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https://issues.apache.org/jira/browse/HIVE-14249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15495402#comment-15495402
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Lefty Leverenz edited comment on HIVE-14249 at 9/16/16 11:53 PM:
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Doc note: See HIVE-14486 and HIVE-14488 for new DDL syntax. HIVE-14490 (Block
ACID for materialized views) should also be documented, as well as the new
configuration parameters *hive.materializedview.fileformat* and
*hive.materializedview.serde*. Added a TODOC2.2 label.
Here's where the docs belong:
* [DDL (new section for CREATE/DROP MATERIALIZED VIEW, perhaps adding ALTER
later on) | https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL]
* [DDL -- Describe Table/View/Column |
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-DescribeTable/View/Column]
* Edit: no, don't document anything here because this isn't a "limitation"
it's just common sense -- [Hive Transactions -- Limitations (???) |
https://cwiki.apache.org/confluence/display/Hive/Hive+Transactions#HiveTransactions-Limitations]
-- although the restriction could be mentioned in the DDL doc
* [Configuration Properties -- Query and DDL Execution |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-QueryandDDLExecution]
was (Author: le...@hortonworks.com):
Doc note: See HIVE-14486 and HIVE-14488 for new DDL syntax. HIVE-14490 (Block
ACID for materialized views) should also be documented, as well as the new
configuration parameters *hive.materializedview.fileformat* and
*hive.materializedview.serde*. Added a TODOC2.2 label.
Here's where the docs belong:
* [DDL (new section for CREATE/DROP MATERIALIZED VIEW, perhaps adding ALTER
later on) | https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL]
* [DDL -- Describe Table/View/Column |
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-DescribeTable/View/Column]
* [Hive Transactions -- Limitations (???) |
https://cwiki.apache.org/confluence/display/Hive/Hive+Transactions#HiveTransactions-Limitations]
* [Configuration Properties -- Query and DDL Execution |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-QueryandDDLExecution]
> Add simple materialized views with manual rebuilds
> --------------------------------------------------
>
> Key: HIVE-14249
> URL: https://issues.apache.org/jira/browse/HIVE-14249
> Project: Hive
> Issue Type: New Feature
> Components: Materialized views, Parser
> Reporter: Alan Gates
> Assignee: Jesus Camacho Rodriguez
> Labels: TODOC2.2
> Fix For: 2.2.0
>
> Attachments: HIVE-10459.2.patch, HIVE-14249.05.patch,
> HIVE-14249.06.patch
>
>
> This patch is a start at implementing simple views. It doesn't have enough
> testing yet (e.g. there's no negative testing). And I know it fails in the
> partitioned case. I suspect things like security and locking don't work
> properly yet either. But I'm posting it as a starting point.
> In this initial patch I'm just handling simple materialized views with manual
> rebuilds. In later JIRAs we can add features such as allowing the optimizer
> to rewrite queries to use materialized views rather than tables named in the
> queries, giving the optimizer the ability to determine when a materialized
> view is stale, etc.
> Also, I didn't rebase this patch against trunk after the migration from
> svn->git so it may not apply cleanly.
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