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Posted to commits@hudi.apache.org by "voon (Jira)" <ji...@apache.org> on 2024/07/05 10:18:00 UTC
[jira] [Assigned] (HUDI-7955) Account for Hive3 and Hive2 getPrimitiveJavaObject discrepancy for WritableTimestampObjectInspector
[ https://issues.apache.org/jira/browse/HUDI-7955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
voon reassigned HUDI-7955:
--------------------------
Assignee: voon
> Account for Hive3 and Hive2 getPrimitiveJavaObject discrepancy for WritableTimestampObjectInspector
> ----------------------------------------------------------------------------------------------------
>
> Key: HUDI-7955
> URL: https://issues.apache.org/jira/browse/HUDI-7955
> Project: Apache Hudi
> Issue Type: Bug
> Reporter: voon
> Assignee: voon
> Priority: Major
> Attachments: image-2024-07-05-18-11-33-420.png, image-2024-07-05-18-13-28-135.png
>
>
> The invocation of *getPrimitiveJavaObject* returns a different implementation of timestamp in Hive3 and Hive2.
> - Hive2: *java.sql.Timestamp*
> - Hive3: *org.apache.hadoop.hive.common.type.Timestamp*
> Hudi common is compiled with Hive2, but Trino is using Hive3, causing the discrepancy between compile and runtime. When execution flow falls into this section of the code where the trigger conditions are listed below:
> 1. MOR table is used
> 2. User is querying the _rt table
> 3. User's table has a *TIMESTAMP* type and query requires it
> 4. Merge is required as record is present in both Parquet and Log file
> Error below will be thrown:
> {code:java}
> java.lang.NoSuchMethodError: 'java.sql.Timestamp org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableTimestampObjectInspector.getPrimitiveJavaObject(java.lang.Object)'{code}
> h1.
> Hive3
> !image-2024-07-05-18-11-33-420.png|width=509,height=572!
> h1. Hive2
> !image-2024-07-05-18-13-28-135.png|width=507,height=501!
>
> h1. Solution:
> Hive shimming should be applied to obtaining *getPrimitiveJavaObject* too.
>
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