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https://issues.apache.org/jira/browse/DRILL-677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14004426#comment-14004426
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George Chow commented on DRILL-677:
-----------------------------------
A describe inside sqlline of any Hive table will report IS_NULLABLE of NO which
is wrong.
{code}
0: jdbc:drill:zk=localhost:5181> describe hive33.`default`.bigint_table;
+-------------+------------+-------------+
| COLUMN_NAME | DATA_TYPE | IS_NULLABLE |
+-------------+------------+-------------+
| keycolumn | VARCHAR | NO |
| column1 | BIGINT | NO |
+-------------+------------+-------------+
2 rows selected (1.534 seconds)
{code}
> INFORMATION_SCHEMA.COLUMNS table lists nullable columns as non-nullable
> ------------------------------------------------------------------------
>
> Key: DRILL-677
> URL: https://issues.apache.org/jira/browse/DRILL-677
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Rahul Challapalli
>
> 1. create hive table ( these columns are nullable)
> hive> DROP TABLE IF EXISTS STUDENTS;
> CREATE EXTERNAL TABLE STUDENTS
> (
> ID VARCHAR(24),
> NAME VARCHAR(24),
> STREET VARCHAR(256),
> ZIPCODE INT,
> STATE VARCHAR(20)
> )
> ROW FORMAT DELIMITED FIELDS
> TERMINATED BY ','
> STORED AS TEXTFILE LOCATION "/drill/testdata/information-schema/students/";
> 2. From drill issue the below query and check the 'IS_NULLABLE" column
> SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA='hive' AND
> TABLE_NAME='students';
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