julianhyde commented on a change in pull request #1606: [CALCITE-3466] Do not
drop the "group by" clause of subquery in a select statement with "group by"
clause in JDBC adapter.
URL: https://github.com/apache/calcite/pull/1606#discussion_r366036818
##########
File path:
core/src/main/java/org/apache/calcite/rel/rel2sql/SqlImplementor.java
##########
@@ -1337,6 +1345,16 @@ public Clause maxClause() {
return maxClause;
}
+ /** return whether {@code Clause.GROUP_BY} is contained in {@code clauses}
*/
+ private boolean withGroupBy() {
+ for (Clause clause : clauses) {
+ if (clause == Clause.GROUP_BY) {
Review comment:
I agree. `clauses.contains(Clause.GROUP_BY)` does the same job.
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