(11) UNSIGNED NOT NULL,
`topup_address_id` int(10) UNSIGNED NOT NULL,
`pickup_address_id` tinyint(3) UNSIGNED DEFAULT NULL,
`preferences` int(11) UNSIGNED NOT NULL,
`referral_discount` decimal(7,2) NOT NULL DEFAULT '0.00',
`code_id` int(11) UNSIGNED NOT NULL,
`code_discount` decimal(7,2) NOT NULL DEFAULT '0.00',
`pickup_discount` decimal(7,2) NOT NULL DEFAULT '0.00',
`admin_discount` decimal(7,2) NOT NULL DEFAULT '0.00',
`level_discount` decimal(7,2) NOT NULL DEFAULT '0.00',
`delivery_fee` decimal(7,2) NOT NULL DEFAULT '0.00',
`topup_delivery_fee` decimal(7,2) NOT NULL,
`ondemand_fee` decimal(7,2) NOT NULL DEFAULT '0.00',
`amount` decimal(7,2) NOT NULL DEFAULT '0.00',
`retry_payment` tinyint(3) UNSIGNED NOT NULL DEFAULT '0' COMMENT '1-wait answer; 2-recharge with sms; 3-recharge without sms',
`retry_payment_sms` int(11) UNSIGNED NOT NULL DEFAULT '0' COMMENT '0 - processed; >0 - sms id',
`retry_payment_email` int(10) UNSIGNED NOT NULL DEFAULT '0',
`eway_errors` text NOT NULL,
`date_created` datetime NOT NULL,
`date_updated` datetime NOT NULL,
`delivery_date` date DEFAULT NULL,
`status` smallint(6) UNSIGNED NOT NULL DEFAULT '10',
`processing_status` smallint(6) UNSIGNED NOT NULL,
`processing_status_edited` tinyint(1) UNSIGNED NOT NULL DEFAULT '0',
`has_topup` tinyint(1) UNSIGNED NOT NULL DEFAULT '0',
`is_topup_only` tinyint(1) UNSIGNED NOT NULL DEFAULT '0'
) ENGINE=InnoDB DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT;
CREATE TABLE `user` (
`id` int(11) UNSIGNED NOT NULL,
`first_name` varchar(255) NOT NULL,
`last_name` varchar(255) NOT NULL,
`birthday` date DEFAULT NULL,
`auth_key` varchar(32) NOT NULL,
`password_hash` varchar(255) NOT NULL,
`password_reset_token` varchar(255) DEFAULT NULL,
`email` varchar(255) NOT NULL,
`phone` varchar(255) DEFAULT NULL,
`custom_ref_code` varchar(255) DEFAULT NULL,
`eway_id` bigint(20) UNSIGNED DEFAULT NULL COMMENT 'eWAY Customer Token ID',
`active_campaign_id` int(11) UNSIGNED DEFAULT NULL COMMENT 'ActiveCampaign subscriber_id',
`level_id` tinyint(4) UNSIGNED NOT NULL DEFAULT '1',
`address_id` int(11) UNSIGNED NOT NULL DEFAULT '0',
`delivery_area_id` int(10) UNSIGNED DEFAULT NULL,
`alt_address_id` int(10) UNSIGNED DEFAULT NULL,
`alt_delivery_area_id` int(10) UNSIGNED DEFAULT NULL,
`code_id` int(11) UNSIGNED NOT NULL DEFAULT '0',
`period` tinyint(4) UNSIGNED NOT NULL DEFAULT '1' COMMENT '1 - Once a Week; 2 - Fortnightly',
`preferences` int(11) UNSIGNED NOT NULL DEFAULT '0',
`is_pick_up` tinyint(1) UNSIGNED NOT NULL DEFAULT '0',
`pickup_address_id` tinyint(3) UNSIGNED DEFAULT NULL,
`is_active` tinyint(4) NOT NULL DEFAULT '1' COMMENT '0 - Inactive; 1 - Active; -1 - Blocked',
`status` smallint(6) NOT NULL DEFAULT '10',
`type` tinyint(4) UNSIGNED NOT NULL COMMENT '0 - Set And Forget; 1 - On Demand; 2 - Trial; 3 - Potential;',
`first_delivery_date` date DEFAULT NULL,
`last_delivery_date` date DEFAULT NULL,
`change_delivery_date` date DEFAULT NULL,
`nf_pantry_list` tinyint(1) NOT NULL DEFAULT '1',
`nf_next_weeks_menu` tinyint(1) NOT NULL DEFAULT '1',
