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 ...
I have 3 tables:
CREATE TABLE `channels` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`status` enum('active','inactive') NOT NULL DEFAULT 'active’,
`description` text DEFAULT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
) ENGINE=InnoDB AUTO_INCREMENT=485 DEFAULT CHARSET=utf8;
CREATE TABLE `categories` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`name` varchar(255) NOT NULL,
`content` text DEFAULT NULL,
`description` text DEFAULT NULL,
`status` enum('active','inactive') NOT NULL DEFAULT 'active',
`created_at` timestamp NOT NULL DEFAULT current_timestamp(),
`updated_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
) ENGINE=InnoDB AUTO_INCREMENT=128 DEFAULT CHARSET=utf8;
CREATE TABLE `events` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`name` varchar(255) NOT NULL,
`content` text DEFAULT NULL,
`timezone` varchar(255) DEFAULT NULL,
`recurring` tinyint(1) NOT NULL DEFAULT 0,
`all_day` tinyint(1) NOT NULL DEFAULT 0,
`starts_at` timestamp NULL DEFAULT NULL,
`ends_at` timestamp NULL DEFAULT NULL,
`started_at` timestamp NULL DEFAULT NULL,
`completed_at` timestamp NULL DEFAULT NULL,
`status` enum('active','inactive','in_progress','complete') DEFAULT 'active',
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
) ENGINE=InnoDB AUTO_INCREMENT=82 DEFAULT CHARSET=utf8;
I want to alter the events table to add more fields and add foreign keys to channel, event_type and client_event_type.
I've tried this:
alter table `events`
add `channel` int unsigned not null,
add `event_type` int unsigned not null,
add `client_event_type` int unsigned not null,
add constraint `events_channel_foreign` foreign key `channel` references `channels`(`id`),
add constraint `events_event_type_foreign` foreign key `event_type` references `categories`(`id`),
add constraint `events_clientEventType_foreign` foreign key `client_event_type` references `categories`(`id`),
It comes up with :
You have an error in your SQL syntax; check the manual that
corresponds to your MariaDB server version for the right syntax to use
near 'references channels(id), add constraint
events_event_type_foreign foreig' at line 5
What am I doing wrong?
Thanks
You're missing parantheses:
alter table `events`
add `channel` int unsigned not null,
add `event_type` int unsigned not null,
add `client_event_type` int unsigned not null,
add constraint `events_channel_foreign` foreign key (`channel`) references `channels`(`id`),
add constraint `events_event_type_foreign` foreign key (`event_type`) references `categories`(`id`),
add constraint `events_clientEventType_foreign` foreign key (`client_event_type`) references `categories`(`id`)
I have spent the past week mulling over this single MySQL document with no luck as to figuring out what/where the error is that's stopping it from properly installing it's self so I can have the chat system it's for up and running. I would go to the developer but he's essentially been unresponsive for over a year now so I have given up on help from him. The error I am getting upon trying to install it is the following :
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server >version for the right syntax to use near '(14) NOT NULL, userid int(11) default NULL, >banneduserid int(11) default NULL, r' at line 1
The MySQL file reads as follows :
#--------------------------------------------------------------------------
# Table structure for table `bans`
#--------------------------------------------------------------------------
CREATE TABLE `bans` (
`created` timestamp(14) NOT NULL,
`userid` int(11) default NULL,
`banneduserid` int(11) default NULL,
`roomid` int(11) default NULL,
`ip` varchar(16) default NULL,
KEY `userid` (`userid`),
KEY `created` (`created`)
) ENGINE=MyISAM;
#--------------------------------------------------------------------------
# Table structure for table `connections`
#--------------------------------------------------------------------------
CREATE TABLE `connections` (
`id` varchar(32) NOT NULL default '',
`updated` timestamp(14) NOT NULL,
`created` timestamp(14) NOT NULL,
`userid` int(11) default NULL,
`roomid` int(11) default NULL,
`state` tinyint(4) NOT NULL default '1',
`color` int(11) default NULL,
`start` int(11) default NULL,
`lang` char(2) default NULL,
`ip` varchar(16) default NULL,
`tzoffset` int(11) default '0',
`chatid` int(11) NOT NULL default '1',
PRIMARY KEY (`id`),
KEY `userid` (`userid`),
KEY `roomid` (`roomid`),
KEY `updated` (`updated`)
) ENGINE=MyISAM;
#--------------------------------------------------------------------------
# Table structure for table `ignors`
#--------------------------------------------------------------------------
CREATE TABLE `ignors` (
`created` timestamp(14) NOT NULL,
`userid` int(11) default NULL,
`ignoreduserid` int(11) default NULL,
KEY `userid` (`userid`),
KEY `ignoreduserid` (`ignoreduserid`),
KEY `created` (`created`)
) ENGINE=MyISAM;
#--------------------------------------------------------------------------
# Table structure for table `messages`
#--------------------------------------------------------------------------
CREATE TABLE `messages` (
`id` int(11) NOT NULL auto_increment,
`created` timestamp(14) NOT NULL,
`toconnid` varchar(32) default NULL,
`touserid` int(11) default NULL,
`toroomid` int(11) default NULL,
`command` varchar(255) NOT NULL default '',
`userid` int(11) default NULL,
`roomid` int(11) default NULL,
`txt` text,
PRIMARY KEY (`id`),
KEY `touserid` (`touserid`),
KEY `toroomid` (`toroomid`),
KEY `toconnid` (`toconnid`),
KEY `created` (`created`)
) ENGINE=MyISAM AUTO_INCREMENT=14 ;
#--------------------------------------------------------------------------
# Table structure for table `rooms`
#--------------------------------------------------------------------------
CREATE TABLE `rooms` (
`id` int(11) NOT NULL auto_increment,
`updated` timestamp(14) NOT NULL,
`created` timestamp(14) NOT NULL,
`name` varchar(64) NOT NULL default '',
`password` varchar(32) NOT NULL default '',
`ispublic` char(1) default NULL,
`ispermanent` int(11) default NULL,
PRIMARY KEY (`id`),
KEY `name` (`name`),
KEY `ispublic` (`ispublic`),
KEY `ispermanent` (`ispermanent`),
KEY `updated` (`updated`)
) ENGINE=MyISAM AUTO_INCREMENT=5 ;
#--------------------------------------------------------------------------
# Table structure for table `users`
#--------------------------------------------------------------------------
CREATE TABLE `users` (
`id` int(11) NOT NULL auto_increment,
`login` varchar(32) NOT NULL default '',
`password` varchar(32) NOT NULL default '',
`roles` int(11) NOT NULL default '0',
`profile` text,
PRIMARY KEY (`id`),
KEY `login` (`login`)
) ENGINE=MyISAM AUTO_INCREMENT=2 ;
My guess is that there is an older call/request that is out dated and no longer used for the version of MySQL I have installed on my host ( Version : 5.5.19 ). I really appreciate any help I can get with this so I can finally stop running off of a flat file ( the other install option this thing has ) and integrate it into my CMS. Thank you for your time!
-Reiz
Remove the (14) from all your timestamp types like that
... column_name timestamp NOT NULL ...
In MySQL versions after 4.1 the timestamp datatype has no properties added in brackets.
MySQL Docu 4.1
MySQL Docu 5.1
So in your case just drop the (14) after all appearances of timestamp in the sql. So, e.g., change this
`created` timestamp(14) NOT NULL,
to this
`created` timestamp NOT NULL,