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

Tip

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:

Value | Numeric Value | Description |
---|---|---|

`BoundLE` | `0` | Lower bound |

`BoundLT` | `1` | Strict lower bound |

`BoundGE` | `2` | Upper bound |

`BoundGT` | `3` | Strict upper bound |

`BoundEQ` | `4` | Equality |