The following system attributes are some examples of the object-valued system attributes:
•Context
•"Column Histogram"
•"Column Statistics"
•"Data Profiling"
•"Data Sampling"
•"Workflow Assignees" in the SELECT
The examples in the previous section show
such values in Json format. The schema of the objects Entity, SemanticEntity,
DataSample, DataProfile, DataProfile_Statistics, DataProfile_Histogram, and
Grantee, etc. are defined in the MM REST API documentation.
When used in
the WHERE clause, the filters with the object-valued system attributes can only
be ANDed with other filters and only be used with the EXISTS and NOT EXISTS
operators.