Module utils 

Wrapper and helper functions to help implement crate::executor::Executor for TopN variants

Structs

TopNExecutorWrapper

The struct wraps a TopNExecutorBase

Constants

NO_GROUP_KEY

Traits

GroupKey

The trait for abstracting over a Row-like type.

TopNExecutorBase

Functions

create_cache_key_serde

serialize_pk_to_cache_key

For a given pk (Row), it can be split into order_key and additional_pk according to order_by_len, and the two split parts are serialized separately.

Type Aliases

CacheKeySerde

See CacheKey.