private void evalCanonicalizedExpressionForCSC(CompiledSortCriterion csc,
      ExecutionContext context, StringBuilder buffer)
      throws TypeMismatchException, NameResolutionException {
    csc.getExpr().generateCanonicalizedExpression(buffer, context);
  }
Transforms the group by clause into distinct order by clause, if possible
geode-core/src/main/java/org/apache/geode/cache/query/internal/CompiledSelect.java