mod.rs

// 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.

//! This module contains a query optimizer that operates against a logical plan and applies
//! some simple rules to a logical plan, such as "Projection Push Down" and "Type Coercion".

#![allow(clippy::module_inception)]
pub mod common_subexpr_eliminate;
pub mod eliminate_limit;
pub mod filter_push_down;
pub mod limit_push_down;
pub mod optimizer;
pub mod projection_push_down;
pub mod simplify_expressions;
pub mod single_distinct_to_groupby;
pub mod to_approx_perc;
pub mod utils;