Variable ColumnInfo.defaultNull

Is the COLUMN_DEFAULT column (in the information schema's COLUMNS table) NULL?


					
			struct ColumnInfo
			

			
				{
				

			
			  // ...
			

			  bool defaultNull
			;
			

			  // ...
			

			}

What this means:

On MariaDB 10.2.7 and up: - Does the column have a default value?

On MySQL and MariaDB 10.2.6 and below: - This can be true if the column doesn't have a default value OR if NULL is the column's default value.

See also