Welcome to the Project Tracking Workspace

This is the website that will keep track of the progress working on implementing Outer Join in TAJO during GSoC2013.

Project at a Glance:

The current Tajo does not support outer join.
The parser part for outer join was already implemented. In this issue, we should improve LogicalPlanner/LogicalOptimizer to deal with outer joins. Then, we should adopt outer join to existing physical join operators like HashJoinExec and MergeJoinExec.

Project Objectives

Implement outer join in TAJO :



Recent List Items

TitleStatusDue Date% Complete
Submit final evaluation 2.) On-Hold September 27, 2013 0% 
Showing 1 items from page Tasks sorted by Status, % Complete. View more »

Rolling Updates

  • Project finished Source code:https://github.com/camelia-c/incubator-tajo/tree/outerjoin_1Documentation:https://sites.google.com/site/gsoc2013tajo34/home/validationhttps://sites.google.com/site/gsoc2013tajo34/queryphysicaloperators
    Posted Sep 18, 2013, 12:18 AM by Camelia C
  • Modified Selection pushdown The outer joins' processing introduces specific constraints regarding selection pushdown in the logical query plan tree and I implemented these constraints into the Logical Optimizer.
    Posted Jul 28, 2013, 5:11 PM by Camelia C
Showing posts 1 - 2 of 9. View more »

Recent Files

  • LogicalOptimizer (backup).java   33k - Aug 22, 2013, 2:00 PM by Camelia C (v1)
  • OuterJoinUtil (backup).java   3k - Aug 22, 2013, 2:00 PM by Camelia C (v1)
  • QueryAnalyzer (backup).java   51k - Aug 22, 2013, 2:00 PM by Camelia C (v1)
  • REWRITE_OUTER_TO_INNER_JOIN_TESTS.pdf   344k - Jul 17, 2013, 4:45 PM by Camelia C (v1)
  • TestData.pdf   246k - Jun 29, 2013, 4:43 AM by Camelia C (v1)
Showing 5 files from page Release 1.0.