`nf_paused_reminder` tinyint(1) NOT NULL DEFAULT '1',
`nf_expected_delivery_time` tinyint(1) NOT NULL DEFAULT '1',
`nf_delivery` tinyint(1) NOT NULL DEFAULT '1',
`nf_welcome` tinyint(1) NOT NULL DEFAULT '1',
`date_created` datetime NOT NULL,
`date_updated` datetime NOT NULL,
`consecutive_orders` smallint(5) UNSIGNED DEFAULT NULL,
`orders_count` smallint(5) UNSIGNED NOT NULL DEFAULT '0',
`rest_referral_discount` decimal(7,2) UNSIGNED NOT NULL,
`rest_code_discount` decimal(7,2) UNSIGNED NOT NULL,
`rest_code_box_discount` decimal(7,2) UNSIGNED NOT NULL,
`rest_code_mp_discount` decimal(7,2) UNSIGNED NOT NULL,
`rest_code_tup_discount` decimal(7,2) UNSIGNED NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `user_level` (
`id` int(11) NOT NULL,
`level` varchar(255) NOT NULL,
`icon` varchar(255) NOT NULL,
`description` text NOT NULL,
`from` int(11) NOT NULL DEFAULT '0',
`to` int(11) NOT NULL DEFAULT '0',
`discount` int(11) NOT NULL DEFAULT '0'
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
And indexes
--
-- Indexes table `address`
--
ALTER TABLE `address`
ADD PRIMARY KEY (`id`),
ADD KEY `location_id` (`location_id`),
ADD KEY `regular` (`regular`),
ADD KEY `topup` (`topup`),
ADD KEY `date_to` (`date_to`),
ADD KEY `date_from` (`date_from`);
--
-- Indexes table `address_pickup`
--
ALTER TABLE `address_pickup`
ADD PRIMARY KEY (`id`);
--
-- Indexes table `code`
--
ALTER TABLE `code`
ADD PRIMARY KEY (`id`),
ADD KEY `status` (`status`),
ADD KEY `valid_from` (`valid_from`),
ADD KEY `valid_until` (`valid_until`),
ADD KEY `date_created` (`date_created`),
ADD KEY `code` (`code`) USING BTREE,
ADD KEY `is_mswa` (`is_mswa`);
--
-- Indexes table `delivery_area`
--
ALTER TABLE `delivery_area`
ADD PRIMARY KEY (`id`),
ADD KEY `day` (`delivery_area_window_id`),
ADD KEY `location_id` (`location_id`) USING BTREE,
ADD KEY `friday_topup_available` (`topup_available`);
--
-- Indexes table `delivery_area_window`
--
ALTER TABLE `delivery_area_window`
ADD PRIMARY KEY (`id`),
ADD KEY `day` (`day`),
ADD KEY `pickup_only` (`pickup`);
--
-- Indexes table `gift`
--
ALTER TABLE `gift`
ADD PRIMARY KEY (`id`),
ADD UNIQUE KEY `token` (`token`),
ADD KEY `user_id` (`user_id`),
ADD KEY `recipient_id` (`recipient_id`),
ADD KEY `order_id` (`order_id`),
ADD KEY `is_redeemed` (`is_redeemed`);
--
-- Indexes table `location`
--
ALTER TABLE `location`
ADD PRIMARY KEY (`id`),
ADD KEY `idx_lon` (`lon`),
ADD KEY `idx_lat` (`lat`),
ADD KEY `type_id` (`type_id`),
ADD KEY `state_id` (`state_id`),
ADD KEY `postcode` (`postcode`),
ADD KEY `suburb_2` (`suburb`),
ADD KEY `postcode_suburb` (`postcode`,`suburb`) USING BTREE;
ALTER TABLE `location` ADD FULLTEXT KEY `suburb` (`suburb`);
--
-- Indexes table `location_state`
--
ALTER TABLE `location_state`
ADD PRIMARY KEY (`id`);
--
-- Indexes table `order`
--
ALTER TABLE `order`
ADD PRIMARY KEY (`id`),
ADD KEY `client_id` (`user_id`),
ADD KEY `status` (`status`),
ADD KEY `shipping_address_id` (`shipping_address_id`),
ADD KEY `preferences` (`preferences`),
