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https://issues.apache.org/jira/browse/DRILL-2765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14493722#comment-14493722
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Masood Parvari edited comment on DRILL-2765 at 4/14/15 7:36 AM:
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yes of course. I attached 2 files. the proto file is :
message Log
{
optional string date = 1;
optional string url = 2;
}
in the files,one sample record is written repeatedly. File
url_column_completely_null.parquet, as the name suggests have a complete null
column. File url_column_onetime_value.parquet, in just one record, has value
for 'url' column. The latter can be queried by drill while the former throws a
null pointer exception
was (Author: masood):
yes of course. I will attach 2 file. the proto file is :
message Log
{
optional string date = 1;
optional string url = 2;
}
in the files,one sample record is written repeatedly. File
url_column_completely_null.parquet, as the name suggests have a complete null
column. File url_column_onetime_value.parquet, in just one record, has value
for 'url' column. The latter can be queried by drill while the former throws a
null pointer exception
> Throwing a NPE on exceuting query against parquet files
> --------------------------------------------------------
>
> Key: DRILL-2765
> URL: https://issues.apache.org/jira/browse/DRILL-2765
> Project: Apache Drill
> Issue Type: Sub-task
> Components: Storage - Parquet
> Affects Versions: 0.8.0
> Reporter: Mohsen Zainalpour
> Assignee: Steven Phillips
> Fix For: 1.0.0
>
> Attachments: url_column_completely_null.parquet,
> url_column_onetime_value.parquet
>
>
> Executing a query on a parquet file that one of it`s columns haven`t any
> value at all(but field exists in the schema) thorws a NPE
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