risingwave_stream/from_proto/
stateless_simple_agg.rs

1// Copyright 2023 RisingWave Labs
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use risingwave_expr::aggregate::AggCall;
16use risingwave_pb::stream_plan::SimpleAggNode;
17
18use super::*;
19use crate::executor::aggregate::StatelessSimpleAggExecutor;
20
21pub struct StatelessSimpleAggExecutorBuilder;
22
23impl_stream_node_body!(StatelessSimpleAgg(SimpleAggNode) => StatelessSimpleAggExecutorBuilder);
24
25impl ExecutorBuilder for StatelessSimpleAggExecutorBuilder {
26    type Node = SimpleAggNode;
27
28    async fn new_boxed_executor(
29        params: ExecutorParams,
30        node: &Self::Node,
31        _store: impl StateStore,
32    ) -> StreamResult<Executor> {
33        let [input]: [_; 1] = params.input.try_into().unwrap();
34        let agg_calls: Vec<AggCall> = node
35            .get_agg_calls()
36            .iter()
37            .map(AggCall::from_protobuf)
38            .try_collect()?;
39
40        let exec = StatelessSimpleAggExecutor::new(
41            params.actor_context,
42            input,
43            params.info.schema.clone(),
44            agg_calls,
45        )?;
46        Ok((params.info, exec).into())
47    }
48}
risingwave_stream/from_proto/stateless_simple_agg.rs

risingwave_stream/from_proto/
stateless_simple_agg.rs
