[jira] [Commented] (HIVE-5550) Import fails for tables created with default text, sequence and orc file formats using HCatalog API

["Thejas M Nair (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-5550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13838459#comment-13838459 ] 

Thejas M Nair commented on HIVE-5550:
-------------------------------------

+1

> Import fails for tables created with default text, sequence and orc file formats using HCatalog API
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-5550
>                 URL: https://issues.apache.org/jira/browse/HIVE-5550
>             Project: Hive
>          Issue Type: Bug
>          Components: HCatalog
>    Affects Versions: 0.11.0
>            Reporter: Venkatesh Seetharam
>            Assignee: Sushanth Sowmyan
>         Attachments: HIVE-5550.2.patch, HIVE-5550.3.patch, HIVE-5550.patch
>
>
> A table was created using HCatalog API with out specifying the file format, it defaults to:
> {code}
> fileFormat=TextFile, inputformat=org.apache.hadoop.mapred.TextInputFormat, outputformat=org.apache.hadoop.hive.ql.io.IgnoreKeyTextOutputFormat
> {code}
> But, when hive fetches the table from the metastore, it strangely replaces the output format with org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
> and the comparison between source and target table fails.
> The code in org.apache.hadoop.hive.ql.parse.ImportSemanticAnalyzer#checkTable does a string comparison of classes and fails.
> {code}
>       // check IF/OF/Serde
>       String existingifc = table.getInputFormatClass().getName();
>       String importedifc = tableDesc.getInputFormat();
>       String existingofc = table.getOutputFormatClass().getName();
>       String importedofc = tableDesc.getOutputFormat();
>       if ((!existingifc.equals(importedifc))
>           || (!existingofc.equals(importedofc))) {
>         throw new SemanticException(
>             ErrorMsg.INCOMPATIBLE_SCHEMA
>                 .getMsg(" Table inputformat/outputformats do not match"));
>       }
> {code}
> This only affects tables with text and sequence file formats but not rc or orc.



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