Assertion: column's value | /r/HasProperty | derived
Facets:
value: than being stored on disc
type: OTHER
Source sentences:
text: If an expression references an input column that is overwritten by the Derived Column transformation, the expression uses the original value of the column, not the derived value.
text: When queried, virtual columns appear to be normal table columns, but their values are derived rather than being stored on disc.