sbroeder commented on code in PR #5271:
URL: https://github.com/apache/calcite/pull/5271#discussion_r4135819926
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core/src/test/java/org/apache/calcite/test/SqlValidatorTest.java:
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@@ -1201,6 +1201,25 @@ void testDyadicCollateOperator() {
});
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-7791";>[CALCITE-7791]
+ * UNNEST of a single-field ROW array loses the field name when aliased</a>.
*/
+ @Test void testUnnestSingleFieldRow() {
+ sql("select d.a\n"
+ + "from unnest(cast(array[row(1)] as row(a integer) array)) as d")
+ .columnType("INTEGER NOT NULL");
+ // The array's real field name ("A") survives star-expansion too, not just
+ // the synthetic alias ("D").
Review Comment:
Ack. Rerworded
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