Description.  This type is used to describe an ordered key bound.


The numeric values are fixed in the API and can be used explicitly; in other words, it is safe to calculate the values and use them.

Enumeration values.  Possible values are shown, along with descriptions, in the following table:

ValueNumeric ValueDescription
BoundLE0Lower bound
BoundLT1Strict lower bound
BoundGE2Upper bound
BoundGT3Strict upper bound