- Fixed tokenize_select that was not providing level prop for the tokens anymore

git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@257 014f5005-505e-4b48-8d0a-63407b615a7c
2010-10-06 12:31:48 +00:00
parent 25c4c894c2
commit 8224033881
3 changed files with 16 additions and 2 deletions
--- a/relational/optimizations.py
+++ b/relational/optimizations.py
@@ -326,6 +326,17 @@ def tokenize_select(expression):
    except:
        pass
    
+    
+    level=0
+    for i in range(len(l)):
+        l[i]=level_string(l[i])
+        l[i].level=level
+        
+        if l[i]=='(':
+            level+=1
+        elif l[i]==')':
+            level-=1
+    
    return l

 def swap_rename_projection(n):