class DuckDB::Result

def enum_dictionary_values(col_index)

result.enum_dictionary_values(1) # => ['sad', 'ok', 'happy', 'π˜ΎπΎΦ…Ι­ 😎']
result = con.query('SELECT * FROM enums')
con.execute("CREATE TABLE enums (id INTEGER, mood mood)")
con.execute("CREATE TYPE mood AS ENUM ('sad', 'ok', 'happy', 'π˜ΎπΎΦ…Ι­ 😎')")
con = db.connect
db = DuckDB::Database.open('duckdb_database')
require 'duckdb'
returns all available ENUM type values of the specified column index. 
def enum_dictionary_values(col_index)
  values = []
  _enum_dictionary_size(col_index).times do |i|
    values << _enum_dictionary_value(col_index, i)
  end
  values
end