LONGTEXT

USAGE

DETAILS

SYNONYMS

The following are synonyms for LONGTEXT:

  • CLOB

  • JSON

SCHEMA

PARAMETERS

SKYSQL

PRIVILEGES

EXAMPLES

LONGTEXT

Example of LONGTEXT:

CREATE TABLE longtext_example (
   description VARCHAR(20),
   example LONGTEXT
) DEFAULT CHARSET=latin1; -- One byte per char makes the examples clearer

Note that the maximum size of a LONGTEXT is so large that it cannot be sent to the server without breaking the value up into chunks (something that the command-line client cannot do). For values larger than 16M you can increase the max_allowed_packet size up to a maximum of 1024M to increase the allowed size of non-chunked values.

INSERT INTO longtext_example VALUES
   ('Normal foo', 'foo'),
   ('Trailing spaces foo', 'foo      '),
   ('NULLed', NULL),
   ('Empty', ''),
   ('Maximum', RPAD('', 4294967295, 'x'));
ERROR 1301 (HY000): Result of rpad() was larger than max_allowed_packet (16777216) - truncated

Data Too Long

When SQL_MODE is strict (the default) a value is considered "too long" when its length exceeds the size of the data type, and an error is generated.

Example of data too long behavior for LONGTEXT:

TRUNCATE longtext_example;

INSERT INTO longtext_example VALUES
   ('Overflow', RPAD('', 4294967296, 'x'));
ERROR 1301 (HY000): Result of rpad() was larger than max_allowed_packet (16777216) - truncated

ERROR HANDLING

FEATURE INTERACTION

RESPONSES

DIAGNOSIS

ISO 9075:2016

CHANGE HISTORY

Release Series

History

11.4 Enterprise

  • Not present.

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

10.6 Community

  • Present starting in MariaDB Community Server 10.6.0.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.5 Community

  • Present starting in MariaDB Community Server 10.5.0.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

10.4 Community

  • Present starting in MariaDB Community Server 10.4.0.

10.3 Enterprise

  • Present starting in MariaDB Enterprise Server 10.3.16-1.

10.3 Community

  • Present starting in MariaDB Community Server 10.3.0.

10.2 Enterprise

  • Present starting in MariaDB Enterprise Server 10.2.25-1.

10.2 Community

  • Present starting in MariaDB Community Server 10.2.0.

Release Series

History

11.4 Enterprise

  • Not present.

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

EXTERNAL REFERENCES