physical properties. Compare with chemical property. Measurement of a physical property may change the arrangement but not the structure of the molecules of a material. Examples of physical properties are density, color, boiling point, volume, temperature, and mass.
A property associated with a physical operator and dependent on the actual algorithm implemented by that operator and on the physical properties of its children (thus, recursively, on the physical operators in the sub-plan). For example, the ordering (from an index scan or sort) of the outer child is usually inherited after subsequent join operators are evaluated, but each plan in an equivalence class has potentially different ordering depending on the underlying operators used in the sub-plan.
a property used to characterize physical objects