Struct AggregateSetBuilder 

pub struct AggregateSetBuilder<'a> { /* private fields */ }

Collects aggregate overloads into a function set (see Connection::register_aggregate_function_set).

Implementations

impl AggregateSetBuilder<'_>

pub fn add<A: VAggregate>(&mut self) -> Result<&mut Self>

where A::Shared: Default,

Adds overload A (with a default shared state) to the set.

Errors

Returns an error if a logical type cannot be built or the overload conflicts with one already in the set.

pub fn add_with_state<A: VAggregate>( &mut self, shared: A::Shared, ) -> Result<&mut Self>

Adds overload A with an explicit shared state to the set.

Errors

As add.