risingwave_frontend/optimizer/plan_node/generic/
postgres_query.rs

1// Copyright 2024 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 educe::Educe;
16use risingwave_common::catalog::{ColumnDesc, ColumnId, Schema};
17
18use super::GenericPlanNode;
19use crate::optimizer::optimizer_context::OptimizerContextRef;
20use crate::optimizer::property::FunctionalDependencySet;
21
22#[derive(Debug, Clone, Educe)]
23#[educe(PartialEq, Eq, Hash)]
24pub struct PostgresQuery {
25    pub schema: Schema,
26    pub hostname: String,
27    pub port: String,
28    pub username: String,
29    pub password: String,
30    pub database: String,
31    pub query: String,
32    pub ssl_mode: Option<String>,
33    pub ssl_root_cert: Option<String>,
34
35    #[educe(PartialEq(ignore))]
36    #[educe(Hash(ignore))]
37    pub ctx: OptimizerContextRef,
38}
39
40impl GenericPlanNode for PostgresQuery {
41    fn schema(&self) -> Schema {
42        self.schema.clone()
43    }
44
45    fn stream_key(&self) -> Option<Vec<usize>> {
46        None
47    }
48
49    fn ctx(&self) -> OptimizerContextRef {
50        self.ctx.clone()
51    }
52
53    fn functional_dependency(&self) -> FunctionalDependencySet {
54        FunctionalDependencySet::new(self.schema.len())
55    }
56}
57
58impl PostgresQuery {
59    pub fn columns(&self) -> Vec<ColumnDesc> {
60        self.schema
61            .fields
62            .iter()
63            .enumerate()
64            .map(|(i, f)| {
65                ColumnDesc::named(f.name.clone(), ColumnId::new(i as i32), f.data_type.clone())
66            })
67            .collect()
68    }
69}
risingwave_frontend/optimizer/plan_node/generic/postgres_query.rs

risingwave_frontend/optimizer/plan_node/generic/
postgres_query.rs