ADD KEY `processing_status` (`processing_status`),
ADD KEY `date_created` (`date_created`),
ADD KEY `delivery_date` (`delivery_date`),
ADD KEY `pickup_address_id` (`pickup_address_id`),
ADD KEY `processing_status_edited` (`processing_status_edited`),
ADD KEY `retry_payment_sms` (`retry_payment_sms`),
ADD KEY `retry_payment` (`retry_payment`),
ADD KEY `retry_payment_email` (`retry_payment_email`),
ADD KEY `has_topup` (`has_topup`),
ADD KEY `is_topup_only` (`is_topup_only`),
ADD KEY `friday_address_id` (`topup_address_id`),
ADD KEY `code_id` (`code_id`),
ADD KEY `user_id` (`user_id`);
--
-- Indexes table `user`
--
ALTER TABLE `user`
ADD PRIMARY KEY (`id`),
ADD UNIQUE KEY `password_reset_token` (`password_reset_token`),
ADD KEY `level_id` (`level_id`),
ADD KEY `eway_id` (`eway_id`),
ADD KEY `password_hash` (`password_hash`),
ADD KEY `auth_key` (`auth_key`),
ADD KEY `email` (`email`),
ADD KEY `period` (`period`),
ADD KEY `preferences` (`preferences`),
ADD KEY `is_pick_up` (`is_pick_up`),
ADD KEY `is_active` (`is_active`),
ADD KEY `date_created` (`date_created`),
ADD KEY `phone` (`phone`) USING BTREE,
ADD KEY `active_campaign_id` (`active_campaign_id`),
ADD KEY `custom_ref_code` (`custom_ref_code`),
ADD KEY `consecutive_orders` (`consecutive_orders`),
ADD KEY `pickup_address_id` (`pickup_address_id`),
ADD KEY `rest_referral_discount` (`rest_referral_discount`),
ADD KEY `rest_code_discount` (`rest_code_discount`),
ADD KEY `rest_code_box_discount` (`rest_code_box_discount`),
ADD KEY `rest_code_mp_discount` (`rest_code_mp_discount`),
ADD KEY `delivery_area_id` (`delivery_area_id`),
ADD KEY `rest_code_tup_discount` (`rest_code_tup_discount`),
ADD KEY `orders_count` (`orders_count`),
ADD KEY `alt_delivery_address_id` (`alt_address_id`),
ADD KEY `alt_delivery_area_id` (`alt_delivery_area_id`),
ADD KEY `address_id` (`address_id`),
ADD KEY `code_id` (`code_id`),
ADD KEY `status` (`status`),
ADD KEY `type` (`type`),
ADD KEY `last_name` (`last_name`);
--
-- Indexes table `user_level`
--
ALTER TABLE `user_level`
ADD PRIMARY KEY (`id`);
--
-- AUTO_INCREMENT
--
ALTER TABLE `address`
MODIFY `id` int(11) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `address_pickup`
MODIFY `id` tinyint(3) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `code`
MODIFY `id` smallint(6) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `delivery_area`
MODIFY `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `delivery_area_window`
MODIFY `id` tinyint(4) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `gift`
MODIFY `id` int(11) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `location`
MODIFY `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `location_state`
MODIFY `id` tinyint(4) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `order`
MODIFY `id` int(11) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `user`
MODIFY `id` int(11) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE `user_level`
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT;
COMMIT;

