debug

provsql/config/provdb_query.in

-SELECT Students.FirstName, Students.LastName, Courses.Instructor FROM Students INNER JOIN Enrollments ON Students.NetId=Enrollments.NetId INNER JOIN Courses ON Enrollments.CRN=Courses.CRN WHERE (Students.FirstName LIKE 'A%' OR Students.LastName LIKE 'A%') AND (Courses.Instructor LIKE 'A%');
+SELECT DISTINCT S.NetId, S.FirstName, S.LastName FROM   Students S, Enrollments E, Courses C WHERE  S.NetId = E.NetId  AND E.CRN = C.CRN  AND S.Department = 'CS' AND C.Department = 'ECE' AND E.Score <=  All (SELECT E2.Score FROM   Enrollments E2  WHERE  E2.CRN = E.CRN) ORDER BY S.LastName, S.NetId DESC;

provsql/scripts/provdb_output.txt

-SELECT Students.FirstName, Students.LastName, Courses.Instructor FROM Students INNER JOIN Enrollments ON Students.NetId=Enrollments.NetId INNER JOIN Courses ON Enrollments.CRN=Courses.CRN WHERE (Students.FirstName LIKE 'A%' OR Students.LastName LIKE 'A%') AND (Courses.Instructor LIKE 'A%');
+SELECT DISTINCT S.NetId, S.FirstName, S.LastName FROM   Students S, Enrollments E, Courses C WHERE  S.NetId = E.NetId  AND E.CRN = C.CRN  AND S.Department = 'CS' AND C.Department = 'ECE' AND E.Score <=  All (SELECT E2.Score FROM   Enrollments E2  WHERE  E2.CRN = E.CRN) ORDER BY S.LastName, S.NetId DESC;

provsql/src/provenance.py

@@ -158,16 +158,17 @@ def preprocess_query(query, cur, conn):
     tables = tablesInQuery(query)
     output = []
     for table in tables:
+        print(table)
         if table not in tablesWithProvenance:
             cmdAddProvtuple = "select \"add_provtuple\"('{}')".format(table)
             command1 = "select add_provenance('{}');".format(table)
-            command2 = "select create_provenance_mapping('{}_provtuple_mapping','{}','provtuple');".format(table, table)
+            command2 = "select create_provenance_mapping('{}_provtuple_mapping','{}','provtuple');".format(table.lower(), table)
             ut.commitAndExecute(conn, cur, cmdAddProvtuple)
             ut.commitAndExecute(conn, cur, command1)
             ut.commitAndExecute(conn, cur, command2)
             tablesWithProvenance[table] = 1
-        formula = " formula(provenance(), '{}_provtuple_mapping'), ".format(table)
-        index = query.find('select') + 6
+        formula = " formula(provenance(), '{}_provtuple_mapping'), ".format(table.lower())
+        index = query.lower().find('select') + 6
         tmp = query[:index] + formula + query[index:]
         output.append(tmp)
         
@@ -292,4 +293,4 @@ def main():
             print('Database connection closed.')
 
 if __name__ == '__main__':
-    main()
\ No newline at end of file
+    main()

submissions/extract.py

@@ -39,7 +39,7 @@ def extractData(conn, cur):
         filepath = mydir + "/" + f
         fl = open(filepath)
         sql_str = fl.read()
-        sql_str = sql_str.strip().replace("\n", " ")
+        #sql_str = sql_str.strip().replace("\n", " ")
 
         flag = 0
         try:
@@ -59,6 +59,7 @@ def main():
     conn = psycopg2.connect("dbname=provdb user=joker password=m")
     cur = conn.cursor()
     extractData(conn, cur)
+    print(query)
     conn.close()
     for question_id in [1,2,3,4,5,6,7,8]:
         if question_id != 2:
@@ -95,4 +96,4 @@ def main():
 
 if __name__ == "__main__":
     # execute only if run as a script
-    main()
\ No newline at end of file
+    main()