MySQL Error Code 1118 Row size too large 8126 Changing some columns to TEXT or BLOB

Question

I want to create a table of 325 column   CREATE TABLE NAMESCHEMA NAMETABLE             ROW ID TEXT NOT NULL            this is the primary key  324 column of these types        CHAR 1          DATE         DECIMAL 10 0          DECIMAL 10 7          TEXT         LONG     ROW FORMAT COMPRESSED    I replaced all the VARCHAR with the TEXT and i have added Barracuda in the my ini file of MySQL  this is the attributes added   innodb file per table 1 innodb file format Barracuda innodb file format check   ON   but i still have this error   Error Code  1118  Row size too large   gt  8126   Changing some columns to TEXT or BLOB may help  In current row format  BLOB prefix of 0 bytes is stored inline    EDIT  I can t change the structure of the database because it s legacy application system database  The create of a new table  it s an export of the legacy database   EDIT2  i wrote this question that is similar to others but inside there are some solution that i found on internet like VARCHAR and Barracuda  but i still have that problem so i decided to open a new question with already the classic answer inside for seeing if someone have other answers

User · Answer

if you are using the MySQLWorkbench you have the option to change the to change the query_alloc_block_size= 16258 and save it.

Step 1. click on the options file at the left side.

Step 2: click on General and select the checkBox of query_alloc_block_size and increase their size. for example change 8129 --> 16258

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I was using XAMPP on Windows 10 and had this issue using PHPMyAdmin     when I added  innodb log file size   500M and innodb log buffer size   800M to my my ini file  MySQL would not start    So I tried deleting ib logfile0 and ib logfile1 located in  C  xampp mysql data  and this did not help at all   luckily I could re-install  I needed to upgrade XAMPP anyway   The simple solution in my case was to set innodb strict mode 0 in the my ini file   After this I was able to create the table      STEPS          Close XAMPP completely    Edit the my ini file  located in C  xampp mysql data  add innodb strict mode 0 in the InnoDB section    Start XAMPP and import the table again       N B complete these steps as ADMIN

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I just want to provide some other people with help with a more serious variant of this problem  In some situations  the error   Row size too large    Changing some columns to TEXT or BLOB   will occur even with  alter table drop column  and  alter table modify column  statements   Consequently you can become completely stuck  not able to change a varchar to a text  or drop columns  trying to solve the problem ironically results in the same message    If you have this problem  the solution is to alter or drop multiple columns at once  You can do this in MySQL with the syntax  alter table example drop column a  drop column b  drop column c  and if you drop enough columns at once  it will actually execute rather than raising the error

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innodb log file size 512M  innodb strict mode 0   These two lines worked for me  in the mysql configuration

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I struggled with the same error code recently  due to a change in MySQL Server 5 6 20  I was able to solve the problem by changing the innodb log file size in the my ini text file  In the release notes  it is explained that an innodb log file size that is too small will trigger a  quot Row size too large error  quot  http   dev mysql com doc relnotes mysql 5 6 en news-5-6-20 html

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Have similar issue this morning and following way saved my life    Did you try to turn off the innodb strict mode   SET GLOBAL innodb strict mode   0    and then try to import it again   innodb strict mode is ON using MySQL    5 7 7  before it was OFF

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What fixed mine was to add  SET GLOBAL innodb file format Barracuda  SET GLOBAL innodb file per table ON    At the beginning of my   sql  file  as it is said in  https   gist github com tonykwon 8910261

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sql mode    innodb strict mode 0 brew services stop mariadb brew services start mariadb

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I was having same issue  I search  innodb strict mode  in my ini but couldn t found   I then added the same  it will still show you the warning  but you can continue  just add  innodb strict mode   0

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Switch the table format InnoDB to MyISAM           for change table format           run this query          ALTER TABLE table name ENGINE   MyISAM        replace table name with actual table name

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Tried many things but found solution by added below line in my ini and restarting mysql service  innodb strict mode   0

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I tried all the solutions here   but only this parameter  innodb strict mode               0   solved my day     From the manual      The innodb strict mode setting affects the handling of syntax errors   for CREATE TABLE  ALTER TABLE and CREATE INDEX statements    innodb strict mode also enables a record size check  so that an INSERT   or UPDATE never fails due to the record being too large for the   selected page size

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On my case it was casing from  Limits on Table Column Count and Row Size  and doing changes described in this answer saved my day     Add the following to the my cnf file under  mysqld  section   innodb file per table  innodb file format   Barracuda ALTER the table to use ROW FORMAT COMPRESSED      ALTER TABLE table name     ENGINE InnoDB     ROW FORMAT COMPRESSED     KEY BLOCK SIZE 8      https   stackoverflow com a 15585700 2195130

