[SPARK-2594][SQL] Add CACHE TABLE <name> AS SELECT ... (Updated as per review comments) #2390
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This feature allows user to add cache table from the select query. Example : ADD CACHE TABLE <tableName> AS SELECT * FROM TEST_TABLE. Spark takes this type of SQL as command and it does eager caching. It can be executed from SQLContext and HiveContext. Signed-off-by: ravipesala <[email protected]>
This feature allows user to add cache table from the select query. Example : ADD CACHE TABLE <tableName> AS SELECT * FROM TEST_TABLE. Spark takes this type of SQL as command and it does eager caching. It can be executed from SQLContext and HiveContext. Signed-off-by: ravipesala <[email protected]>
Add-Cache-table-as
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Can one of the admins verify this patch? |
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I think opt(AS ~ select) would be better here? Otherwise illegal statements like CACHE TABLE AS and CACHE TABLE SELECT * FROM t would both be allowed.
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Actually opt(AS ~> select), since we don't care the semantic value returned by AS.
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Thank you for your comments. Yes,It is better to add as opt(AS ~> select)
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As there is a confusion in rebasing, I have created a new pull request #2397 rebased with master and also fixed the review comments raised here. |
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Would you mind to close this PR since #2397 was opened as a replacement? |
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OK. Closing this PR |
asfgit
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Sep 19, 2014
This feature allows user to add cache table from the select query. Example : ```CACHE TABLE testCacheTable AS SELECT * FROM TEST_TABLE``` Spark takes this type of SQL as command and it does lazy caching just like ```SQLContext.cacheTable```, ```CACHE TABLE <name>``` does. It can be executed from both SQLContext and HiveContext. Recreated the pull request after rebasing with master.And fixed all the comments raised in previous pull requests. #2381 #2390 Author : ravipesala ravindra.pesalahuawei.com Author: ravipesala <[email protected]> Closes #2397 from ravipesala/SPARK-2594 and squashes the following commits: a5f0beb [ravipesala] Simplified the code as per Admin comment. 8059cd2 [ravipesala] Changed the behaviour from eager caching to lazy caching. d6e469d [ravipesala] Code review comments by Admin are handled. c18aa38 [ravipesala] Merge remote-tracking branch 'remotes/ravipesala/Add-Cache-table-as' into SPARK-2594 394d5ca [ravipesala] Changed style fb1759b [ravipesala] Updated as per Admin comments 8c9993c [ravipesala] Changed the style d8b37b2 [ravipesala] Updated as per the comments by Admin bc0bffc [ravipesala] Merge remote-tracking branch 'ravipesala/Add-Cache-table-as' into Add-Cache-table-as e3265d0 [ravipesala] Updated the code as per the comments by Admin in pull request. 724b9db [ravipesala] Changed style aaf5b59 [ravipesala] Added comment dc33895 [ravipesala] Updated parser to support add cache table command b5276b2 [ravipesala] Updated parser to support add cache table command eebc0c1 [ravipesala] Add CACHE TABLE <name> AS SELECT ... 6758f80 [ravipesala] Changed style 7459ce3 [ravipesala] Added comment 13c8e27 [ravipesala] Updated parser to support add cache table command 4e858d8 [ravipesala] Updated parser to support add cache table command b803fc8 [ravipesala] Add CACHE TABLE <name> AS SELECT ...
erictu
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Sep 16, 2015
This feature allows user to add cache table from the select query. Example : ```CACHE TABLE testCacheTable AS SELECT * FROM TEST_TABLE``` Spark takes this type of SQL as command and it does lazy caching just like ```SQLContext.cacheTable```, ```CACHE TABLE <name>``` does. It can be executed from both SQLContext and HiveContext. Recreated the pull request after rebasing with master.And fixed all the comments raised in previous pull requests. apache/spark#2381 apache/spark#2390 Author : ravipesala ravindra.pesalahuawei.com Author: ravipesala <[email protected]> Closes #2397 from ravipesala/SPARK-2594 and squashes the following commits: a5f0beb [ravipesala] Simplified the code as per Admin comment. 8059cd2 [ravipesala] Changed the behaviour from eager caching to lazy caching. d6e469d [ravipesala] Code review comments by Admin are handled. c18aa38 [ravipesala] Merge remote-tracking branch 'remotes/ravipesala/Add-Cache-table-as' into SPARK-2594 394d5ca [ravipesala] Changed style fb1759b [ravipesala] Updated as per Admin comments 8c9993c [ravipesala] Changed the style d8b37b2 [ravipesala] Updated as per the comments by Admin bc0bffc [ravipesala] Merge remote-tracking branch 'ravipesala/Add-Cache-table-as' into Add-Cache-table-as e3265d0 [ravipesala] Updated the code as per the comments by Admin in pull request. 724b9db [ravipesala] Changed style aaf5b59 [ravipesala] Added comment dc33895 [ravipesala] Updated parser to support add cache table command b5276b2 [ravipesala] Updated parser to support add cache table command eebc0c1 [ravipesala] Add CACHE TABLE <name> AS SELECT ... 6758f80 [ravipesala] Changed style 7459ce3 [ravipesala] Added comment 13c8e27 [ravipesala] Updated parser to support add cache table command 4e858d8 [ravipesala] Updated parser to support add cache table command b803fc8 [ravipesala] Add CACHE TABLE <name> AS SELECT ...
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Updated as per the review comments of Admin.
Previous pull request is #2381