class DuckDB::Appender

def append_varchar_length(value, length)

.flush
.end_row
.append_varchar_length('Alice', 5)
appender
appender = con.appender('names')
con.query('CREATE TABLE names (name VARCHAR)')
con = db.connect
db = DuckDB::Database.open
require 'duckdb'

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

appender.append_varchar_length(val, len) -> self
call-seq: 
def append_varchar_length(value, length)
  return self if _append_varchar_length(value, length)
  raise_appender_error('failed to append_varchar_length')
end