How to set a field to null when creating a table?

Question

1C-Bitrix

Hello.
When installing the module, a table is created in the database, but I just can’t understand and find information where it would be said how to set the NULL value for a certain field
joxi.ru/D2PYEYaHpNEBEA

Answer 1

The MysqlCommonConnection::createTable() method is responsible for creating a table in MySQL , where, regardless of the situation, it is included - NOT NULL