[jira] [Created] (CALCITE-2454) Fix bug in HepPlanner which occurred when two RelNodes have identical digest but different row-type

Tue, 07 Aug 2018 20:40:05 -0700 

Yuzhao Chen created CALCITE-2454:
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             Summary: Fix bug in HepPlanner which occurred when two RelNodes 
have identical digest but different row-type
                 Key: CALCITE-2454
                 URL: https://issues.apache.org/jira/browse/CALCITE-2454
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.17.0
            Reporter: Yuzhao Chen
            Assignee: Julian Hyde
             Fix For: 1.18.0


After CALCITE-2116, a RelNode will be reused based on digest, but now many 
nodes's digests do not have type info, e.g. LogicalProject, this will affect 
some rules when we wann transform to a node with same digest but not same type 
(or node).

So, we should add type info just like VolcanoPlanner.



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