[TYPO3-core] RFC: Fix sys_refindex problem when using multiplyDBfieldSize=2

[Dmitry Dulepov]

Martin Kutschker wrote:
> Michael Stucki schrieb:
>> Hi Martin,
>>
>>
>>> Attached is a diff that does this. If a CHAR/VARCHAR becomes a TEXT,
>>> then all occurences in index definitions are changed so that Mysql will
>>> get a correct index prefix for that field.
>>>
>>> With this patch we may remove the '(199)' in the index of sys_refindex.
>>
>>
>> I tested this, and it works as expected. Just one note:
>>
>> | $match = array();
>>
>> I think you can remove this line, $match is set automatically by 
>> preg_match.
> 
> No, preg_match uses the existing array. It will NOT clear it! So always 
> reset your match array when doing a loop.

Plus:
- uninitialized arrays give false warnings in IDEs
- it is much faster to look over the code when all variables are 
initialized prior to use

-- 
Dmitry Dulepov

Web: http://typo3bloke.net/
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