Mysql Error 1071
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18:54 Reporter: Bent Vangli Email Updates: Status: Not a Bug Impact on me: None Category:MySQL Server: MyISAM storage engine specified key was too long max key length is 1000 bytes mysql Severity:S2 (Serious) Version:4.1.7 OS:Linux (Linux (Fedora Core 2)) Assigned to: Matt
Specified Key Was Too Long; Max Key Length Is 767 Bytes Mysql
Lord View Add Comment Files Developer Edit Submission View Progress Log Contributions [13 Nov 2004 12:28] Bent Vangli mysql innodb_large_prefix Description: When 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) mysql innodb increase max key length NOT NULL DEFAULT '', 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
Mysql Max Key Length
this error because multibyte preferable 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 s
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Mysql Max Key Length Is 3072 Bytes
Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it https://bugs.mysql.com/bug.php?id=6604 only takes a minute: Sign up mysql ERROR 1071 (Specified key was too long; max key length is 1000 bytes) in simple dump-import setting up vote 0 down vote favorite dump mysql db on server 1 $ mysql --version mysql Ver 14.14 Distrib 5.1.54, for debian-linux-gnu (x86_64) using readline 6.2 $ mysqldump -u root -p db > db.sql import on http://stackoverflow.com/questions/10873870/mysql-error-1071-specified-key-was-too-long-max-key-length-is-1000-bytes-in-s server 2 $ mysql --version mysql Ver 14.12 Distrib 5.0.95, for unknown-linux-gnu (x86_64) using readline 5.1 $ mysql -u root -p db < db.sql ERROR 1071 (42000) at line 807: Specified key was too long; max key length is 1000 bytes I know there is a lot of questions and answers on this error but it still leaves me puzzled. Can it be a version problem? I suspect no. If I run it with --force option, it gets even wierder: ERROR 1071 (42000) at line 807: Specified key was too long; max key length is 1000 bytes ERROR 1146 (42S02) at line 847: Table 'db.users' doesn't exist ERROR 1146 (42S02) at line 848: Table 'db.users' doesn't exist ERROR 1146 (42S02) at line 849: Table 'db.users' doesn't exist ERROR 1146 (42S02) at line 850: Table 'db.users' doesn't exist what is going on? I mean apart from solving this, I would like to understand what settings affect a simple dump-import act and why can those settings not be explicit in my dump file and be set t import. I pref
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and http://stackoverflow.com/questions/10642429/error-1071-specified-key-was-too-long-max-key-length-is-1000-bytes-mysql policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes max key a minute: Sign up Error: #1071 - Specified key was too long; max key length is 1000 bytes - mysql 5.0.91 up vote 1 down vote favorite I am using mysql 5.0.91 and I need to save URLs ( some are small and some are very long ). I want to use varchar(2000) but I get an error: #1071 - Specified max key length key was too long; max key length is 1000 bytes What is the best way to save URLs on my hosting with mysql 5.0.91 ? mysql mysql-error-1071 share|improve this question edited May 17 '12 at 19:47 Wesley Murch 67.2k24128178 asked May 17 '12 at 19:40 Antonio Santos 2123 1 TEXT and its variants are best suited for that. –PhD May 17 '12 at 19:42 See if any of these are useful (always research your error message): stackoverflow.com/… or stackoverflow.com/questions/tagged/mysql-error-1071 –Wesley Murch May 17 '12 at 19:48 3 You're kind of asking two separate questions. Best way to store URL: stackoverflow.com/a/219664/398242 Reason for your error and how to fix it: stackoverflow.com/questions/1814532/… –Wesley Murch May 17 '12 at 19:57 add a comment| 2 Answers 2 active oldest votes up vote 5 down vote Do you use unique=True on your urls column? MySQL is building a unique index on that column, and the number of bytes that it uses per character varies depending on the encoding. If it is UTF-16, for example, it will use 2 bytes per character, so y