mihaibudiu commented on code in PR #5118:
URL: https://github.com/apache/calcite/pull/5118#discussion_r3661666320
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core/src/main/java/org/apache/calcite/runtime/SqlFunctions.java:
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@@ -209,36 +208,28 @@ public class SqlFunctions {
private static final Function1<List<Object>, Enumerable<Object>>
LIST_AS_ENUMERABLE =
a0 -> a0 == null ? Linq4j.emptyEnumerable() : Linq4j.asEnumerable(a0);
+ /** Like {@link #LIST_AS_ENUMERABLE}, for a collection whose struct elements
+ * are kept whole: each element is converted from the collection's internal
+ * list representation to an Object[] struct value. */
+ @SuppressWarnings({"rawtypes", "unchecked"})
+ private static final Function1<List<Object>, Enumerable<Object>>
STRUCT_LIST_AS_ENUMERABLE =
+ a0 -> a0 == null ? Linq4j.emptyEnumerable()
+ : Linq4j.asEnumerable(a0).select(e -> (Object) ((List) e).toArray());
Review Comment:
An attempt to fix this bug has revealed some independent problems in
RelToLixTranslator, which need to be fixed fix. I will file a separate issue
and mark this as draft until the other one is fixed.
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