The KeySet class is a regular type that represents a collection of Keys.
Users can construct a KeySet instance, then add Keys and ranges of Keys to the set. The caller is responsible for ensuring that all keys in a given KeySet instance contain the same number and types of values.
Users may also optionally construct an instance that represents all keys with KeySet::All().
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-09 UTC."],[[["The `KeySet` class represents a collection of `Key`s in the Google Cloud Spanner C++ library, allowing users to define sets of keys and key ranges."],["Users can construct `KeySet` instances and add individual `Key`s or ranges of `Key`s to them, ensuring that all keys in the set have matching value types and counts."],["`KeySet::All()` allows users to represent the set of all keys, useful for operations like deleting all data from a table, as shown in the provided example."],["The library provides methods like `AddKey` and `AddRange` for modifying `KeySet` instances, and the content has a list of available `KeySet` versions ranging from 2.11.0 to the latest 2.37.0-rc."]]],[]]