[DISCUSSION] Describe complex columns

Posted by Shreelekhya on Mar 18, 2021; 5:05pm
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/DISCUSSION-Describe-complex-columns-tp107027.html

Hi,

Currently describe formatted displays the column information of a table and
some additional information. When complex types such as  ARRAY, STRUCT, and
MAP types are present in table, column definition can be long and it’s
difficult to read in a nested format.

For complex types available, the DESCRIBE output can be formatted to avoid
long lines for multiple fields. We can pass the complex field name to the
command and visualize its structure as if were a table.

DDL Commands:
DESCRIBE fieldname ON [db_name.]table_name;
DESCRIBE short [db_name.]table_name;

Please let me know your valid inputs about the same.
Following is the link to the design document.

https://docs.google.com/document/d/1uNCByKR09Up9S2hpiEXYDA8XXIEZ2jI9PMSzMIVJ0Js/edit?usp=sharing


Thanks,
Shreelekhya



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