Mysql Error Number 1071

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Specified Key Was Too Long Max Key Length Is 1000 Bytes Mysql

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Mysql Innodb Increase Max Key Length

million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up #1071 - Specified key was too long; max key length is 1000 bytes up vote 25 down vote favorite 13 I know questions with this title have been answered before, but please do read on. I've read thoroughly

Mysql Max Key Length

all the other questions/answers on this error before posting. I am getting the above error for the following query: CREATE TABLE IF NOT EXISTS `pds_core_menu_items` ( `menu_id` varchar(32) NOT NULL, `parent_menu_id` int(32) unsigned DEFAULT NULL, `menu_name` varchar(255) DEFAULT NULL, `menu_link` varchar(255) DEFAULT NULL, `plugin` varchar(255) DEFAULT NULL, `menu_type` int(1) DEFAULT NULL, `extend` varchar(255) DEFAULT NULL, `new_window` int(1) DEFAULT NULL, `rank` int(100) DEFAULT NULL, `hide` int(1) DEFAULT NULL, `template_id` int(32) unsigned DEFAULT NULL, `alias` varchar(255) DEFAULT NULL, `layout` varchar(255) DEFAULT NULL, PRIMARY KEY (`menu_id`), KEY `index` (`parent_menu_id`,`menu_link`,`plugin`,`alias`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; Does anyone have idea why and how to fix it? The catch is - this same query works perfectly on my local machine, and worked as well on my previous host. Btw.it's from a mature project - phpdevshell - so I'd guess these guys know what they are doing, although you never know. Any clue appreciated. I'm using phpMyAdmin. mysql phpmyadmin mysqldump share|improve this question asked Jan 5 '12 at 16:42 CodeVirtuo

18:54 Reporter: Bent Vangli Email Updates: Status: Not a Bug Impact on me: None Category:MySQL Server: MyISAM storage engine Severity:S2 error 1709 (hy000): index column size too large. the maximum column size is 767 bytes. (Serious) Version:4.1.7 OS:Linux (Linux (Fedora Core 2)) Assigned to: Matt Lord View

Django.db.utils.operationalerror: (1071, 'specified Key Was Too Long; Max Key Length Is 767 Bytes')

Add Comment Files Developer Edit Submission View Progress Log Contributions [13 Nov 2004 12:28] Bent Vangli Description: When mysql max key length is 3072 bytes I try to execute the following SQL statement: CREATE TABLE phpgw_lang ( lang varchar(5) NOT NULL DEFAULT '', app_name varchar(100) NOT NULL DEFAULT 'common', message_id varchar(255) NOT NULL DEFAULT '', http://stackoverflow.com/questions/8746207/1071-specified-key-was-too-long-max-key-length-is-1000-bytes content text, PRIMARY KEY(lang,app_name,message_id) ); I got MySQL Error: 1071, Specified key was too long; max key length is 1000 bytes When I shorten message_id to varchar(228) it works. varchar(229) doesn't. I am using UTF8 as default charset on my MySQL engine. I cannot see anything wrong with above statement. However, I probarly got this error because multibyte preferable https://bugs.mysql.com/bug.php?id=6604 UTF8 character set uses much more bytes than the number of characters. Looking at the numbers, you find (5 + 100 + 228) * 3 = 999, which is less than 1000. and contrary (5 + 100 + 229) * 3 = 1002. I looks like MySQL are using a factor of 3, maybe hardcoded? But in normal western languages this is normally much less than 3 times, maybe more like 1.2 - 1.5. I Had put this on Serious Severity because it disables the possibility to install eGroupWare from http://www.egroupware.org/ using MySQL 4.1.x. With very best regards Bent Vangli PS! I do compile and install from source. If guided to sourcefiles involved, I may do some testing. How to repeat: Run above statement on a MySQL 4.1.7 with UTF8 as default charset on a Fedora Core 2 (Linux kernel 2.6). Proberly also on other OS using UTF8. Suggested fix: Suggestion 1: Add a runtime or compiler variable/setting allowing to increase this 1000 bytes limit, or suggestion 2: Count characters only, and eventually discards bytes after 1

