SQLI_KEY_FORMAT (1.5213)    FILE (1)

Name Value
NAME SQLI_KEY_FORMAT
DESCRIPTION
Strategies for converting base values into key values.
Soundex and upper case conversion are common examples. This implies that
comparisons of key values with base values must be preceded by conversion
of the base value to key value. Key formats are frequently lossy; they
can't be converted uniquely back to base format.