[jira] [Closed] (FLINK-27386) throw NPE if multi MAPJOIN hint union all

["Jark Wu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-27386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jark Wu closed FLINK-27386.
---------------------------
    Resolution: Fixed

Fixed in master: 24ac1215883a5121e2f714277c56eaa8152c7e9b

> throw NPE if multi MAPJOIN hint union all
> -----------------------------------------
>
>                 Key: FLINK-27386
>                 URL: https://issues.apache.org/jira/browse/FLINK-27386
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Connectors / Hive
>    Affects Versions: 1.13.1, 1.15.0
>            Reporter: tartarus
>            Assignee: luoyuxia
>            Priority: Critical
>              Labels: pull-request-available, stale-assigned
>             Fix For: 1.16.0
>
>
> We can reproduce through a UT
> Add test case in HiveDialectITCase
> {code:java}
> @Test
> public void testHiveMultiMapJoinUnionAll() {
>     tableEnv.executeSql("create table t1 (id bigint, name string)");
>     tableEnv.executeSql("create table t2 (id bigint, name string)");
>     tableEnv.executeSql("select /*+ mapjoin(t2) */ t1.id from t1 join t2 on t1.id = t2.id union all select /*+ mapjoin(t2) */ t1.id from t1 join t2 on t1.name = t2.name");
> } {code}



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