PredefinedExpression

Masking expression to replace data with NULLs.

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>.

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

Masking expression for email addresses. The masking behavior is as follows:

• Syntax-valid email address: Replace username with XXXXX. For example, [email protected] becomes [email protected].
• Syntax-invalid email address: Apply SHA-256 hash.

For more information, see Email mask.

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.

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.

Default, unspecified predefined expression. No masking will take place since no expression is specified.

Masking expression to replace data with SHA-256 hash.

The names of the product elements

The name of the type

Returns the Java descriptors for this enum. It is recommended to use scalaDescriptors. The Java descriptors are available even when Java conversions is disabled, however they are not available in Scala.js or scala-native.