[jira] [Commented] (DRILL-4079) Filter on a hive partitioned column which only has spaces is not working

["Rahul Challapalli (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-4079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15003138#comment-15003138 ] 

Rahul Challapalli commented on DRILL-4079:
------------------------------------------

It looks like it is happening in more simple cases where a string column has a value with a trailing space

> Filter on a hive partitioned column which only has spaces is not working
> ------------------------------------------------------------------------
>
>                 Key: DRILL-4079
>                 URL: https://issues.apache.org/jira/browse/DRILL-4079
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - Hive
>            Reporter: Rahul Challapalli
>            Priority: Critical
>
> The below query does not return the right result
> {code}
> select * from hive.empty_lengthy_p2 where varchar_col='         ';
> +----------+--------------+
> | int_col  | varchar_col  |
> +----------+--------------+
> +----------+--------------+
> No rows selected (0.393 seconds)
> {code}
> Data : 
> {code}
> 1|dhfawriuueiq dshfjklhfiue eiufhwelfhleiruhj ejfwekjlf hsjdkgfhsdjk  hjd hdfkh sdhg dkj hsdhg jds gsdlgd sd hjk sdjhkjdhgsdhg
> 2|jkdshgf jhg sdgj dlsg jsdgjg    jkdhgiergergd fgjgioug8945u irjfoiej0930j pofkqpgogogj dogj09g djvkldsjgjgirewoie dkflvsd vkdvskgjiwegjwe;sdkvjsdgfdgksdjgkdjkdjgksjg sdkjgdsjg skdjggj;sdgjd sk;gjsd
> 3|dfg
> 4|sdjklhkhjdfgjhdfgkjhdfkjldfsgjdsfkjhdfmnb,cv
> 5|dfg
> 6|
> 7|jkdshgf jhg sdgj dlsg jsdgjg    jkdhgiergergd fgjgioug8945u irjfoiej0930j pofkqpgogogj dogj09g djvkldsjgjgirewoie dkflvsd vkdvskgjiwegjwe;sdkvjsdgfdgksdjgkdjkdjgksjg sdkjgdsjg skdjggj;sdgjd sk;gjsd
> 8|?
> 9|
> 10|?
> {code}
> Hive DDL :
> {code}
> DROP TABLE IF EXISTS empty_lengthy;
> CREATE EXTERNAL TABLE empty_lengthy (
>     int_col INT,
>     varchar_col STRING
>    )
> ROW FORMAT DELIMITED FIELDS TERMINATED BY "|"
> STORED AS TEXTFILE LOCATION "/drill/testdata/partition_pruning/hive/empty_lengthy_partitions.tbl";
> DROP TABLE IF EXISTS empty_lengthy_p2;
> CREATE TABLE empty_lengthy_p2 (
>     int_col INT
>    )
> PARTITIONED BY (varchar_col STRING)
> ROW FORMAT DELIMITED FIELDS TERMINATED BY "|"
> STORED AS TEXTFILE LOCATION "/drill/testdata/partition_pruning/hive/empty_lengthy_partitions_p2"
> TBLPROPERTIES ("serialization.null.format"="?");
> SET hive.exec.dynamic.partition.mode=true;
> insert overwrite table empty_lengthy_p2 partition (varchar_col)
> select int_col, varchar_col from empty_lengthy;
> {code}



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