Revision history for SQL::Abstract
+ - Fixed open outer parens for a multi-line literal
+ - Allow nested column-functions in WHERE
+
+revision 1.61 2010-02-05 16:28 (UTC)
+----------------------------
+ - Allow INSERT to take additional attributes
+ - Support for INSERT ... RETURNING
+ - Another iteration of SQL::Abstract::Test fixes and improvements
+
+revision 1.60 2009-09-22 11:03 (UTC)
+----------------------------
+ - fix a well masked error in the sql-test tokenizer
+
+revision 1.59 2009-09-22 08:39 (UTC)
+----------------------------
+ - fixed a couple of untrapped undefined warnings
+ - allow -in/-between to accept literal sql in all logical
+ variants - see POD for details
+ - unroll multiple parenthesis around IN arguments to accomodate
+ crappy databases
+
+revision 1.58 2009-09-04 15:20 (UTC)
+----------------------------
+ - expanded the scope of -bool and -not_bool operators
+ - added proper testing support
+
+revision 1.57 2009-09-03 20:18 (UTC)
+----------------------------
+ - added -bool and -not_bool operators
+
+revision 1.56 2009-05-30 16:31 (UTC)
+----------------------------
+ - support for \[$sql, @bind] in order_by clauses e.g.:
+ { -desc => \['colA LIKE ?', 'somestring'] }
+
+revision 1.55 2009-05-17 22:54 (UTC)
+----------------------------
+ - make sure that sql generation does not mutate the supplied
+ where condition structure
+
+revision 1.54 2009-05-07 17:23 (UTC)
+----------------------------
+ - allow special_operators to take both code refs and method names
+ (makes it possible to properly subclass the builtin ones)
+
revision 1.53 2009-04-30 14:58 (UTC)
----------------------------
- make sure hash keys are sorted in all search sub-conditions