For table order:
INDEX(status, code_id, order_id)
INDEX(status, order_id, code_id)
(I can't tell which would be better; the Optimizer can decide.)
Don't use LEFT JOIN when the 'right' table is not optional. It makes it tedious for a human (and the Optimizer) to figure the intent.
User needs
INDEX(type, status, code_id, code, id, last_name)
It is almost always beneficial to DROP INDEX(a) when you ADD INDEX(a,b). I bring that up because you probably have some one-column indexes.
If you need further help, please provide SHOW CREATE TABLE. I suspect that the query could be turned inside-out to great benefit. This involves finding the 15 ids first; then after that do all the JOINs.
That might have this as the first "derived" table since it generates only 15 rows, not the 9976 estimated in the Explain:
FROM ( SELECT id, `code`, code_id, last_name
FROM user
WHERE `type` = 0
AND `status` = 10
GROUP BY `id`
ORDER BY `last_name`
LIMIT 15
) AS u
JOIN ...

MySQL - Fix my poor performing UPDATE?

I have an event which fires periodically to 'abort' some abandoned games (a simple matching server).
This update is proving very (VERY) slow and I'm looking for advice on doing this better.
Problematic Update:
UPDATE user SET skill=skill+
(SELECT count(participant_1) * 25 FROM matches
WHERE score_2 IS NULL
AND score_2_time IS NOT NULL
AND participant_1=user.id
AND score_2_time < (NOW() - INTERVAL 1 HOUR)
AND status=0);
Matches table:
matches CREATE TABLE `matches` (
 `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
 `match_hash` varchar(64) DEFAULT NULL,
 `skill` int(10) unsigned DEFAULT NULL,
 `status` int(10) unsigned DEFAULT NULL,
 `participant_1` int(10) unsigned DEFAULT NULL,
 `score_1` int(10) unsigned DEFAULT NULL,
 `score_1_time` timestamp NULL DEFAULT NULL,
 `participant_1_rematched` tinyint(4) DEFAULT NULL,
 `participant_2` int(10) unsigned DEFAULT NULL,
 `score_2` int(10) unsigned DEFAULT NULL,
 `score_2_time` timestamp NULL DEFAULT NULL,
 `participant_2_rematched` tinyint(4) DEFAULT NULL,
 `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
 `finished_at` timestamp NULL DEFAULT NULL,
 PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=40667 DEFAULT CHARSET=latin1
User table:
user CREATE TABLE `user` (
 `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
 `name` varchar(32) COLLATE utf8_unicode_ci DEFAULT NULL,
 `skill` int(10) unsigned DEFAULT NULL,
 `created` timestamp NOT NULL DEFAULT current_timestamp(),
 PRIMARY KEY (`id`),
 UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB AUTO_INCREMENT=1876 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
Any guidance is greatly appreciated.

You need more indexes on the matches table, certainly at least participant_1, and whatever else is mentioned in the WHERE clause that helps. Probably participant_1 should be a foreign key into user.id for integrity reasons.

Try this query:
update user a join (SELECT participant_1,count(participant_1) * 25 as count FROM matches
WHERE score_2 IS NULL
AND score_2_time IS NOT NULL
AND score_2_time < (NOW() - INTERVAL 1 HOUR)
AND status=0 group by participant_1) b on a.id=b.participant_1 SET a.skill=a.skill+b.count

MySql Trigger: can't retrieve one specific column from NEW in after insert trigger

