Calcite. Expression 'I' is not being grouped.

statement ok
CREATE TABLE integers(i INTEGER)

statement ok
INSERT INTO integers VALUES (1), (2), (3), (NULL)

query T
SELECT EXISTS(SELECT i+MIN(i1.i) FROM integers WHERE i=3) FROM integers i1;
----
true

org.apache.calcite.runtime.CalciteContextException: At line 1, column 22: Expression 'I' is not being grouped

	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:506)
	at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:917)
	at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:902)

/subquery/exists/test_correlated_exists.test