- data_property(:Id, ?Property) is nondet
- True when Property is a known property about the data source Id.
Defined properties are:
- columns(-Count)
- Number of columns in the table.
- column_names(-Names)
- Names is a list of the column names as they appear in the
data.
- rows(-Rows)
- Number of rows in the table
- hash(-Hash)
- Get the internal (hashed) identifier for the data source
- source_version(-SourceVersion)
- A term (often a dict) that provides version information
about the source. Details depend on the source.
- materialized(-TimeStamp)
- The data source was materialized at TimeStamp.
- source(-Term)
- Description of the original source term used to declare
the data source