class val OdbcOptions
"""
Tuning knobs applied once at connect() and propagated to every
statement and cursor created from the connection.
"""
let validate_utf8: Bool
let max_column_bytes: MaxColumnBytes
new val create(
validate_utf8': Bool = true,
max_column_bytes': MaxColumnBytes = MaxColumnBytes._trusted(16_777_216))
=>
validate_utf8 = validate_utf8'
max_column_bytes = max_column_bytes'