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The key parameter is  innodb page size     Support for 32k and 64k page sizes was added in MySQL 5 7  For both 32k and 64k page sizes  the maximum row length is approximately 16000 bytes    The trick is that this parameter can be only changed during the INITIALIZATION of the mysql service instance  so it does not have any affect if you change this parameter after the instance is already initialized  the very first run of the instance       innodb page size can only be configured prior to initializing the MySQL instance and cannot be changed afterward  If no value is specified  the instance is initialized using the default page size  See Section 14 6 1     InnoDB Startup Configuration       So if you do not change this value in my ini before initialization  the default value will be 16K  which will have row size limit of  8K  Thats why the error comes up    If you increase the innodb page size  the innodb log buffer size must be also increased  Set it at least to 16M  Also if the ROW FORMAT is set to COMPRESSED you cannot increase innodb page size to 32k  or 64K  It should be DYNAMIC  default in 5 7       ROW FORMAT COMPRESSED is not supported when innodb page size is set to 32KB or 64KB  For innodb page size 32k  extent size is 2MB  For innodb page size 64k  extent size is 4MB  innodb log buffer size should be set to at least 16M  the default  when using 32k or 64k page sizes    Furthermore the innodb buffer pool size should be increased from 128M to 512M at least  otherwise you will get an error on initialization of the instance  I do not have the exact error    After this  the row size error gone    The problem with this is that you have to create a new MySql instance  and migrate data to your new DataBase instance  from old one   Parameters that I changed and works  after creating a new instance and initialized with the my ini that is first modified with these settings    innodb page size 64k innodb log buffer size 32M innodb buffer pool size 512M   All the settings and descriptions in which I found the solution can be found here   https   dev mysql com doc refman 5 7 en innodb-parameters html  Hope this helps   Regards

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Changing into MyISAM is not the solution  For innodb following worked for me   set followings on my cnf  innodb strict mode 0

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The following worked for me  nothing else -      SET GLOBAL innodb log buffer size   80 1024 1024 1024    and     SET GLOBAL innodb strict mode   0    Hope this helps someone because it wasted couple of days of my time as I was trying to do this in my cnf with no joy

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I experienced the same issue on an import of a data dump  Temporarily disabling the innodb strict mode solved my problem  -- shows the acutal value of the variable SHOW VARIABLES WHERE variable name    innodb strict mode    -- change the value  ON OFF  SET GLOBAL innodb strict mode ON

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MySQL is pretty clear about its maximum row size         Every table  regardless of storage engine  has a maximum row size of   65 535 bytes  Storage engines may place additional constraints on this   limit  reducing the effective maximum row size              Individual storage engines might impose additional restrictions that   limit table column count  Examples       InnoDB permits up to 1000 columns       InnoDB restricts row size to something less than half a database page    approximately 8000 bytes   not including VARBINARY  VARCHAR  BLOB  or   TEXT columns       Different InnoDB storage formats  COMPRESSED  REDUNDANT  use different   amounts of page header and trailer data  which affects the amount of   storage available for rows    If you have 325 repeating sets of columns  you are exceeding several of the restrictions   This is also a suspicious data format   You should have 325 rows for each row in the table you want  one for each group of columns

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For MariaDB users  version    10 2 2  and MySQL  version    5 7   the simple solution is   ALTER TABLE  table  ROW FORMAT DYNAMIC

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I had the issue when importing SQL-dumps  from MySQL 8  to MariaDB on MacOS  with Brew   Start by editing your my cnf  If you use Brew  it s usually store at  usr local etc   pico  usr local etc my cnf  Add this to the config   mysqld  innodb log file size   1024M innodb strict mode   0  Then restart MariaDB  brew services restart mariadb  Please notice that this in a workaround and not a fix since turning of strict mode in not fixing the problem  but since it s my local environment and not a production environment i m ok with that

