risingwave_stream/from_proto/
project_set.rs

1// Copyright 2025 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 multimap::MultiMap;
16use risingwave_common::util::iter_util::ZipEqFast;
17use risingwave_pb::stream_plan::ProjectSetNode;
18
19use super::*;
20use crate::executor::project::{ProjectSetExecutor, ProjectSetSelectItem};
21
22pub struct ProjectSetExecutorBuilder;
23
24impl ExecutorBuilder for ProjectSetExecutorBuilder {
25    type Node = ProjectSetNode;
26
27    async fn new_boxed_executor(
28        params: ExecutorParams,
29        node: &Self::Node,
30        _store: impl StateStore,
31    ) -> StreamResult<Executor> {
32        let [input]: [_; 1] = params.input.try_into().unwrap();
33        let select_list: Vec<_> = node
34            .get_select_list()
35            .iter()
36            .map(|proto| {
37                ProjectSetSelectItem::from_prost(
38                    proto,
39                    params.eval_error_report.clone(),
40                    params.env.config().developer.chunk_size,
41                )
42            })
43            .try_collect()?;
44        let watermark_derivations = MultiMap::from_iter(
45            node.get_watermark_input_cols()
46                .iter()
47                .map(|idx| *idx as usize)
48                .zip_eq_fast(
49                    node.get_watermark_expr_indices()
50                        .iter()
51                        .map(|idx| *idx as usize),
52                ),
53        );
54        let nondecreasing_expr_indices = node
55            .get_nondecreasing_exprs()
56            .iter()
57            .map(|idx| *idx as usize)
58            .collect();
59
60        let chunk_size = params.env.config().developer.chunk_size;
61        let exec = ProjectSetExecutor::new(
62            params.actor_context,
63            input,
64            select_list,
65            chunk_size,
66            watermark_derivations,
67            nondecreasing_expr_indices,
68            params.eval_error_report,
69        );
70        Ok((params.info, exec).into())
71    }
72}
risingwave_stream/from_proto/project_set.rs

risingwave_stream/from_proto/
project_set.rs
