[jira] [Created] (CALCITE-3722) Add Hook#PLAN_BEFORE_IMPLEMENTATION to capture the plan after optimization

[Vladimir Sitnikov (Jira)]

Vladimir Sitnikov created CALCITE-3722:
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             Summary: Add Hook#PLAN_BEFORE_IMPLEMENTATION to capture the plan 
after optimization
                 Key: CALCITE-3722
                 URL: https://issues.apache.org/jira/browse/CALCITE-3722
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.21.0
            Reporter: Vladimir Sitnikov
            Assignee: Vladimir Sitnikov


This helps to validate the execution plan, especially when sql-to-rel is 
implemented with a custom factory as in CalciteAssert#withRel.




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