OmniSciDB  5ade3759e0
FromTableReordering.h
Go to the documentation of this file.
1 /*
2  * Copyright 2018, OmniSci, Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #pragma once
18 
19 #include "InputMetadata.h"
20 #include "RelAlgExecutionUnit.h"
21 
22 // Returns a FROM permutation for the given join qualifiers and table sizes.
23 std::vector<size_t> get_node_input_permutation(
24  const JoinQualsPerNestingLevel& left_deep_join_quals,
25  const std::vector<InputTableInfo>& table_infos,
26  const Executor* executor);
std::vector< JoinCondition > JoinQualsPerNestingLevel
std::vector< size_t > get_node_input_permutation(const JoinQualsPerNestingLevel &left_deep_join_quals, const std::vector< InputTableInfo > &table_infos, const Executor *executor)
Execution unit for relational algebra. It&#39;s a low-level description of any relational algebra operati...