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https://issues.apache.org/jira/browse/TRAFODION-3070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16489433#comment-16489433
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Anoop Sharma commented on TRAFODION-3070:
-----------------------------------------
See comments in trafodion-3084 regarding registration of tables before issuing
comment command.
> Cannot create comment on HIVE table
> -----------------------------------
>
> Key: TRAFODION-3070
> URL: https://issues.apache.org/jira/browse/TRAFODION-3070
> Project: Apache Trafodion
> Issue Type: Bug
> Components: sql-general
> Affects Versions: any
> Reporter: zhang.lei
> Assignee: zhang.lei
> Priority: Major
> Fix For: any
>
>
> I cannot create comment on HIVE table.
> SQL>comment on table hive.hive.test01 is 'test';
> ---ERROR[1389] Object HIVE.HIVE.TEST01 does not exist in Trafodion.
> [2018-05-14 15:51:31]
> Then I create an external table in trafci for the hive table.
> SQL>create external table test01(a largeint,b varchar(4), c varchar(4)) for
> hive.hive.test01;
> — SQL operation complete.
> And I found I can create comment on the external table.
> SQL>comment on table "__HV_HIVE__".test01 is 'test';
> — SQL operation complete.
> SQL>showddl "__HV_HIVE__".test01;
> CREATE EXTERNAL TABLE TEST01
> (
> A LARGEINT DEFAULT NULL NOT SERIALIZED
> , B VARCHAR(4) CHARACTER SET ISO88591 COLLATE
> DEFAULT DEFAULT NULL NOT SERIALIZED
> , C VARCHAR(4) CHARACTER SET ISO88591 COLLATE
> DEFAULT DEFAULT NULL NOT SERIALIZED
> )
> FOR HIVE.HIVE.TEST01
> ;
> COMMENT ON TABLE TRAFODION."__HV_HIVE__".TEST01 IS 'test' ;
> After that, I try to create comment on the HIVE table.
> The comment statement completes and I check ddls of the HIVE table.
> But the comment 'test0102' doesn't appear in the ddl.
> And comment statement are in front of the semicolon that is the end sign for
> external table ddl.
> SQL>comment on table hive.hive.test01 is 'test0102';
> — SQL operation complete.
> SQL>showddl hive.hive.test01;
> /* Hive DDL */
> CREATE TABLE DEFAULT.TEST01
> (
> A bigint
> , B char(4)
> , C char(4)
> )
> stored as textfile
> ;
> /* Trafodion DDL */
> REGISTER /*INTERNAL*/ HIVE TABLE HIVE.HIVE.TEST01;
> /* ObjectUID = 1137319817757950657 */
> CREATE EXTERNAL TABLE TEST01
> (
> A LARGEINT DEFAULT NULL NOT SERIALIZED
> , B VARCHAR(4) CHARACTER SET ISO88591 COLLATE
> DEFAULT DEFAULT NULL NOT SERIALIZED
> , C VARCHAR(4) CHARACTER SET ISO88591 COLLATE
> DEFAULT DEFAULT NULL NOT SERIALIZED
> )
> FOR HIVE.HIVE.TEST01
> COMMENT ON TABLE TRAFODION."__HV_HIVE__".TEST01 IS 'test' ;
> ;
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