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Posted to issues@hive.apache.org by "Zhihua Deng (Jira)" <ji...@apache.org> on 2022/11/01 02:05:00 UTC
[jira] [Resolved] (HIVE-25813) CREATE TABLE x LIKE storagehandler-based-source fails
[ https://issues.apache.org/jira/browse/HIVE-25813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhihua Deng resolved HIVE-25813.
--------------------------------
Fix Version/s: 4.0.0-alpha-2
Resolution: Fixed
Fix has been merged into master. Thank you [~hemanth619] for the contribution.
> CREATE TABLE x LIKE storagehandler-based-source fails
> ------------------------------------------------------
>
> Key: HIVE-25813
> URL: https://issues.apache.org/jira/browse/HIVE-25813
> Project: Hive
> Issue Type: Bug
> Reporter: Sai Hemanth Gantasala
> Assignee: Sai Hemanth Gantasala
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0-alpha-2
>
> Time Spent: 4h
> Remaining Estimate: 0h
>
> {code:java}
> CREATE EXTERNAL TABLE default.dbs (
> DB_ID bigint,
> DB_LOCATION_URI string,
> NAME string,
> OWNER_NAME string,
> OWNER_TYPE string )
> STORED BY 'org.apache.hive.storage.jdbc.JdbcStorageHandler'
> TBLPROPERTIES (
> 'hive.sql.database.type' = 'MYSQL',
> 'hive.sql.jdbc.driver' = 'com.mysql.jdbc.Driver',
> 'hive.sql.jdbc.url' = 'jdbc:mysql://localhost:3306/hive1',
> 'hive.sql.dbcp.username' = 'hive1',
> 'hive.sql.dbcp.password' = 'cloudera',
> 'hive.sql.query' = 'SELECT DB_ID, DB_LOCATION_URI, NAME, OWNER_NAME, OWNER_TYPE FROM DBS'
> );
> CREATE TABLE default.dbscopy LIKE default.dbs;
> Caused by: java.lang.NullPointerException
> at org.apache.hadoop.hive.metastore.HiveMetaStoreUtils.getFieldsFromDeserializer(HiveMetaStoreUtils.java:186) {code}
> With this patch, we don't want to copy over the table properties or any other physical properties (storage handler e.t.c) of the source table when CREATE TABLE LIKE TABLE command is executed. Only table schema (logical properties) should be copied. This implementation is consistent with other SQL engines like Mysql, Redshift etc.
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