clintropolis commented on code in PR #14352:
URL: https://github.com/apache/druid/pull/14352#discussion_r1211031009


##########
sql/src/main/java/org/apache/druid/sql/calcite/aggregation/builtin/EarliestLatestBySqlAggregator.java:
##########
@@ -168,12 +168,12 @@ private static class EarliestByLatestBySqlAggFunction 
extends SqlAggFunction
           InferTypes.RETURN_TYPE,
           OperandTypes.or(
               OperandTypes.sequence(
-                  "'" + aggregatorType.name() + "(expr, timeColumn)'\n",
+                  "'" + StringUtils.format("%s_BY", aggregatorType.name()) + 
"(expr, timeColumn)'\n",

Review Comment:
   these have single quotes surrounding them while others do not, is there a 
_right_ way to do this? I know its basically entirely cosmetic on what shows up 
in validation exceptions, but just wondering if there is any sort of standard 
as the javadocs don't seem to call out what the right thing to do is.
   
   Also how do things that are not using `OperandTypes.sequence` present 
themselves?



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