A column with a semantic tag attached.
This message has
oneof_ fields (mutually exclusive fields).
For each oneof, at most one member field can be set at the same time.
Setting any member of the oneof automatically clears all other
Required. Identifies the column.
A column can be tagged with a InfoType to use the relevant public dataset as a statistical model of population, if available. We currently support US ZIP codes, region codes, ages and genders. To programmatically obtain the list of supported InfoTypes, use ListInfoTypes with the supported_by=RISK_ANALYSIS filter. This field is a member of `oneof`_ ``tag``.
A column can be tagged with a custom tag. In this case, the user must indicate an auxiliary table that contains statistical information on the possible values of this column (below). This field is a member of `oneof`_ ``tag``.
If no semantic tag is indicated, we infer the statistical model from the distribution of values in the input data This field is a member of `oneof`_ ``tag``.