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

["Venkatesh Seetharam (JIRA)" <ji...@apache.org>]

Venkatesh Seetharam created HIVE-5550:
-----------------------------------------

             Summary: Import fails for tables created with default text and sequence file formats using HCatalog API
                 Key: HIVE-5550
                 URL: https://issues.apache.org/jira/browse/HIVE-5550
             Project: Hive
          Issue Type: Bug
    Affects Versions: 0.11.0
            Reporter: Venkatesh Seetharam


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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