[jira] [Created] (LENS-141) Exclude join condition as filter in inner fact query

["Sushil Mohanty (JIRA)" <ji...@apache.org>]

Sushil Mohanty created LENS-141:
-----------------------------------

             Summary: Exclude join condition as filter in inner fact query
                 Key: LENS-141
                 URL: https://issues.apache.org/jira/browse/LENS-141
             Project: Apache Lens
          Issue Type: Bug
          Components: driver-jdbc
    Affects Versions: 2.0
            Reporter: Sushil Mohanty
            Assignee: Sushil Mohanty


Currently join conditions are getting added as filters in fact subquery. This need to be fixed by excluding them while building query. 
{CODE}
Input Query : 
SELECT (dim1 . date) dim1_date , sum((f . msr1)) msr1 , (dim2 . name) dim2_name  
         FROM fact f  INNER JOIN dim1 dim1 ON f.dim1_id = dim1.id  and f.m2 = '1234' 
         INNER JOIN dim2 dim2 ON f.dim2_id = dim2.id  and f.dim3_id = dim2.id 
         WHERE ((dim1 . date) = '2014-11-25 00:00:00')  and f.m4  is not null 
         GROUP BY (dim1 . date),  (dim2 . name) ORDER BY dim1_date;
{CODE}

{CODE}
Current Rewritten Query :
SELECT (dim1___dim1 . date) dim1_date , sum(sum_fact___f_msr1) msr1 , (dim2___dim2 . name) dim2_name
FROM
  (SELECT fact___f.dim2_id,
          fact___f.dim1_id,
          fact___f.dim3_id,
          fact___f.m4,
          fact___f.m2,
          sum((fact___f . msr1)) AS sum_fact___f_msr1
   FROM fact fact___f
   WHERE (fact___f . m4) IS NOT NULL
     AND ((fact___f . m2) = '1234')
     AND ((fact___f . dim3_id) = (dim2___dim2 . id))
     AND fact___f.dim1_id IN
       (SELECT dim1 .id
        FROM dim1
        WHERE ((dim1. date) = '2014-11-25 00:00:00'))
     AND fact___f.dim2_id IN
       (SELECT dim2 .id
        FROM dim2
        WHERE ((fact___f . dim3_id) = (dim2___dim2 . id)))
     AND fact___f.dim3_id IN
       (SELECT dim2 .id
        FROM dim2
        WHERE ((fact___f . dim3_id) = (dim2___dim2 . id)))
   GROUP BY fact___f.dim2_id,
            fact___f.dim1_id,
            fact___f.dim3_id,
            fact___f.m4,
            fact___f.m2) fact___f
INNER JOIN dim1 dim1___dim1 ON (((fact___f . dim1_id) = (dim1___dim1 . id))
                                AND ((fact___f . m2) = '1234'))
INNER JOIN dim2 dim2___dim2 ON (((fact___f . dim2_id) = (dim2___dim2 . id))
                                AND ((fact___f . dim3_id) = (dim2___dim2 . id)))
WHERE (((dim1___dim1 . date) = '2014-11-25 00:00:00')
       AND (fact___f . m4) IS NOT NULL)
GROUP BY (dim1___dim1 . date), (dim2___dim2 . name)
ORDER BY dim1_date ASC
{CODE}



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