Module aggregate

Modules

• agg_types
  Macros to generate match arms for AggType. IMPORTANT: These macros must be carefully maintained especially when adding new AggType/PbAggKind variants.
• def 🔒
  Aggregation function definitions.
• scalar_wrapper 🔒
• user_defined 🔒

Structs

• AggArgs
  An aggregation function may accept 0, 1 or 2 arguments.
• AggCall
  Represents an aggregation function.

Enums

• AggType
  Aggregate function kind.
• AggregateState
  Intermediate state of an aggregate function.

Traits

• AggStateDyn
• AggregateFunction
  A trait over all aggregate functions.

Functions

• build
  Build an aggregate function.
• build_append_only
  Build an append-only Aggregator from AggCall.
• build_retractable
  Build a retractable Aggregator from AggCall.

Type Aliases

• BoxedAggregateFunction
• PbAggKind
  Alias for Kind.