[jira] [Work started] (IMPALA-9602) Local catalog cache treats table names as case-sensitive

["Aman Sinha (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-9602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on IMPALA-9602 started by Aman Sinha.
------------------------------------------
> Local catalog cache treats table names as case-sensitive
> --------------------------------------------------------
>
>                 Key: IMPALA-9602
>                 URL: https://issues.apache.org/jira/browse/IMPALA-9602
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Catalog, Frontend
>    Affects Versions: Impala 3.4.0
>            Reporter: Aman Sinha
>            Assignee: Aman Sinha
>            Priority: Major
>
> Start up Impala with local catalog enabled.
> {noformat}
> start-impala-cluster.py --catalogd_args="--catalog_topic_mode=minimal" --impalad_args="--use_local_catalog=true"
> {noformat}
> Then create a database 'db1' and a table and run the sequence of DROP, CREATE table with an upper-case database name (using upper-case is important for the repro)..this throws an AnalysisException:
> {noformat}
>   create database db1;
>   use db1;
>   create table ddl_test1 (val string);
> Run the DROP / CREATE using upper-case database name DB1:
> $ impala-shell -q "drop table if exists DB1.ddl_test1 purge; create table DB1.ddl_test1 (val string);"
> Server version: impalad version 3.4.0-SNAPSHOT DEBUG (build 76061331781e67b90d7750abadfaf8b013dc64a5)
> Query: drop table if exists DB1.ddl_test1 purge
> +-------------------------+
> | summary                 |
> +-------------------------+
> | Table has been dropped. |
> +-------------------------+
> Fetched 1 row(s) in 0.68s
> Query: create table DB1.ddl_test1 (val string)
> ERROR: AnalysisException: Table already exists: DB1.ddl_test1
> Could not execute command: create table DB1.ddl_test1 (val string)
> {noformat}
> NOTE: The above sequence may have to be run a few times. Also using either lower-case name 'db1' instead of 'DB1' or running with the remote catalog does not reproduce the problem.



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