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FIX FOR MYSQL IN DOCKER I m using  fefe s excellent answer here to show how to fix this problem within some minutes when using docker  via docker-compose   It s quite easy as you don t have to touch MySQL s configuration files  but it requires you to export and import your entire data  The default situation of your MySQL setup probably looks like this  Your data is saved inside the data-mysql volume  mysql    image  mysql 5 7 25   container name  mysql   restart  always   volumes      - data-mysql  var lib mysql   environment      -  quot MYSQL DATABASE XXX quot      -  quot MYSQL USER XXX quot      -  quot MYSQL PASSWORD XXX quot      -  quot MYSQL ROOT PASSWORD XXX quot    expose      - 3306   Make a backup of your entire data database via SQL export  so you have a  sql gz or something  I m using Adminer for this   To fix  and as explained in  fefe s answer  we have to setup the MySQL instance from zero  meaning we have to delete the mysql docker container and the mysql volume docker container  Do a docker container ls and a  docker volume ls to see all your containers and volumes  and pick the two names that are your mysql instance and your mysql volume  for me it s mysql  container  and docker data-mysql  volume    Stop your running instances via docker-compose down  or however you usually stop your docker stuff    To delete them  I do docker container rm mysql and docker volume rm docker data-mysql  note that there is an underscore AND a dash in the name    Add these settings to your mysql block in your docker setup    mysql    image  mysql 5 7 25   command    --innodb page size 64k    --innodb log buffer size 32M    --innodb buffer pool size 512M     container name  mysql           Restart your instances  the mysql and mysql volume should be build automatically  now with the new settings   Import your database dump file  maybe with    gzip -dc  lt  database sql gz   docker exec -i mysql mysql -uroot -pYOURPASSWORD  Voila  Worked very fine for me

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ERROR 1118  42000  at line 1852      Row size too large   gt  8126   Changing some columns to TEXT or       BLOB may help  In current row format  BLOB prefix of 0 bytes is stored inline       mysqld   innodb log file size   512M  innodb strict mode   0   ubuntu 16 04 edit path   sudo nano  etc mysql mysql conf d mysqld cnf   on MS Windows the path will be something like   C  ProgramData MySQL MySQL Server 5 7 my ini   Don t forget to retart the service  or restart your machine

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I recently created a table with 82 columns and had the same error with InnoDB  To bypass the problem we switched the table format to MyISAM as it was just used for a basic form

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None of the answers to date mention the effect of the innodb page size parameter   Possibly because changing this parameter was not a supported operation prior to MySQL 5 7 6   From the documentation      The maximum row length  except for variable-length columns  VARBINARY  VARCHAR  BLOB and TEXT   is slightly less than half of a database page for 4KB  8KB  16KB  and 32KB page sizes  For example  the maximum row length for the default innodb page size of 16KB is about 8000 bytes  For an InnoDB page size of 64KB  the maximum row length is about 16000 bytes  LONGBLOB and LONGTEXT columns must be less than 4GB  and the total row length  including BLOB and TEXT columns  must be less than 4GB    Note that increasing the page size is not without its drawbacks   Again from the documentation      As of MySQL 5 7 6  32KB and 64KB page sizes are supported but ROW FORMAT COMPRESSED is still unsupported for page sizes greater than 16KB  For both 32KB and 64KB page sizes  the maximum record size is 16KB  For innodb page size 32k  extent size is 2MB  For innodb page size 64k  extent size is 4MB    A MySQL instance using a particular InnoDB page size cannot use data files or log files from an instance that uses a different page size  This limitation could affect restore or downgrade operations using data from MySQL 5 6  which does support page sizes other than 16KB

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I have changed the length of value from varchar 255  to varchar 25  to all varchar columns and i get the solution

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For MySQL 5 7 on Mac OS X El Capitan   OS X provides example configuration files at  usr local mysql support-files my-default cnf  To add variables  first stop the server and just copy above file to   usr local mysql etc my cnf  cmd   sudo cp  usr local mysql support-files my-default cnf  usr local mysql etc my cnf   NOTE  create  etc  folder under  mysql  in case it doesn t exists   cmd   sudo mkdir  usr local mysql etc   Once the my cnf is created under etc  it s time to set variable inside that   cmd  sudo nano my cnf   set variables below  mysqld    mysqld  innodb log file size   512M innodb strict mode   0   now start a server

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I also encountered that  Changing  innodb log file size   innodb log buffer size  and the other settings in  my ini  file did not solve my problem  I pass it by changing my column types  text  to varchar 20  and not using varchar values bigger than 20   Maybe you can decrease the size of columns  too  if it possible  text--- varchar 20  varchar 256  --   varchar 20

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If you re getting this error on Google Cloud SQL  mysql 5 7 for example  then it s probably not at this time going to be a simple fix as not all InnoDB flags are supported   If you re coming across from Mysql 5 5 as I was  for an old Wordpress setup  this could mean you need to wrangle some column types in the source database before you export   Some more information can be found here

[mysql] MySQL: Error Code: 1118 Row size too large (> 8126). Changing some columns to TEXT or BLOB

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