xiedeyantu commented on code in PR #4406:
URL: https://github.com/apache/calcite/pull/4406#discussion_r2128232099
##########
core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java:
##########
@@ -9796,6 +9796,83 @@ private void checkLiteral2(String expression, String
expected) {
.withTrino().ok(expected);
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-7048";>[CALCITE-7048]
+ * The specified type conversion does not support complex types in
Presto</a>. */
+ @Test void testPrestoFloatingPointNestedTypesCast() {
+
+ String query1 = "SELECT CAST(MAP[MAP[3.0,4.0],1.0]"
+ + " AS MAP<MAP<FLOAT, FLOAT>, FLOAT>)"
+ + " FROM \"employee\"";
+ String expectedPresto1 = "SELECT CAST(MAP (ARRAY[MAP (ARRAY[3.0],
ARRAY[4.0])], ARRAY[1.0])"
Review Comment:
I think `1.0` should not be an `Array`.
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