xy2953396112 commented on a change in pull request #2092:
URL: https://github.com/apache/calcite/pull/2092#discussion_r464051650
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File path: core/src/test/java/org/apache/calcite/test/SqlToRelConverterTest.java
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@@ -1121,7 +1121,58 @@ public final Sql sql(String sql) {
sql("select * from dept, lateral table(ramp(dept.deptno))").ok();
}
- @Test void testCollectionTableWithLateral2() {
+ @Test public void testTableFunctionInSelect() {
+ sql("select table_func(dept.deptno) as (f0, f1) from dept")
+ .conformance(SqlConformance.HIVE)
+ .ok();
+ }
+
+ @Test public void testTableFunctionInSelectWithUnion() {
+ sql("select * from ("
+ + "select a.deptno, table_func(a.deptno) as (f0, f1)"
Review comment:
There is a few limitations in Hive[1].Other expressions are not allowed
in SELECT.
`No other expressions are allowed in SELECT
SELECT pageid, explode(adid_list) AS myCol... is not supported`
[1]
[https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-explode(array)](https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-explode(array))
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