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https://issues.apache.org/jira/browse/TAJO-59?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13752262#comment-13752262
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Jihoon Son commented on TAJO-59:
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You're right. Only MySQL restricts the maximal length as 255.
I'll increase the maximal length.
Thanks, Hyunsik.
> Implement Char Datum Type
> -------------------------
>
> Key: TAJO-59
> URL: https://issues.apache.org/jira/browse/TAJO-59
> Project: Tajo
> Issue Type: Sub-task
> Components: catalog
> Reporter: Hyunsik Choi
> Assignee: Jihoon Son
> Fix For: 0.2-incubating
>
> Attachments: TAJO-59.patch
>
>
> CharDatum represents fixed-length strings.
> This issue involves the following tasks
> * Refactoring CharDatum to represent fixed-length strings
> * Improving LogicalPlanner to support the type length
> * Improving DBStore to support the type length
> * Adding createChar(String val, int length) to DatumFactory
> * Modifying CSVFile, RowFile, RawFile, RCFile, and Trevni to support
> fixed-length strings
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