[jira] [Work logged] (HIVE-27180) Remove JsonSerde from hcatalog, Upgrade should update changed FQN for JsonSerDe in HMS DB

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-27180?focusedWorklogId=853196&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-853196 ]

ASF GitHub Bot logged work on HIVE-27180:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/Mar/23 15:50
            Start Date: 27/Mar/23 15:50
    Worklog Time Spent: 10m 
      Work Description: rtrivedi12 opened a new pull request, #4159:
URL: https://github.com/apache/hive/pull/4159

   …nged FQN for JsonSerDe in HMS DB
   
   HIVE-18545 makes Hcatalog JsonSerde use the "hive.serde2" version as a back end, there are no feature differences between these implementations. This change will fix tests to use the new JsonSerDe class and remove JsonSerDe from hive-contrib. Hive Upgrade schema script should automatically update the hive table schema to rename the serde package.
   
   ### What changes were proposed in this pull request?
   1. Fixed tests to use new SerDe class 'org.apache.hadoop.hive.serde2.JsonSerDe'
   2. Removed JsonSerDe from hive-hcatalog.
   3. Schema upgrade scripts update the SLIB column value in SERDES table to update it from "org.apache.hive.hcatalog.data.JsonSerDe" to "org.apache.hadoop.hive.serde2.JsonSerDe"
   
   
   ### Why are the changes needed?
   Removing redundant code to make JsonSerde as first class serde in hive
   Better user experience after the upgrade (Avoids CNF)
   
   
   ### Does this PR introduce _any_ user-facing change?
    'No'
   
   
   ### How was this patch tested?
   mvn test -Dtest=TestMiniLlapLocalCliDriver -Dqfile=json_serde1.q,json_serde_qualified_types.q,json_serde_tsformat.q,parquet_mixed_partition_formats2.q,temp_table_parquet_mixed_partition_formats2.q
   




Issue Time Tracking
-------------------

            Worklog Id:     (was: 853196)
    Remaining Estimate: 0h
            Time Spent: 10m

> Remove JsonSerde from hcatalog, Upgrade should update changed FQN for JsonSerDe in HMS DB 
> ------------------------------------------------------------------------------------------
>
>                 Key: HIVE-27180
>                 URL: https://issues.apache.org/jira/browse/HIVE-27180
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Hive
>            Reporter: Riju Trivedi
>            Assignee: Riju Trivedi
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> As Hcatalog JsonSerDe uses the "serde2" version as a back end, Remove o{*}rg.apache.hive.hcatalog.data.JsonSerDe{*} from hive-hcatalog. Fix tests to use the new Serde class org.apache.hadoop.hive.serde2.JsonSerDe. Hive Upgrade schema script can update the SERDES table to alter the class name to the new class name, the old tables would work automatically.



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