fixing typo

"\" --> "|"
Removing hard coded paths from testystree.py

This commit removes fids the location of Spark installation dynamically.
It also infers the job name from the query file name.

See #5: http://github.com/meisam/YSmart/issues/issue/5
Translating simple table scans and join

OPEN - task 5: Translate Queries to Spark
See #5: http://github.com/meisam/YSmart/issues/issue/5
Adding one more test case to spark translate

testysmartospark.py is not actually a test suit. It contains script and
utility methods for converting SQL queries to graphs and other visual
forms that are easier to look at and reason about.
Adding one more testcase for joins

OPEN - task 5: Translate Queries to Spark
See #5: http://github.com/meisam/YSmart/issues/issue/5
Code cleanup
Adding the job name to the generated Spark/Scala code
YSmart now translates arbitrary complex expressions in the select list
into Spark/Scala

OPEN - task 5: Translate Queries to Spark
See #5: http://github.com/meisam/YSmart/issues/issue/5
Making sure that the join condition is selected correctly.

OPEN - task 5: Translate Queries to Spark
See #5: http://github.com/meisam/YSmart/issues/issue/5
Stub for translating group by expressions

OPEN - task 5: Translate Queries to Spark
See #5: http://github.com/meisam/YSmart/issues/issue/5
Removing unnecessary local variable
Converting SQL integer and decimal types to Scala Int and Float
OPEN - task 5: Translate Queries to Spark
See #5: http://github.com/meisam/YSmart/issues/issue/5
Cosmetics and code formatting
Proper columns are selected after a join operation.

This commit fixes #13

task 13: Select proper columns after join
See #13: http://github.com/meisam/YSmart/issues/issue/13
Selecting proper columns after join

Fixes #13 See #13: http://github.com/meisam/YSmart/issues/issue/13
Doing selection before projection in table scan.

OPEN - task 13: Select proper columns after join
See #13: http://github.com/meisam/YSmart/issues/issue/13
Typo fix
Avoid filtering RRD when there is now where condition

OPEN - task 13: Select proper columns after join
See #13: http://github.com/meisam/YSmart/issues/issue/13
Cleaning up unnecessary code
Cosmetics: cleaning up imports