risingwave_frontend/optimizer/rule/
add_logstore_rule.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 crate::optimizer::plan_node::{Stream, StreamPlanRef as PlanRef, StreamSyncLogStore};
16use crate::optimizer::rule::{BoxedRule, Rule};
17
18pub struct AddLogstoreRule {}
19
20impl Rule<Stream> for AddLogstoreRule {
21    fn apply(&self, plan: PlanRef) -> Option<PlanRef> {
22        plan.as_stream_hash_join()?;
23        let log_store_plan = StreamSyncLogStore::new(plan);
24        Some(log_store_plan.into())
25    }
26}
27
28impl AddLogstoreRule {
29    pub fn create() -> BoxedRule<Stream> {
30        Box::new(Self {})
31    }
32}