[jira] [Created] (DRILL-4544) Improve error messages for REFRESH TABLE METADATA command

["Arina Ielchiieva (JIRA)" <ji...@apache.org>]

Arina Ielchiieva created DRILL-4544:
---------------------------------------

             Summary: Improve error messages for REFRESH TABLE METADATA command
                 Key: DRILL-4544
                 URL: https://issues.apache.org/jira/browse/DRILL-4544
             Project: Apache Drill
          Issue Type: Improvement
          Components: Metadata
            Reporter: Arina Ielchiieva
            Assignee: Arina Ielchiieva
            Priority: Minor
             Fix For: 1.7.0


Improve the error messages thrown by REFRESH TABLE METADATA command:
In the first case below, the error is maprfs.abc doesn't exist. It should throw a Object not found or workspace not found. It is currently throwing a non helpful message;
0: jdbc:drill:> refresh table metadata maprfs.abc.`my_table`;
--------------------+
ok	summary
--------------------+
false	Error: null
--------------------+
1 row selected (0.355 seconds)
In the second case below, it says refresh table metadata is supported only for single-directory based Parquet tables. But the command works for nested multi-directory Parquet files.
0: jdbc:drill:> refresh table metadata maprfs.vnaranammalpuram.`rfm_sales_vw`;
-----------+
ok	summary
-----------+
false	Table rfm_sales_vw does not support metadata refresh. Support is currently limited to single-directory-based Parquet tables.
-----------+
1 row selected (0.418 seconds)
0: jdbc:drill:>



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