I have 3 tables:
pp088_project_tasks
CREATE TABLE IF NOT EXISTS `pp088_project_tasks` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`task_list_id` int(10) unsigned DEFAULT NULL,
`text` text CHARACTER SET utf8 COLLATE utf8_unicode_ci,
`start_date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
`due_date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
`assigned_to_company_id` int(10) DEFAULT NULL,
`assigned_to_user_id` int(10) unsigned DEFAULT NULL,
`completed_on` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
`completed_by_id` int(10) unsigned DEFAULT NULL,
`created_on` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
`created_by_id` int(10) unsigned DEFAULT NULL,
`updated_on` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
`updated_by_id` int(10) unsigned DEFAULT NULL,
`order` int(10) unsigned NOT NULL DEFAULT '0',
PRIMARY KEY (`id`),
KEY `task_list_id` (`task_list_id`),
KEY `completed_on` (`completed_on`),
KEY `created_on` (`created_on`),
KEY `order` (`order`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=76 ;
pp088_project_task_lists
CREATE TABLE IF NOT EXISTS `pp088_project_task_lists` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`milestone_id` int(10) unsigned NOT NULL DEFAULT '0',
`project_id` int(10) unsigned DEFAULT NULL,
`name` varchar(100) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT NULL,
`priority` int(3) unsigned NOT NULL DEFAULT '0',
`description` text CHARACTER SET utf8 COLLATE utf8_unicode_ci,
`start_date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
`due_date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
`score` int(3) unsigned NOT NULL DEFAULT '0',
`is_private` tinyint(1) unsigned NOT NULL DEFAULT '0',
`completed_on` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
`completed_by_id` int(10) unsigned DEFAULT NULL,
`created_on` datetime DEFAULT NULL,
`created_by_id` int(10) unsigned NOT NULL DEFAULT '0',
`updated_on` datetime DEFAULT NULL,
`updated_by_id` int(10) unsigned NOT NULL DEFAULT '0',
`order` tinyint(3) unsigned NOT NULL DEFAULT '0',
PRIMARY KEY (`id`),
KEY `milestone_id` (`milestone_id`),
KEY `project_id` (`project_id`),
KEY `completed_on` (`completed_on`),
KEY `created_on` (`created_on`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=6 ;
gantt_tasks
CREATE TABLE IF NOT EXISTS `gantt_tasks` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`text` varchar(255) NOT NULL,
`start_date` date NOT NULL,
`duration` int(11) NOT NULL,
`progress` float NOT NULL DEFAULT '1',
`sortorder` int(11) NOT NULL,
`parent` int(11) NOT NULL,
`projectID` int(10) unsigned DEFAULT NULL,
`tipo_evento` varchar(100) NOT NULL,
`idPier` int(11) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=48 ;
I created an AFTER INSERT trigger on the 'pp088_project_tasks' table to insert into 'gantt_tasks'
CREATE TRIGGER `insert_gantt_task` AFTER INSERT ON `pp088_project_tasks`
FOR EACH ROW BEGIN
declare project_id int;
declare duracion int;
set project_id=(select project_id from pp088_project_task_lists where id=NEW.task_list_id);
set duracion=(select DATEDIFF(NEW.due_date,NEW.start_date));
insert into gantt_tasks (text,start_date,duration,projectID,idPier) values (NEW.text,NEW.start_date,duracion,project_id,NEW.id);
END
but the problem is with the setting of the project_id variable which sets the gantt_tasks field projectID to NULL because that query cannot retrieve the value using NEW.task_list_id, even if I use that value directly on the insert just to check the value it sets the gantt_tasks field projectID to 0......The strange thing is that if I use other values of the NEW they all work, it's just that field, the insert is successful for all of the other fields on gantt_tasks. I checked and the types are the same, and so the collation as well.
The first two tables are from a project manager called projectPier and the gantt_tasks table is one I created for a gantt chart(DHTMLX gantt chart).

... but the problem is with the setting of the project_id variable which sets the gantt_tasks field projectID to NULL because that query cannot retrieve the value using NEW.task_list_id, even if I use that value directly on the insert just to check the value it sets the gantt_tasks field projectID to 0
Reason is very much visible.
You have a variable project_id whose name matches that of a column in the table.
And when you use column name without a table qualifier, there arises a conflict on the names. And priority will be given to the local variable over column.
In your case, due to the statement
declare project_id int;
the default value of project_id would be zero. And hence, the output of the statement
set project_id=(select project_id from pp088_project_task_lists
where id=NEW.task_list_id);
would be a zero. And hence the same is used in the insert statement.
Options:
Change local variable name to something relevant.
Use table name to qualify the column name.
Sample Example: (using option 1)
Make following changes to your code and it should be working.
delimiter //
CREATE TRIGGER `insert_gantt_task` AFTER INSERT ON `pp088_project_tasks`
FOR EACH ROW BEGIN
declare _project_id int default 0;
declare _duracion int default 0;
select project_id into _project_id
from pp088_project_task_lists
where id = NEW.task_list_id;
select DATEDIFF( NEW.due_date, NEW.start_date ) into _duracion;
insert into gantt_tasks ( text, start_date, duration, projectID, idPier )
values( NEW.text, NEW.start_date, _duracion, _project_id, NEW.id );
END;
//
delimiter ;
Sample Example: (using option 2)
Make following changes to your code and it should be working.
delimiter //
CREATE TRIGGER `insert_gantt_task` AFTER INSERT ON `pp088_project_tasks`
FOR EACH ROW BEGIN
declare project_id int default 0;
declare duracion int default 0;
set project_id := ( select tl.project_id
from pp088_project_task_lists tl
where tl.id = NEW.task_list_id );
set duracion := select DATEDIFF( NEW.due_date, NEW.start_date );
insert into gantt_tasks ( text, start_date, duration, projectID, idPier )
values( NEW.text, NEW.start_date, duracion, project_id, NEW.id );
END;
//
delimiter ;

