Hi, maybe you can check this ticket 
https://issues.apache.org/jira/browse/HIVE-26227



Thanks,

Butao Zhang

---- Replied Message ----
| From | Flavio Junqueira<f...@apache.org> |
| Date | 11/15/2023 17:26 |
| To | <user@hive.apache.org> |
| Subject | Question on Hive Metastore catalog support |
Hello there,

I'm interested in understanding the Hive Metastore catalog support. I see 
references in the metastore code to catalogs, for example:

https://github.com/apache/hive/blob/17525f169b9a08cd715bfb42899e45b7c689c77a/standalone-metastore/metastore-common/src/main/protobuf/org/apache/hadoop/hive/metastore/hive_metastore.proto#L45

But I don't see create/drop catalog statements in the HiveQL DDL, neither in 
the documentation nor in the code:

https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL
https://github.com/apache/hive/tree/17525f169b9a08cd715bfb42899e45b7c689c77a/ql/src/java/org/apache/hadoop/hive/ql/ddl

Could anyone clarify the state of support for catalogs in the metastore? Are 
there known applications leveraging this catalog support?

Thanks,
-Flavio

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