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https://issues.apache.org/jira/browse/HIVE-13741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15283297#comment-15283297
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Eugene Koifman commented on HIVE-13741:
---------------------------------------
also
TxnHandler.enqueueLockWithRetry() - this currently adds components that are
only being read to TXN_COMPONENTS. This is useless at best since read op don't
generate anything to compact. For example, delete from T where t1 in (select c1
from C) - no reason to add C to txn_components but we do.
> TxnHandler.enqueueLockWithRetry() - optimizer sql
> --------------------------------------------------
>
> Key: HIVE-13741
> URL: https://issues.apache.org/jira/browse/HIVE-13741
> Project: Hive
> Issue Type: Improvement
> Components: Metastore, Transactions
> Affects Versions: 1.0.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
> Original Estimate: 3h
> Remaining Estimate: 3h
>
> TxnHandler.enqueueLockWithRetry() does SQL insert into 2 tables using
> (possibly) multiple statements for each. Could easily generate 1 statement
> for each table.
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