Reference documentation and code samples for the BigQuery Data Policy Service V1 API module Google::Cloud::Bigquery::DataPolicies::V1::DataMaskingPolicy::PredefinedExpression.
The available masking rules. Learn more here: https://cloud.google.com/bigquery/docs/column-data-masking-intro#masking_options.
Constants
PREDEFINED_EXPRESSION_UNSPECIFIED
value: 0
Default, unspecified predefined expression. No masking will take place
since no expression is specified.
SHA256
value: 3
Masking expression to replace data with SHA-256 hash.
ALWAYS_NULL
value: 5
Masking expression to replace data with NULLs.
DEFAULT_MASKING_VALUE
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