Major Description
When we change the value of sortColumns by alter table query and then run unset for longStringColumn. it removes some columns from table schema.
CREATE TABLE if not exists $longStringTable(id INT, name STRING, description STRING, address STRING, note STRING) STORED AS carbondataTBLPROPERTIES('sort_columns'='id,name');
alter table long_string_table set tblproperties('sort_columns'='ID','sort_scope'='no_sort');
alter table long_string_table unset tblproperties('long_string_columns');
these queries will remove Name column from the schema because initially it was a sortColumn and after that value of sortColumns is changed.
