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https://issues.apache.org/jira/browse/FLINK-33233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17808563#comment-17808563
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yunfan commented on FLINK-33233:
--------------------------------
[~luoyuxia] [~mapohl] Hello. I have submitted the PR which back port to
release-1.18 and release-1.17
> Null point exception when non-native udf used in join condition
> ---------------------------------------------------------------
>
> Key: FLINK-33233
> URL: https://issues.apache.org/jira/browse/FLINK-33233
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Hive
> Affects Versions: 1.17.0
> Reporter: yunfan
> Assignee: yunfan
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.19.0
>
>
> Any non-native udf used in hive-parser join condition.
> It will caused NullPointException.
> It can reproduced by follow code by adding this test to
> {code:java}
> org.apache.flink.connectors.hive.HiveDialectQueryITCase{code}
>
> {code:java}
> // Add follow code to org.apache.flink.connectors.hive.HiveDialectQueryITCase
> @Test
> public void testUdfInJoinCondition() throws Exception {
> List<Row> result = CollectionUtil.iteratorToList(tableEnv.executeSql(
> "select foo.y, bar.I from bar join foo on hiveudf(foo.x) = bar.I
> where bar.I > 1").collect());
> assertThat(result.toString())
> .isEqualTo("[+I[2, 2]]");
> } {code}
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