[TYPO3-core] RFC #13935: Bug: t3lib_fullsearch has a lot of hanging SQL record sets

[Christian Kuhn]

This is a SVN patch request.

Type: bugfix

Branches: trunk, 4.3

BT: http://bugs.typo3.org/view.php?id=13935

Problem:
In t3lib_fullsearch there are many positions where SQL queries are 
performed but the SQL result is not removed afterwards. This can lead to 
some memory leaks during the execution.

Solution:
Free SQL results if they are not required any longer.

Thanks
Christian
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