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logical_node.rs
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29 lines (25 loc) · 1.17 KB
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
use pyo3::{PyObject, PyResult, Python};
use crate::sql::logical::PyLogicalPlan;
/// Representation of a `LogicalNode` in the in overall `LogicalPlan`
/// any "node" shares these common traits in common.
pub trait LogicalNode {
/// The input plan to the current logical node instance.
fn inputs(&self) -> Vec<PyLogicalPlan>;
fn to_variant(&self, py: Python) -> PyResult<PyObject>;
}