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https://issues.apache.org/jira/browse/HIVE-11030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14960510#comment-14960510
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Elliot West commented on HIVE-11030:
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Opened ticket HIVE-12202. I'll submit a patch shortly.
> Enhance storage layer to create one delta file per write
> --------------------------------------------------------
>
> Key: HIVE-11030
> URL: https://issues.apache.org/jira/browse/HIVE-11030
> Project: Hive
> Issue Type: Sub-task
> Components: Transactions
> Affects Versions: 1.2.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
> Fix For: 1.3.0
>
> Attachments: HIVE-11030.2.patch, HIVE-11030.3.patch,
> HIVE-11030.4.patch, HIVE-11030.5.patch, HIVE-11030.6.patch,
> HIVE-11030.7.patch, HIVE-11030.8.branch1.patch, HIVE-11030.8.patch
>
>
> Currently each txn using ACID insert/update/delete will generate a delta
> directory like delta_0000100_0000101. In order to support multi-statement
> transactions we must generate one delta per operation within the transaction
> so the deltas would be named like delta_0000100_0000101_0001, etc.
> Support for MERGE (HIVE-10924) would need the same.
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