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Posted to issues@drill.apache.org by "Rahul Challapalli (JIRA)" <ji...@apache.org> on 2016/01/28 22:20:39 UTC
[jira] [Created] (DRILL-4323) Hive Native Reader : A simple
count(*) throws Incoming batch has an empty schema error
Rahul Challapalli created DRILL-4323:
----------------------------------------
Summary: Hive Native Reader : A simple count(*) throws Incoming batch has an empty schema error
Key: DRILL-4323
URL: https://issues.apache.org/jira/browse/DRILL-4323
Project: Apache Drill
Issue Type: Bug
Components: Storage - Hive
Affects Versions: 1.5.0
Reporter: Rahul Challapalli
Priority: Critical
git.commit.id.abbrev=3d0b4b0
A simple count(*) query does not work when hive native reader is enabled
{code}
0: jdbc:drill:zk=10.10.100.190:5181> select count(*) from customer;
+---------+
| EXPR$0 |
+---------+
| 100000 |
+---------+
1 row selected (3.074 seconds)
0: jdbc:drill:zk=10.10.100.190:5181> alter session set `store.hive.optimize_scan_with_native_readers` = true;
+-------+--------------------------------------------------------+
| ok | summary |
+-------+--------------------------------------------------------+
| true | store.hive.optimize_scan_with_native_readers updated. |
+-------+--------------------------------------------------------+
1 row selected (0.2 seconds)
0: jdbc:drill:zk=10.10.100.190:5181> select count(*) from customer;
Error: SYSTEM ERROR: IllegalStateException: Incoming batch [#1341, ProjectRecordBatch] has an empty schema. This is not allowed.
Fragment 0:0
[Error Id: 4c867440-0fd3-4eda-922f-0f5eadcb1463 on qa-node191.qa.lab:31010] (state=,code=0)
{code}
Hive DDL for the table :
{code}
create table customer
(
c_customer_sk int,
c_customer_id string,
c_current_cdemo_sk int,
c_current_hdemo_sk int,
c_current_addr_sk int,
c_first_shipto_date_sk int,
c_first_sales_date_sk int,
c_salutation string,
c_first_name string,
c_last_name string,
c_preferred_cust_flag string,
c_birth_day int,
c_birth_month int,
c_birth_year int,
c_birth_country string,
c_login string,
c_email_address string,
c_last_review_date string
)
STORED AS PARQUET
LOCATION '/drill/testdata/customer'
{code}
Attached the log file with the stacktrace
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