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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.
//! This module contains a query optimizer that operates against a physical plan and applies
//! rules to a physical plan, such as "Repartition".
pub mod aggregate_statistics;
pub mod coalesce_batches;
pub mod hash_build_probe_order;
pub mod merge_exec;
pub mod optimizer;
pub mod pruning;
pub mod repartition;
mod utils;