| /* |
| * 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. |
| */ |
| |
| #include "insert.hh" |
| |
| int |
| main(int argc, char** argv) |
| { |
| std::string connectionString; |
| if (!std::getenv("PGDATABASE")) |
| { |
| connectionString += "dbname=afs_benchmark"; |
| } |
| auto connection = PQconnectdb(connectionString.c_str()); |
| ConnectionFinisher connectionFinisher(connection); |
| if (PQstatus(connection) != CONNECTION_OK) |
| { |
| std::cerr << "failed to connect: " << PQerrorMessage(connection) << std::endl; |
| return EXIT_FAILURE; |
| } |
| |
| { |
| auto result = PQexec(connection, "DROP TABLE IF EXISTS data_insert"); |
| ResultClearner resultClearner(result); |
| if (PQresultStatus(result) != PGRES_COMMAND_OK) |
| { |
| std::cerr << "failed to drop: " << PQerrorMessage(connection) << std::endl; |
| return EXIT_FAILURE; |
| } |
| } |
| |
| { |
| auto result = PQexec(connection, "CREATE TABLE data_insert (LIKE data)"); |
| ResultClearner resultClearner(result); |
| if (PQresultStatus(result) != PGRES_COMMAND_OK) |
| { |
| std::cerr << "failed to create: " << PQerrorMessage(connection) << std::endl; |
| return EXIT_FAILURE; |
| } |
| } |
| |
| std::vector<std::vector<Value>> records; |
| { |
| auto result = PQexec(connection, "SELECT * FROM data"); |
| ResultClearner resultClearner(result); |
| if (PQresultStatus(result) != PGRES_TUPLES_OK) |
| { |
| std::cerr << "failed to select: " << PQerrorMessage(connection) << std::endl; |
| return EXIT_FAILURE; |
| } |
| auto nTuples = PQntuples(result); |
| auto nFields = PQnfields(result); |
| for (int iTuple = 0; iTuple < nTuples; iTuple++) |
| { |
| std::vector<Value> values; |
| for (int iField = 0; iField < nFields; iField++) |
| { |
| if (!append_value(values, result, iTuple, iField)) |
| { |
| return EXIT_FAILURE; |
| } |
| } |
| records.push_back(std::move(values)); |
| } |
| } |
| |
| auto before = std::chrono::steady_clock::now(); |
| { |
| std::ostringstream insert; |
| insert << "INSERT INTO data_insert VALUES "; |
| auto nRecords = records.size(); |
| for (size_t iRecord = 0; iRecord < nRecords; ++iRecord) |
| { |
| const auto& values = records[iRecord]; |
| if (iRecord > 0) |
| { |
| insert << ", "; |
| } |
| insert << "("; |
| auto nValues = values.size(); |
| for (size_t iValue = 0; iValue < nValues; ++iValue) |
| { |
| if (iValue > 0) |
| { |
| insert << ", "; |
| } |
| const auto& value = values[iValue]; |
| if (std::holds_alternative<std::monostate>(value)) |
| { |
| insert << "null"; |
| } |
| else if (std::holds_alternative<int32_t>(value)) |
| { |
| insert << std::get<int32_t>(value); |
| } |
| else if (std::holds_alternative<std::string>(value)) |
| { |
| insert << "'"; |
| insert << std::get<std::string>(value); |
| insert << "'"; |
| } |
| } |
| insert << ")"; |
| } |
| auto result = PQexec(connection, insert.str().c_str()); |
| ResultClearner resultClearner(result); |
| if (PQresultStatus(result) != PGRES_COMMAND_OK) |
| { |
| std::cerr << "failed to insert: " << PQerrorMessage(connection) << std::endl; |
| return EXIT_FAILURE; |
| } |
| } |
| auto elapsedTime = std::chrono::duration_cast<std::chrono::milliseconds>( |
| std::chrono::steady_clock::now() - before) |
| .count(); |
| printf("%.3f\n", elapsedTime / 1000.0); |
| |
| return EXIT_SUCCESS; |
| } |