This query returns columns in a database sorted by their name length.
Query
select column_name,
       length(column_name) col_length,
       table_schema,
       table_name
from v_catalog.columns
where table_schema in ('public2','online_sales', 'store')
order by col_length desc,
         column_name;
Columns
- column_name - column name
- col_length - column name length
- table_schema - table schema name
- table_name - table name
Rows
- One row represents one column of each table in a database
- Scope of rows: each column that exists in a database
- Ordered by length descrending (from longest to shortest) and column name
Sample results

 
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                 
                                                             
                                                             
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                             
                                                             Bart Gawrych
                                                                        Bart Gawrych
                                 Vertica
                                                                Vertica
                                 SQL Server
                                                                                                SQL Server
                                             Azure SQL Database
                                                                                                Azure SQL Database
                                             Oracle database
                                                                                                Oracle database
                                             Snowflake
                                                                                                Snowflake
                                             Amazon Redshift
                                                                                                Amazon Redshift
                                             IBM Db2
                                                                                                IBM Db2
                                             Teradata
                                                                                                Teradata
                                             PostgreSQL
                                                                                                PostgreSQL
                                             MySQL
                                                                                                MySQL
                                             MariaDB
                                                                                                MariaDB