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Posted to issues@drill.apache.org by "Jacques Nadeau (JIRA)" <ji...@apache.org> on 2015/05/05 15:38:14 UTC
[jira] [Updated] (DRILL-2223) Empty parquet file created with Limit
0 query errors out when querying
[ 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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