class DuckDB::Appender

def append_double(value)

.flush
.end_row
.append_double(1.23)
appender
appender = con.appender('numbers')
con.query('CREATE TABLE numbers (num DOUBLE)')
con = db.connect
db = DuckDB::Database.open
require 'duckdb'

Appends a double value to the current row in the appender.

appender.append_double(val) -> self
call-seq: 
def append_double(value)
  return self if _append_double(value)
  raise_appender_error('failed to append_double')
end