--explicit-defaults-for-timestamp

This page is part of MariaDB's Documentation.

The parent of this page is: mariadbd & mysqld for MariaDB Enterprise Server

Topics on this page:

• Overview

• USAGE

• DETAILS

  • SYNONYMS

  • SCHEMA

  • PARAMETERS

  • SKYSQL

  • PRIVILEGES

• EXAMPLES

• ERROR HANDLING

• FEATURE INTERACTION

• RESPONSES

• DIAGNOSIS

• ISO 9075:2016

• CHANGE HISTORY

• RELATED TOPICS

• EXTERNAL REFERENCES

Overview

This is a command-line option for the mariadbd & mysqld commands.

In 11.4 ES:

This option causes CREATE TABLE to create all TIMESTAMP columns as NULL with DEFAULT NULL attribute, Without this option, TIMESTAMP columns are NOT NULL and have implicit DEFAULT clauses. (Defaults to on; use --skip-explicit-defaults-for-timestamp to disable.)

In 10.6 ES, 10.6 CS, 10.5 ES, 10.5 CS, 10.4 ES, 10.4 CS, 10.3 ES, 10.3 CS:

This option causes CREATE TABLE to create all TIMESTAMP columns as NULL with DEFAULT NULL attribute, Without this option, TIMESTAMP columns are NOT NULL and have implicit DEFAULT clauses.

In 10.2 ES, 10.2 CS:

This option causes CREATE TABLE to create all TIMESTAMP columns as NULL with DEFAULT NULL attribute, Without this option, TIMESTAMP columns are NOT NULL and have implicit DEFAULT clauses. The old behavior is deprecated.

See also: mariadbd & mysqld for MariaDB Enterprise Server 11.4, in 10.6 ES, in 10.5 ES, in 10.4 ES, in 10.3 ES, in 10.2 ES, in 10.6 CS, in 10.5 CS, in 10.4 CS, in 10.3 CS, and in 10.2 CS