Aman Sinha created DRILL-2223:
---------------------------------
Summary: 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
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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