This option directs SQL to configure the SQLDA with larger
    CHARACTER VARYING strings than would normally be seen. The value
    of n is an unsigned numeric literal that specifies the number of
    characters that are added to the estimated length. Any CHARACTER
    (CHAR) types are converted to CHARACTER VARYING (VARCHAR). This
    rule is applied to comparison operators <, <=, >, >=, =, <>, and
    string functions (STARTING WITH, CONTAINING).