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https://issues.apache.org/jira/browse/TAJO-1284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14304910#comment-14304910
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Jaehwa Jung edited comment on TAJO-1284 at 2/4/15 10:37 AM:
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I designed two tables as follows:
- COLUMN_PARTITIONS: Maintains each partition name and partition path. If an
user add one partition, Tajo will insert just one row at this table.
- COLUMN_PARTITION_PARAMS: Maintains each partition key and values by a row.
If an user add one partition which consists of two keys, Tajo will insert two
rows at this table.
I uploaded two files that could help comprehension. For reference, I just
created a script file for MySQL users.
was (Author: blrunner):
I designed two tables as follows:
- COLUMN_PARTITIONS: Maintains each partition name and partition path. If an
user add one partition, Tajo will insert just one row at this table.
- COLUMN_PARTITION_PARAMS: Maintains each partition key and values by a row.
If an user add one partition which consists of two keys, Tajo will insert two
rows at this table.
I uploaded two files that could help comprehension.
> Add alter partition method to CatalogStore
> ------------------------------------------
>
> Key: TAJO-1284
> URL: https://issues.apache.org/jira/browse/TAJO-1284
> Project: Tajo
> Issue Type: Sub-task
> Components: catalog
> Reporter: Jaehwa Jung
> Assignee: Jaehwa Jung
> Attachments: TAJO-1260.png, TAJO-1260.sql
>
>
> This patch will implement ALTER TABLE ADD PARTITION method and ALTER TABLE
> DROP PARTITION method to CatalogStore.
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