Mysql Append table to add columns

I like to append a table to add column but without using alert table command
e.g.
This is the table which is missing some columns.
CREATE TABLE IF NOT EXISTS `admin` (
`id` int(11) NOT NULL auto_increment,
`username` varchar(20) NOT NULL,
`passwd` varchar(40) NOT NULL,
`isActive` tinyint(1) NOT NULL default '1',
`lastVisit` datetime NOT NULL default '0000-00-00 00:00:00',
`modifyAt` datetime NOT NULL,
`createdAt` datetime NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
So if i run this query then it should automatically add missing columns into my tables
CREATE TABLE IF NOT EXISTS `admin` (
`id` int(11) NOT NULL auto_increment,
`username` varchar(20) NOT NULL,
`passwd` varchar(40) NOT NULL,
`name` varchar(100) NOT NULL,
`originalUser` tinyint(1) NOT NULL default '0',
`isActive` tinyint(1) NOT NULL default '1',
`lastVisit` datetime NOT NULL default '0000-00-00 00:00:00',
`modifyAt` datetime NOT NULL,
`createdAt` datetime NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
Can this be possible to do without using alert table command ?

I understand your question as you want to add some columns to your table. Please be informed that the term row is usually related to the actual data in your table, not the columns itself. If my assumption is wrong, please clarify your question.
You cannot use CREATE TABLE for altering a table. It is there to create table,
and if it cannot create it, it will in most cases throw an error like you described. Another command exists for that reason: ALTER TABLE.
You might do it something like this.
(1) Create your table with your CREATE TABLE syntax above:
CREATE TABLE IF NOT EXISTS `admin` (
`id` int(11) NOT NULL auto_increment,
`username` varchar(20) NOT NULL,
`passwd` varchar(40) NOT NULL,
`isActive` tinyint(1) NOT NULL default '1',
`lastVisit` datetime NOT NULL default '0000-00-00 00:00:00',
`modifyAt` datetime NOT NULL,
`createdAt` datetime NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
(2) Use ALTER TABLE like this to make the modifications I think you want to have in your second statement (two more columns):
ALTER TABLE
ADD COLUMN `name` varchar(100) NOT NULL AFTER `passwd`,
ADD COLUMN `originalUser` tinyint(1) NOT NULL default '0' AFTER `name`;
Not related to your question, but I'd avoid column names like name, because if you don't escape them properly it'll throw you other errors (see reserved words).

How to merge two tables based on common column and sort the results by date

I have two mysql tables and i want to merge the results of these two tables based on the common column rev_id. The merged results should be sorted by the date of two tables.
Please help me.
CREATE TABLE `reply` (
`id` int(3) NOT NULL auto_increment,
`name` varchar(25) NOT NULL default '',
`member_id` varchar(45) NOT NULL,
`rev_id` int(3) NOT NULL default '0',
`description` text,
`post_date` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
`flag` char(2) NOT NULL default 'N',
PRIMARY KEY (`id`),
KEY `member_id` (`member_id`)
) ENGINE=MyISAM;
CREATE TABLE `comment` (
`com_id` int(8) NOT NULL auto_increment,
`rev_id` int(5) NOT NULL default '0',
`member_id` varchar(50) NOT NULL,
`comm_desc` text NOT NULL,
`date_created` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
PRIMARY KEY (`com_id`),
KEY `member_id` (`member_id`)
) ENGINE=MyISAM;

Try this:
SELECT * FROM reply LEFT JOIN comment ON reply.rev_id = comment.rev_id ORDER BY reply.post_date, comment.date_created