[jira] [Created] (TAJO-1713) Change the type of edge cache in JoinGraphContext from HashMap to LRUMap

[Jihoon Son (JIRA)]

Jihoon Son created TAJO-1713:
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             Summary: Change the type of edge cache in JoinGraphContext from 
HashMap to LRUMap
                 Key: TAJO-1713
                 URL: https://issues.apache.org/jira/browse/TAJO-1713
             Project: Tajo
          Issue Type: Task
          Components: Planner/Optimizer
            Reporter: Jihoon Son
             Fix For: 0.11.0


Since the current implementation using HashMap involves the potential OOM with 
a lot of join tables. We should prevent it.



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