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[jira] [Created] (CALCITE-2279) Druid adapter duplicates binary expression

Kevin Risden created CALCITE-2279:

             Summary: Druid adapter duplicates binary expression
                 Key: CALCITE-2279
             Project: Calcite
          Issue Type: Bug
          Components: druid
            Reporter: Kevin Risden
            Assignee: Julian Hyde
             Fix For: 1.17.0

I was looking into Error Prone [1] checking for Calcite and it found what looks like a bug in Druid Adapter. The output is as follows
{quote}[324,9] [IdentityBinaryExpression] A binary expression where both operands are the same is usually incorrect; the value of this expression is equivalent to `lhs.getType().getFamily() == SqlTypeFamily.NUMERIC`.
[ERROR]     (see []){quote}
The DruidJsonFilter [2] has left and right hand the exact same.
[1] []
[2] []

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