[jira] [Resolved] (HIVE-25659) Metastore direct sql queries with IN/(NOT IN) should be split based on max parameters allowed by SQL DB

[Sankar Hariappan (Jira)]

     [ 
https://issues.apache.org/jira/browse/HIVE-25659?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sankar Hariappan resolved HIVE-25659.
-------------------------------------
    Target Version/s: 4.0.0
          Resolution: Fixed

Merged to master!
Thanks [~gupta.nikhil0007] for the patch! 
Please update the Hive wiki for the new configuration added.

> Metastore direct sql queries with IN/(NOT IN) should be split based on max 
> parameters allowed by SQL DB
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-25659
>                 URL: https://issues.apache.org/jira/browse/HIVE-25659
>             Project: Hive
>          Issue Type: Bug
>          Components: Standalone Metastore
>    Affects Versions: 3.1.0, 4.0.0
>            Reporter: Nikhil Gupta
>            Assignee: Nikhil Gupta
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>          Time Spent: 2h 40m
>  Remaining Estimate: 0h
>
> Function 
> org.apache.hadoop.hive.metastore.txn.TxnUtils#buildQueryWithINClauseStrings 
> can generate queries with huge number of parameters with very small value of 
> DIRECT_SQL_MAX_ELEMENTS_IN_CLAUSE and DIRECT_SQL_MAX_QUERY_LENGTH while 
> generating delete query for completed_compactions table
> Example:
> {code:java}
> DIRECT_SQL_MAX_ELEMENTS_IN_CLAUSE = 100
> DIRECT_SQL_MAX_QUERY_LENGTH = 10 (10 KB)
> Number of parameters in a single query = 4759
> {code}



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