[jira] [Comment Edited] (HIVE-23318) TxnHandler need not delete from MATERIALIZATION_REBUILD_LOCKS on need basis

["Denys Kuzmenko (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-23318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17096309#comment-17096309 ] 

Denys Kuzmenko edited comment on HIVE-23318 at 4/30/20, 8:39 AM:
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I think it would be a cleaner solution if we could introduce new TxnType for materialized views and set it in OpenTxnRequest when opening new transaction. 
At the commit step we are already loading & locking transaction record, that has TxnType attribute.


was (Author: dkuzmenko):
I think it would be a cleaner solution if we could introduce new TxnType for materialized views and set it in OpenTxnRequest when opening new transaction.

> TxnHandler need not delete from MATERIALIZATION_REBUILD_LOCKS on need basis
> ---------------------------------------------------------------------------
>
>                 Key: HIVE-23318
>                 URL: https://issues.apache.org/jira/browse/HIVE-23318
>             Project: Hive
>          Issue Type: Improvement
>          Components: Hive, Materialized views
>            Reporter: Rajesh Balamohan
>            Priority: Minor
>
> Observed the following queries when materialized view or any of its feature was not used. 
> TxnHandler need not clear this part of txn commit. It would help in reducing the sql parsing time in server side as well.
> {noformat}
>   G....delete from MATERIALIZATION_REBUILD_LOCKS where mrl_txn_id = 120398082
>   G....delete from MATERIALIZATION_REBUILD_LOCKS where mrl_txn_id = 120398084
>   G....delete from MATERIALIZATION_REBUILD_LOCKS where mrl_txn_id = 120398112
> {noformat}



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