DBAL-84: Long string fields are being silently changed to 255 characters in the schema

[doctrinebot]

Jira issue originally created by user extesy:

I have an entity like this:

 * @orm:Entity
 */
class Product
{
    /****
     * @orm:Id
     * @orm:Column(name="Merchant",type="string",length=50)
     */
    protected $merchant;

    /****
     * @orm:Column(name="Name",type="string",length=500)
     */
    protected $name;
}```

When I change the length of $name field to 4000 it updates the schema like it is supposed to:

`php.exe -f console doctrine:schema:update --dump-sql`
`ALTER TABLE product CHANGE Name Name VARCHAR(4000) NOT NULL`

But when I change the length to 5000 it just silently without any warning uses value 255 instead:

`php.exe -f console doctrine:schema:update --dump-sql`
{{ALTER TABLE product CHANGE Name Name VARCHAR({color:red}255{color}) NOT NULL}}

I had to look into actual table definition using mysql browser to find this issue because doctrine doesn't even warn about it. This could lead to some pretty serious bugs!

[doctrinebot]

Comment created by @beberlei:

Fixed in master and 2.0.x

[doctrinebot]

Issue was closed with resolution "Fixed"

[github-actions]

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