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Posted to issues@tajo.apache.org by "DaeMyung Kang (JIRA)" <ji...@apache.org> on 2014/12/13 16:08:13 UTC

[jira] [Assigned] (TAJO-1226) LogicalPlanVerifier should check not supported type in file formats

     [ https://issues.apache.org/jira/browse/TAJO-1226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

DaeMyung Kang reassigned TAJO-1226:
-----------------------------------

    Assignee: DaeMyung Kang

> LogicalPlanVerifier should check not supported type in file formats
> -------------------------------------------------------------------
>
>                 Key: TAJO-1226
>                 URL: https://issues.apache.org/jira/browse/TAJO-1226
>             Project: Tajo
>          Issue Type: Improvement
>          Components: planner/optimizer
>            Reporter: Hyunsik Choi
>            Assignee: DaeMyung Kang
>             Fix For: 0.9.1
>
>
> *Problem*
> There are a variety of file formats in Hadoop eco systems. BTW, they have different type supports. For example, RCFile supports DATE type, but Parquet does not support DATE. Users can use not supported data types in a specified file format for writing tables.
> But, current Tajo does not check available data types for each file format. So, if a user specifies not supported types in his table for writing, a runtime error will occur while a query is running.
> *Solution*
> We should check not supported data type in logical plan verification phase.



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