- improved an optimization, to produce a simpler select condition under certain circumstances

git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@343 014f5005-505e-4b48-8d0a-63407b615a7c
2011-11-07 19:01:33 +00:00
parent cd85b7e1c1
commit 3978259f4a
4 changed files with 21 additions and 1 deletions
--- a/1
+++ b/1
@@ -1,6 +1,7 @@
 1.2
 - Better tokenizer, gives more indicative errors
 - Parser gives more indicative errors
+- Improved select_union_intersect_subtract optimization to avoid parenthesis whenever possible

 1.1
 - Incorrect relational operations now raise an exception instead of returning None