predefined Expression
Parameters
value
The available masking rules. Learn more here: https://cloud.google.com/bigquery/docs/column-data-masking-intro#masking_options. Possible values are: SHA256
, ALWAYS_NULL
, DEFAULT_MASKING_VALUE
, LAST_FOUR_CHARACTERS
, FIRST_FOUR_CHARACTERS
, EMAIL_MASK
, DATE_YEAR_MASK
.