xiangqiao created FLINK-24862:
---------------------------------
Summary: The user-defined hive udaf/udtf cannot be used normally
in hive dialect
Key: FLINK-24862
URL: https://issues.apache.org/jira/browse/FLINK-24862
Project: Flink
Issue Type: Bug
Components: Connectors / Hive
Affects Versions: 1.14.0, 1.13.0
Reporter: xiangqiao
Attachments: image-2021-11-10-20-55-11-988.png
Here are two questions：
1.First question, I added a unit test in HiveDialectITCase to reproduce this
question:
{code:java}
@Test
public void testTemporaryFunctionUDAF() throws Exception {
// create temp function
tableEnv.executeSql(
String.format(
"create temporary function temp_count as '%s'",
GenericUDAFCount.class.getName()));
String[] functions = tableEnv.listUserDefinedFunctions();
assertArrayEquals(new String[] {"temp_count"}, functions);
// call the function
tableEnv.executeSql("create table src(x int)");
tableEnv.executeSql("insert into src values (1),(-1)").await();
assertEquals(
"[+I[2]]",
queryResult(tableEnv.sqlQuery("select temp_count(x) from
src")).toString());
// switch DB and the temp function can still be used
tableEnv.executeSql("create database db1");
tableEnv.useDatabase("db1");
assertEquals(
"[+I[2]]",
queryResult(tableEnv.sqlQuery("select temp_count(x) from
`default`.src"))
.toString());
// drop the function
tableEnv.executeSql("drop temporary function temp_count");
functions = tableEnv.listUserDefinedFunctions();
assertEquals(0, functions.length);
tableEnv.executeSql("drop temporary function if exists foo");
} {code}
!image-2021-11-10-20-55-11-988.png!
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