Log Message:
Updating databases/p5-SQL-Statement from 1.30 to 1.31

Upstream changes:
Version 1.31, released August 16th, 2010
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[Bug fixes]
* Fix misbehaviour of DELETE/UPDATE for tables with only basic capabilities
  and no matching where clause (reported by H.Merijn Brand and Drew ...)
* Fix some column identifier splits to respect quoted tables

[Improvements]
* Optimized some core routines between 25% and 50%.