asolimando commented on code in PR #3264:
URL: https://github.com/apache/calcite/pull/3264#discussion_r1229997303
##########
core/src/test/java/org/apache/calcite/test/RelMetadataTest.java:
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@@ -273,6 +273,104 @@ final RelMetadataFixture sql(String sql) {
/ (DEPT_SIZE + EMP_SIZE)));
}
+ // ----------------------------------------------------------------------
+ // Tests for getForeignKeys
+ // ----------------------------------------------------------------------
+
+ @Test void testForeignKeysAggregateCallEmpty() {
+ sql("select hiredate, sum(sal) from emp group by hiredate")
+ .assertForeignKeysAreEmpty();
+ }
+
+ @Test void testForeignKeysAggregateKeyEmpty() {
+ sql("select hiredate, sum(sal) from emp group by hiredate")
+ .assertForeignKeysAreEmpty();
+ }
+
+ @Test void testForeignKeysAggregateKey() {
+ sql("select count(sal), deptno from emp group by deptno")
+ .assertForeignKeys(equalTo(bitSetOf(1)));
+ }
+
+ @Test void testForeignKeysTableOnly() {
+ sql("select deptno, ename from emp")
+ .assertForeignKeys(equalTo(bitSetOf(0)));
+ }
+
+ @Test void testForeignKeysTableOnlyEmpty() {
+ sql("select ename, job from emp")
+ .assertForeignKeysAreEmpty();
+ }
+
+ @Test void testForeignKeysExpressionEmpty() {
+ sql("select deptno + 1, ename from emp")
+ .assertForeignKeysAreEmpty();
+ }
+
+ @Test void testForeignKeysFilter() {
+ sql("select deptno, ename from emp where ename = 'lucy'")
+ .assertForeignKeys(equalTo(bitSetOf(0)));
+ }
+
+ @Test void testForeignKeysInnerJoinLeft() {
+ sql("select emp.deptno, dept.name, emp.deptno from emp, dept")
+ .assertForeignKeys(equalTo(bitSetOf(0, 2)));
+ }
+
+ @Test void testForeignKeysInnerJoinRight() {
+ sql("select dept.name, emp.deptno, emp.deptno from dept, emp")
+ .assertForeignKeys(equalTo(bitSetOf(1, 2)));
+ }
+
+ @Test void testForeignKeysJoinLeftOuter() {
Review Comment:
```suggestion
@Test void testForeignKeysLeftOuterJoin() {
```
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