alex-plekhanov commented on code in PR #4458:
URL: https://github.com/apache/calcite/pull/4458#discussion_r2190388941
##########
core/src/test/resources/sql/cast.iq:
##########
@@ -1918,4 +1918,43 @@ EnumerableCalc(expr#0=[{inputs}],
expr#1=[1.11:DECIMAL(3, 2)], expr#2=[2.22:DECI
EnumerableValues(tuples=[[{ 0 }]])
!plan
+# [CALCITE-7062]
+# Common type for nullable date and not nullable timestamp
+SELECT CAST(NULL AS DATE) UNION ALL SELECT TIMESTAMP '2025-07-04 10:00:00';
++---------------------+
+| EXPR$0 |
++---------------------+
+| |
+| 2025-07-04 10:00:00 |
++---------------------+
+(2 rows)
+
+!ok
+
+# [CALCITE-7062]
+# Common type for null and not nullable array;
+SELECT ARRAY[1, 2, 3] UNION ALL SELECT NULL;
Review Comment:
Test added
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