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From "Jacques Nadeau (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-2223) Empty parquet file created with Limit 0 query errors out when querying
Date Tue, 05 May 2015 13:38:14 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jacques Nadeau updated DRILL-2223:
----------------------------------
    Fix Version/s:     (was: 1.0.0)
                   1.2.0

> Empty parquet file created with Limit 0 query errors out when querying
> ----------------------------------------------------------------------
>
>                 Key: DRILL-2223
>                 URL: https://issues.apache.org/jira/browse/DRILL-2223
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - Parquet
>    Affects Versions: 0.7.0
>            Reporter: Aman Sinha
>            Assignee: Steven Phillips
>             Fix For: 1.2.0
>
>
> Doing a CTAS with limit 0 creates a 0 length parquet file which errors out during querying.
 This should at least write the schema information and metadata which will allow queries to
run. 
> {code}
> 0: jdbc:drill:zk=local> create table tt_nation2 as select n_nationkey, n_name, n_regionkey
from cp.`tpch/nation.parquet` limit 0;
> +------------+---------------------------+
> |  Fragment  | Number of records written |
> +------------+---------------------------+
> | 0_0        | 0                         |
> +------------+---------------------------+
> 1 row selected (0.315 seconds)
> 0: jdbc:drill:zk=local> select n_nationkey from tt_nation2;
> Query failed: RuntimeException: file:/tmp/tt_nation2/0_0_0.parquet is not a Parquet file
(too small)
> {code}



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