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BigQuery Data Policy v1 API - Enum DataMaskingPolicy.Types.PredefinedExpression (1.5.0)
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public enum DataMaskingPolicy . Types . PredefinedExpression
Namespace
Google.Cloud.BigQuery.DataPolicies.V1
Assembly
Google.Cloud.BigQuery.DataPolicies.V1.dll
Fields
Name
Description
AlwaysNull
Masking expression to replace data with NULLs.
DateYearMask
Masking expression to only show the year of Date
,
DateTime
and TimeStamp
. For example, with the
year 2076:
DATE : 2076-01-01
DATETIME : 2076-01-01T00:00:00
TIMESTAMP : 2076-01-01 00:00:00 UTC
Truncation occurs according to the UTC time zone. To change this, adjust
the default time zone using the time_zone
system variable.
For more information, see the <a
href="https://cloud.google.com/bigquery/docs/reference/system-variables">System
variables reference</a>.
DefaultMaskingValue
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: 1970-01-01 00:00:00 UTC
DATE: 1970-01-01
TIME: 00:00:00
DATETIME: 1970-01-01T00:00:00
GEOGRAPHY: POINT(0 0)
BIGNUMERIC: 0
ARRAY: []
STRUCT: NOT_APPLICABLE
JSON: NULL
EmailMask
Masking expression for email addresses.
The masking behavior is as follows:
Syntax-valid email address: Replace username with XXXXX. For example,
cloudysanfrancisco@gmail.com becomes XXXXX@gmail.com.
Syntax-invalid email address: Apply SHA-256 hash.
For more information, see Email
mask .
FirstFourCharacters
Masking expression shows the first four characters of text.
The masking behavior is as follows:
If text length > 4 characters: Replace text with XXXXX, prepend first
four characters of original text.
If text length <= 4 characters: Apply SHA-256 hash.
LastFourCharacters
Masking expression shows the last four characters of text.
The masking behavior is as follows:
If text length > 4 characters: Replace text with XXXXX, append last
four characters of original text.
If text length <= 4 characters: Apply SHA-256 hash.
Sha256
Masking expression to replace data with SHA-256 hash.
Unspecified
Default, unspecified predefined expression. No masking will take place
since no expression is specified.
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Last updated 2024-12-19 UTC.
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