TYPO3 Core

The compare database wizard does not detect if fields to not have the NOT NULL clause anymore (if they had such a clause previously).

MariaDB [dummy]> SHOW FIELDS FROM sys_file_processedfile;
+-------------------+--------------+------+-----+---------+----------------+
| Field             | Type         | Null | Key | Default | Extra          |
+-------------------+--------------+------+-----+---------+----------------+
| uid               | int(11)      | NO   | PRI | NULL    | auto_increment |
| pid               | int(11)      | NO   | MUL | 0       |                |
| tstamp            | int(11)      | NO   |     | 0       |                |
| crdate            | int(11)      | NO   |     | 0       |                |
| cruser_id         | int(11)      | NO   |     | 0       |                |
| deleted           | tinyint(4)   | NO   |     | 0       |                |
| storage           | int(11)      | NO   | MUL | 0       |                |
| original          | int(11)      | NO   | MUL | 0       |                |
| identifier        | varchar(512) | YES  |     |         |                |
| name              | tinytext     | YES  |     | NULL    |                |
| configuration     | text         | YES  |     | NULL    |                |
| context           | varchar(200) | NO   |     |         |                |
| checksum          | varchar(255) | NO   |     |         |                |
| is_processed      | varchar(200) | NO   |     |         |                |
| extension         | varchar(255) | NO   |     |         |                |
| mime_type         | varchar(255) | NO   |     |         |                |
| sha1              | tinytext     | YES  |     | NULL    |                |
| size              | int(11)      | NO   |     | 0       |                |
| width             | int(11)      | NO   |     | 0       |                |
| height            | int(11)      | NO   |     | 0       |                |
| originalfilesha1  | char(40)     | YES  |     |         |                |
| task_type         | varchar(200) | NO   |     |         |                |
| configurationsha1 | char(40)     | YES  |     |         |                |
+-------------------+--------------+------+-----+---------+----------------+

Notice the NO for NULL for the fields width and height. The corresponding SQL file (from core sysext):

CREATE TABLE sys_file_processedfile (
    uid int(11) NOT NULL auto_increment,
    tstamp int(11) DEFAULT '0' NOT NULL,
    crdate int(11) DEFAULT '0' NOT NULL,

    storage int(11) DEFAULT '0' NOT NULL,
    original int(11) DEFAULT '0' NOT NULL,
    identifier varchar(512) DEFAULT '' NOT NULL,
    name tinytext,
    configuration text,
    configurationsha1 char(40) DEFAULT '' NOT NULL,
    originalfilesha1 char(40) DEFAULT '' NOT NULL,
    task_type varchar(200) DEFAULT '' NOT NULL,
    checksum varchar(255) DEFAULT '' NOT NULL,
    width int(11) DEFAULT '0',
    height int(11) DEFAULT '0',

    PRIMARY KEY (uid),
    KEY combined_1 (original,task_type,configurationsha1),
    KEY identifier (storage,identifier(199))
);

Notice that it does not have a NOT NULL for the width and height fields.

The database compare does not detect this.