log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About http://dba.stackexchange.com/questions/11393/mysql-error-1071-specified-key-was-too-long-max-key-length-is-1000-bytes-whil Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is https://answers.launchpad.net/maria/+question/241612 a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how max key it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top MySql - ERROR 1071 Specified key was too long; max key length is 1000 bytes while restoring dump up vote 4 down vote favorite while trying to restore a MySql Dump, i get the following error: ERROR 1071 (42000) at line 25: Specified key was too long; max key length max key length is 1000 bytes any ideas? mysql mysqldump share|improve this question edited Jan 23 '12 at 16:41 RolandoMySQLDBA 108k15139276 asked Jan 23 '12 at 15:54 Ran 58351223 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote accepted You may to have adjust some VARCHAR length in some table based on the Character Set you are using. That exact error message is actually posted as a bug report from Nov 2004, when in fact, it is not really a bug. That should direct you on how to adjust key lengths, especially your PRIMARY KEYs. If you know which table is causing the Error 1071, you have to do the following: Step 01) mysqldump only database schema mysqldump --routines --triggers --all-databases --no-data > MySQLSchema.sql Step 02) mysqldump only data mysqldump --all-databases --no-create-info > MySQLData.sql Step 03) Using vi or some other editor, edit the table's PRIMARY KEY to manually limit the PRIMARY KEY in such a way that the key does not exceed 1000 characters. Step 04) Load the schema mysql -A < MySQLSchema.sql Step 05) Load the data mysql -A < MySQLData.sql You may have to resort to this if you cannot otherwise figur

VARCHAR(700) DEFAULT NULL, PRIMARY KEY (`id_client`) ) ENGINE=INNODB DEFAULT CHARSET=utf8 ALTER TABLE `clients` ADD INDEX `fullname` (`fullname`(700)); Warning Code : 1071 Specified key was too long; max key length is 767 bytes If I cannot do it with database setting can I fill bug report? MariaDB 10.0.7 Question information Language: English Edit question Status: Answered For: Maria Edit question Assignee: No assignee Edit question Last query: 2014-01-03 Last reply: 2014-01-03 Related bugs Link existing bug Related FAQ: None Link to a FAQ Axel Schwenke (ahel) said on 2014-01-03: #1 This is not a bug, but a (rather well known) limitation in MySQL/MariaDB. From the manual at http://dev.mysql.com/doc/refman/5.6/en/create-table.html "For CHAR, VARCHAR, BINARY, and VARBINARY columns, indexes can be created that use only the leading part of column values, using col_name(length) syntax to specify an index prefix length. ... Prefixes can be up to 1000 bytes long (767 bytes for InnoDB tables). Note that prefix limits are measured in bytes, whereas the prefix length in CREATE TABLE statements is interpreted as number of characters ..." A utf8 character can use up to 3 bytes. Hence you cannot index columns or prefixes of columns longer than 333 (MyISAM) or 255 (InnoDB) utf8 characters. Side note: 700 characters is a lot, about the size of this answer. You probably could reduce the row length from 700 to i.e. 255? NT Man (mikhail-v-gavrilov) said on 2014-01-03: #2 Ok, I found this value of length for utf-8 experimentally. But what I must do if I really needed much longer varchar fields??? Can I fill feature request for MariaDB? Elena Stepanova (elenst) said on 2014-01-03: #3 It has been implemented already in InnoDB 5.6 and merged into MariaDB 10.0. The variable is called innodb_large_prefix, and it works with newer InnoDB file formats and row formats: MariaDB [test]> set global innodb_large_prefix=on; Query OK, 0 rows affected (0.01 sec) MariaDB [test]> set global innodb_file_format=on; ERROR 1231 (42000): Variable 'innodb_file_format' can't be set to the value of 'ON' MariaDB [test]> set global innodb_large_prefix=on; Query OK, 0 rows affected (0.00 sec) MariaDB [test]> set global innodb_file_format=Barracuda; Query OK, 0 rows affected (0.00 sec) MariaDB [t