[
https://issues.apache.org/jira/browse/SPARK-31737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17109526#comment-17109526
]
Apache Spark commented on SPARK-31737:
--------------------------------------
User 'KaiZhang956' has created a pull request for this issue:
https://github.com/apache/spark/pull/28557
> SparkSQL can't recognize the modified length of Hive varchar
> ------------------------------------------------------------
>
> Key: SPARK-31737
> URL: https://issues.apache.org/jira/browse/SPARK-31737
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Kevin Zhang
> Priority: Major
>
> {code:java}
> //Create a hive table in sparksql
> spark-sql> create table test_table(id varchar(5)) stored as textfile;
> // Create a file under linux, the content is 1234567890
> // Then load this file into this hive table
> spark-sql> load data local inpath '/home/test_table' overwrite into table
> test_table;
> // Query this table in sparksql
> spark-sql> select * from test_table;
> 12345
> // Modify the length of this field in hive
> hive> alter table test_table change column id id varchar(10);
> // Query this table in hive
> hive> select * from test_table;
> OK
> 1234567890
> // Query this table in sparksql again
> spark-sql> select * from test_table;
> // The obtained id is still 12345, so the length modification does not take
> effect in SparkSQL
> 12345{code}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
