somu-imply commented on code in PR #13173:
URL: https://github.com/apache/druid/pull/13173#discussion_r993921972
##########
sql/src/main/java/org/apache/druid/sql/calcite/rel/DruidOuterQueryRel.java:
##########
@@ -116,12 +114,20 @@ public DruidQuery toDruidQuery(final boolean
finalizeAggregations)
@Override
public DruidQuery toDruidQueryForExplaining()
{
+ final RowSignature sourceRowSignature;
+ if (sourceRel instanceof DruidRel) {
+ final DruidQuery subQuery = ((DruidRel)
sourceRel).toDruidQueryForExplaining();
+ sourceRowSignature = subQuery.getOutputRowSignature();
+ } else {
+ // fallback for cases other than group by inner query with order by with
alias on __time column
+ sourceRowSignature = RowSignatures.fromRelDataType(
+ sourceRel.getRowType().getFieldNames(),
+ sourceRel.getRowType()
Review Comment:
Added the test
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