GSoC/GCI Archive
Google Summer of Code 2013 Apache Software Foundation

#TAJO-34 - Outer Join

by camelia for Apache Software Foundation

Official project description: 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.