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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (HIVE-22360) MultiDelimitSerDe returns wrong results in last column when the loaded file has more columns than those in table schema
Date Tue, 01 Sep 2020 00:48:01 GMT

     [ https://issues.apache.org/jira/browse/HIVE-22360?focusedWorklogId=476942&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-476942
]

ASF GitHub Bot logged work on HIVE-22360:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 01/Sep/20 00:47
            Start Date: 01/Sep/20 00:47
    Worklog Time Spent: 10m 
      Work Description: github-actions[bot] commented on pull request #823:
URL: https://github.com/apache/hive/pull/823#issuecomment-684124292


   This pull request has been automatically marked as stale because it has not had recent
activity. It will be closed if no further activity occurs.
   Feel free to reach out on the dev@hive.apache.org list if the patch is in need of reviews.


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 476942)
    Time Spent: 0.5h  (was: 20m)

> MultiDelimitSerDe returns wrong results in last column when the loaded file has more
columns than those in table schema
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-22360
>                 URL: https://issues.apache.org/jira/browse/HIVE-22360
>             Project: Hive
>          Issue Type: Bug
>          Components: Serializers/Deserializers
>    Affects Versions: 4.0.0
>            Reporter: Shubham Chaurasia
>            Assignee: Shubham Chaurasia
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>         Attachments: HIVE-22360.1.patch, HIVE-22360.2.patch, HIVE-22360.3.patch
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Repro steps:
> Input file:
> {code}
> 1^,1^,^,0^,0^,0 
> 2^,1^,^,0^,1^,0 
> 3^,1^,^,0^,0^,0 
> 4^,1^,^,0^,1^,0
> {code}
> Queries:
> {code}
> CREATE TABLE  n2(colA int, colB tinyint, colC timestamp, colD smallint, colE smallint)
ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.MultiDelimitSerDe' WITH SERDEPROPERTIES ("field.delim"="^,")STORED
AS TEXTFILE;
> LOAD DATA LOCAL INPATH '/Users/schaurasia/Documents/input_6_cols.csv' OVERWRITE INTO
TABLE n2;
>  select * from n2;
> // wrong last column results here.
> +----------+----------+----------+----------+----------+
> | n2.cola  | n2.colb  | n2.colc  | n2.cold  | n2.cole  |
> +----------+----------+----------+----------+----------+
> | 1        | 1        | NULL     | 0        | NULL     |
> | 2        | 1        | NULL     | 0        | NULL     |
> | 3        | 1        | NULL     | 0        | NULL     |
> | 4        | 1        | NULL     | 0        | NULL     |
> +----------+----------+----------+----------+----------+
> {code}
> Cause:
> In multi-serde parsing, the total length calculation here: https://github.com/apache/hive/blob/rel/release-3.1.2/serde/src/java/org/apache/hadoop/hive/serde2/lazy/LazyStruct.java#L308
does not take extra fields into account.



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