[jira] [Created] (CALCITE-5694) RelJson fails to serialize/deserialize AggregateCall

["Oliver Lee (Jira)" <ji...@apache.org>]

Oliver Lee created CALCITE-5694:
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             Summary: RelJson fails to serialize/deserialize AggregateCall
                 Key: CALCITE-5694
                 URL: https://issues.apache.org/jira/browse/CALCITE-5694
             Project: Calcite
          Issue Type: Bug
            Reporter: Oliver Lee
            Assignee: Oliver Lee


The current output of {{RelJson.toJson(AggregateCall call)}} will fail to serialize back into an {{{}AggregateCall{}}}. 

and throw {{java.lang.UnsupportedOperationException: cannot convert to rex}}

Correct behavior: 
{quote}AggregateCall aggCall; 

Object jsonRepresentation = relJson.toJson(aggCall);
assertThat(jsonRepresentation, notNullValue());

RexNode deserialized = relJson.toRex(b.getCluster(), jsonRepresentation);
assertThat(aggCall, is(deserialized));
assertThat(jsonRepresentation, is(relJson.toJson(deserialized)));
{quote}
 

These 2 assert statements should evaluate to {{{}true{}}}.



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