diff --git a/relational/sql.py b/relational/sql.py
deleted file mode 100644
index 63d9822..0000000
--- a/relational/sql.py
+++ /dev/null
@@ -1,191 +0,0 @@
-# -*- coding: utf-8 -*-
-# Relational
-# Copyright (C) 2009  Salvo "LtWorf" Tomaselli
-# 
-# Relation is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-# 
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-# 
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# 
-# author Salvo "LtWorf" Tomaselli <tiposchi@tiscali.it>
-
-'''This module converts SQL queries into relational algebra expressions'''
-
-def stub():
-    "NATURAL JOIN"
-    "CROSS JOIN" ,
-def extract_select(query,internal=''):
-    
-
-    #Handling select *
-    if len(query)==1 and query[0]=='*':
-        return ''
-    #Create dictionary for projection and rename        .
-    #Keys are fields to project. Value is none if no rename is needed
-    pr_dic={}
-    key=None
-    for i in query:
-        if i.lower() ==',':
-            key=None
-        elif key==None:
-            pr_dic[i]=None
-            key=i
-        else:
-            pr_dic[key]=i
-    
-    #Preparing string for projection and rename
-    ren=''
-    proj=''
-    for i in pr_dic.iterkeys():
-        proj+=',%s'%i
-        if pr_dic[i]!=None:
-            ren+=',%s➡%s'%(i,pr_dic[i])
-    #Removes starting commas
-    ren=ren[1:]
-    proj=proj[1:]
-    
-    result='π %s (%s)' % (proj,internal)
-    if len(ren)!=0:
-        result='ρ %s (%s)' % (ren,result)
-    return result
-def extract_from(query):
-    return query
-
-def sql2relational(query):
-    query=query.replace('\n',' ').replace(',',' , ')
-
-    tokens=[]
-    
-    t=query.split(' ')
-    escape=False
-    for i in range(len(t)):
-        tok=t[i].lower().strip()
-        if tok=='from' and not escape:
-            break
-            
-        if tok in ('select','as',','):
-            escape=True
-        else:
-            escape=False
-    
-    return extract_select(t[1:i])
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-class table(object):
-    def __init__(self):
-        self.attr=[]
-        self.realname=None
-        pass
-    
-
-
-
-
-sqlops=('SELECT','FROM','WHERE',',',';')
-
-import optimizations
-
-
-if __name__=="__main__":
-    
-    query="SELECT * FROM a AS b,a WHERE a.id!= b.id and a.age<12 or b.sucation==4 or d=3;"
-            
-    query=query.replace(',',' , ').replace(';',' ; ')
-    print query
-    parts=query.split(' ')
-    tokens=[]
-    
-    temp=''
-    lastop=None
-    for i in parts:
-        if i in sqlops:
-            # TODO must tokenize (blabla(bla)) as a single token
-            if lastop == 'WHERE': #Where is a special case, must tokenize all the stuff
-                for j in optimizations.tokenize_select(temp):
-                    tokens.append(j.strip())
-            else:
-                tokens.append(temp.strip())
-            tokens.append(i.strip())
-            temp=''
-            lastop=i
-        else:
-            temp+=i+' '
-    
-    tokens=tokens[1:]   #Removes futile 1st empty element
-    print tokens
-    
-    
-    
-    rels={}
-    
-    from_=[]
-    where_=[]
-    select_=[]
-    
-    
-    for i in tokens:
-        if i in ('SELECT','FROM','WHERE'):
-            last=i
-            continue
-        
-        
-        if last=='FROM':
-            if ' AS ' in i:
-                parts=i.split(' AS ')
-                rels[parts[1].strip()]=table()
-                rels[parts[1].strip()].realname=parts[0].strip()
-                from_.append(parts[1].strip())
-                pass
-            else:
-                if i!=',':
-                    rels[i.strip()]=table()
-                from_.append(i.strip())
-                pass
-                
-        elif last=='WHERE':
-            where_.append(i)
-            if i in optimizations.sel_op:
-                continue
-            if '.' in i:
-                parts=i.split('.',1)
-                if parts[1] not in rels[parts[0]].attr:
-                    rels[parts[0]].attr.append(parts[1])
-        elif last=='SELECT':
-            # TODO should do like the same of WHERE but supporting AS too
-            pass
-    
-    
-    
-    for i in rels.keys():
-        print "========" + i + "========"
-        print rels[i].attr
-        print rels[i].realname
-    
-    print from_
-    for i in from_:
-        if i in rels.keys():
-            print i
-    
-    #print sql2relational('SELECT a,c AS q FROM from;')
\ No newline at end of file