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From "Henrique Alves Junqueira Nogueira Branco (Jira)" <j...@apache.org>
Subject [jira] [Updated] (SQOOP-3476) Allow table choose in --map-column-hive parameter while importing to MySQL
Date Wed, 03 Jun 2020 20:05:00 GMT

     [ https://issues.apache.org/jira/browse/SQOOP-3476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Henrique Alves Junqueira Nogueira Branco updated SQOOP-3476:
------------------------------------------------------------
    Summary: Allow table choose in --map-column-hive parameter while importing to MySQL  (was:
Allow table choose in --map-column-hive parameter.)

> Allow table choose in --map-column-hive parameter while importing to MySQL
> --------------------------------------------------------------------------
>
>                 Key: SQOOP-3476
>                 URL: https://issues.apache.org/jira/browse/SQOOP-3476
>             Project: Sqoop
>          Issue Type: Improvement
>          Components: connectors/mysql
>    Affects Versions: 1.4.7
>         Environment: MySQL 8.0, Sqoop 1.4.7, Hive 3.1.1
>            Reporter: Henrique Alves Junqueira Nogueira Branco
>            Priority: Major
>              Labels: features
>
> Hi there, 
> o achieve that I've used first the following command line:
>  sqoop-import-all-tables
> --connect jdbc:mysql://IP:porta/mydatabase
> --username myusername
> -p
> --hive-import
> --direct
> But there are some incompatibility between data type in MySQL and Hive, and I received
the following error message:
>  ERROR tool.ImportAllTablesTool: Encountered IOException running import job: java.io.IOException:
Hive does not support the SQL type for column rowguid.
> So, looking at [Sqoop 1.4.7 documentation|https://sqoop.apache.org/docs/1.4.7/SqoopUserGuide.html],
I noticed that there is a parameter 
> {{--map-column-hive <name-of-column-to-map>}}.
> So, I added it to my command line: 
> {{--map-column-hive rowguid=binary}} 
> and got this new error:
>  ERROR sqoop.Sqoop: Got exception running Sqoop: java.lang.IllegalArgumentException:
No column by the name rowguid found while importing data
> java.lang.IllegalArgumentException: No column by the name rowguid found while importing
data
> This error happens when Sqoop is importing the next table after the one containing rowguid
column.
> My database has several tables and tons of columns. When I execute the above command
line, it goes normal until it throws me an error related to missing column rowguid. Of course,
this mapping should be done just on the specific table where this column exists, not in all
tables.
> Is there a way to define {{table-name + column-name}} in {{--map-column-hive}} 
> parameter? Or another way to step over this issue? Maybe importing all tables changing
automatically the data types?



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