Class PredefinedExpression (0.4.0) 

PredefinedExpression(value)

The available masking rules. Learn more here: https://cloud.google.com/bigquery/docs/column-data-masking-intro#masking_options.

Values: PREDEFINED_EXPRESSION_UNSPECIFIED (0): Default, unspecified predefined expression. No masking will take place since no expression is specified. SHA256 (3): Masking expression to replace data with SHA-256 hash. ALWAYS_NULL (5): Masking expression to replace data with NULLs. DEFAULT_MASKING_VALUE (7): Masking expression to replace data with their default masking values. The default masking values for each type listed as below:

    -  STRING: ""
    -  BYTES: b''
    -  INTEGER: 0
    -  FLOAT: 0.0
    -  NUMERIC: 0
    -  BOOLEAN: FALSE
    -  TIMESTAMP: 0001-01-01 00:00:00 UTC
    -  DATE: 0001-01-01
    -  TIME: 00:00:00
    -  DATETIME: 0001-01-01T00:00:00
    -  GEOGRAPHY: POINT(0 0)
    -  BIGNUMERIC: 0
    -  ARRAY: []
    -  STRUCT: NOT_APPLICABLE
    -  JSON: NULL