Kevin Risden created CALCITE-2279:
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Summary: Druid adapter duplicates binary expression
Key: CALCITE-2279
URL: https://issues.apache.org/jira/browse/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}DruidJsonFilter.java:[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
[http://errorprone.info/bugpattern/IdentityBinaryExpression]){quote}
The DruidJsonFilter [2] has left and right hand the exact same.
[1] [http://errorprone.info/]
[2]
[https://github.com/apache/calcite/blob/master/druid/src/main/java/org/apache/calcite/adapter/druid/DruidJsonFilter.java#L323]
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