xuzifu666 commented on code in PR #4395:
URL: https://github.com/apache/calcite/pull/4395#discussion_r2101477170
##########
core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java:
##########
@@ -9855,7 +9861,35 @@ private void checkLiteral2(String expression, String
expected) {
String query2 = "SELECT CAST(array[1,2,3] AS real multiset) FROM
\"employee\"";
sql(query2)
.withPhoenix().throws_("Phoenix dialect does not support cast to
MULTISET")
+ .withStarRocks().throws_("StarRocks dialect does not support cast to
MULTISET")
.withHive().throws_("Hive dialect does not support cast to MULTISET");
+
+ String query3 = "SELECT CAST(MAP[1.0,2.0,3.0,4.0] AS MAP<FLOAT, REAL>)
FROM \"employee\"";
+ String expectedStarRocks = "SELECT CAST(MAP { 1.0 : 2.0, 3.0 : 4.0 } AS
MAP< FLOAT, FLOAT >)\n"
+ + "FROM `foodmart`.`employee`";
+ sql(query3)
+ .withStarRocks()
+ .ok(expectedStarRocks);
+
+ String query4 = "SELECT CAST(MAP[1.0,MAP[3.0,4.0]]"
+ + " AS MAP<FLOAT, MAP<REAL, REAL>>)"
+ + " FROM \"employee\"";
+ String expectedStarRocks1 = "SELECT CAST(MAP { 1.0 : MAP { 3.0 : 4.0 } }"
+ + " AS MAP< FLOAT, MAP< FLOAT, FLOAT > >)\n"
+ + "FROM `foodmart`.`employee`";
+ sql(query4)
+ .withStarRocks()
+ .ok(expectedStarRocks1);
+
+ String query5 = "SELECT CAST(\"department_id\" AS float), "
Review Comment:
Had added simple case only involving DOUBLE、REAL、FLOAT types，do you mean
this case？@mihaibudiu
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