new_column_from_field

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb, line 147
        def new_column_from_field(table_name, field) # :nondoc:
          column_name, type, default, notnull, oid, fmod, collation, comment = field
          oid = oid.to_i
          fmod = fmod.to_i
          type_metadata = fetch_type_metadata(column_name, type, oid, fmod)
          default_value = extract_value_from_default(default)
          default_function = extract_default_function(default_value, default)
          PostgreSQLColumn.new(
            column_name,
            default_value,
            type_metadata,
            !notnull,
            table_name,
            default_function,
            collation,
            comment: comment.presence,
            max_identifier_length: max_identifier_length
          )
        end