v.21.11New Features
Allow Subcolumns in DESCRIBE Query Results
Allow to include subcolumns of table columns intoDESCRIBEquery result (can be enabled by settingdescribe_include_subcolumns). #28905 (Anton Popov).
Why it matters
This feature improves the detail and clarity ofDESCRIBE query results by showing subcolumns, which helps users better understand the structure of nested or complex table columns.How to use it
Enable the feature by settingdescribe_include_subcolumns to 1 or true before running the DESCRIBE query.Example:
SET describe_include_subcolumns = 1;
DESCRIBE TABLE your_table;