[jira] [Created] (HIVE-9896) \N un-recognized in AVRO format Hive tables

["Madhan Sundararajan Devaki (JIRA)" <ji...@apache.org>]

Madhan Sundararajan Devaki created HIVE-9896:
------------------------------------------------

             Summary: \N un-recognized in AVRO format Hive tables
                 Key: HIVE-9896
                 URL: https://issues.apache.org/jira/browse/HIVE-9896
             Project: Hive
          Issue Type: Bug
          Components: Database/Schema, File Formats, Hive
    Affects Versions: 0.13.0
         Environment: CDH5.2.1, RHEL6.5, Java 7
            Reporter: Madhan Sundararajan Devaki


We Sqooped data from many RDBMS into HDFS in text format with options --null-non-string '\\N' --null-string '\\N'.
When we load these into Hive tables in text format the \N is properly recognized as NULL and we are able to use SQL clauses such as IS NULL and IS NOT NULL against columns.
However, when we convert the text files into AVRO (1.7.6) with SNAPPY compression and try to query using the above SQL clauses, the query does not return results as expected.
Further, we have to use column_name = '\\N' or column_name <> '\\N' as a workaround.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)