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JonPSmithJonPSmith
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Added benchmark to test ways to 'clean' a PostgreSQL db
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‎BenchmarkPostgreSql/BenchmarkPostgreSql.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net6.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="BenchmarkDotNet" Version="0.13.1" />
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<PackageReference Include="BenchmarkDotNet.Annotations" Version="0.13.1" />
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<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.0" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\DataLayer\DataLayer.csproj" />
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<ProjectReference Include="..\TestSupport\TestSupport.csproj" />
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<ProjectReference Include="..\Test\Test.csproj" />
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</ItemGroup>
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</Project>

‎BenchmarkPostgreSql/Program.cs‎

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using BenchmarkDotNet.Attributes;
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using BenchmarkDotNet.Running;
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using DataLayer.BookApp;
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using DataLayer.BookApp.EfCode;
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using Microsoft.EntityFrameworkCore;
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using Npgsql;
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using Test.Helpers;
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using TestSupport.EfHelpers;
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using TestSupport.Helpers;
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public class Program
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{
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private const string ConnectionString = "Host=localhost;Username=test;Password=test";
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private NpgsqlConnection _conn;
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private BookContext _context;
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[GlobalSetup]
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public void Setup()
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{
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NpgsqlConnection.ClearAllPools();
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var options = this.CreatePostgreSqlUniqueDatabaseOptions<BookContext>();
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_context = new BookContext(options);
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_context.Database.EnsureCreated();
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_conn = new NpgsqlConnection(_context.Database.GetDbConnection().ConnectionString);
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_conn.Open();
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}
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//[IterationSetup]
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//public void CreateTables()
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//{
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// _context.Database.EnsureCreated();
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//}
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[Benchmark]
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public void DropPublicSchemaWithEnsureCreated()
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{
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var dropPublicSchemaBatch = new NpgsqlBatch(_conn)
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{
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BatchCommands =
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{
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new ("DROP SCHEMA public CASCADE"),
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new ("CREATE SCHEMA public"),
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new ("GRANT ALL ON SCHEMA public TO postgres"),
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new ("GRANT ALL ON SCHEMA public TO public")
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}
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};
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dropPublicSchemaBatch.ExecuteNonQuery();
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_context.Database.EnsureCreated();
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}
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[Benchmark]
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public void DropAllSchemasWithEnsureCreated()
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{
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var dropPublicSchemaCommand = new NpgsqlCommand
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{
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Connection = _conn,
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CommandText = @"
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DO $$
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DECLARE
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r RECORD;
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BEGIN
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FOR r IN (SELECT nspname FROM pg_namespace WHERE nspname NOT IN ('pg_toast', 'pg_catalog', 'information_schema'))
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LOOP
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EXECUTE 'DROP SCHEMA ' || quote_ident(r.nspname) || ' CASCADE';
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END LOOP;
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EXECUTE 'CREATE SCHEMA public';
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END $$"
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};
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dropPublicSchemaCommand.ExecuteNonQuery();
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_context.Database.EnsureCreated();
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}
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[Benchmark]
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public void EnsureClean()
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{
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_context.Database.EnsureClean();
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}
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static void Main(string[] args) => BenchmarkRunner.Run<Program>();
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}

‎BenchmarkPostgreSql/appsettings.json‎

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{
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"ConnectionStrings": {
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"PostgreSqlConnection": "host=localhost;Database=TestSupportBenchmark-Test;Username=postgres;Password=LetMeIn"
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}
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}
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‎EfCoreInAction.Test.sln‎

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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TestFromSqlRaw", "TestFromSqlRaw\TestFromSqlRaw.csproj", "{AADA2740-B6C5-4915-8705-4AD3B40F00D8}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BenchmarkPostgreSql", "BenchmarkPostgreSql\BenchmarkPostgreSql.csproj", "{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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{AADA2740-B6C5-4915-8705-4AD3B40F00D8}.Release|x64.Build.0 = Release|Any CPU
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{AADA2740-B6C5-4915-8705-4AD3B40F00D8}.Release|x86.ActiveCfg = Release|Any CPU
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{AADA2740-B6C5-4915-8705-4AD3B40F00D8}.Release|x86.Build.0 = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|ARM.ActiveCfg = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|ARM.Build.0 = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|ARM64.ActiveCfg = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|ARM64.Build.0 = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|x64.ActiveCfg = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|x64.Build.0 = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|x86.ActiveCfg = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Debug|x86.Build.0 = Debug|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|Any CPU.Build.0 = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|ARM.ActiveCfg = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|ARM.Build.0 = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|ARM64.ActiveCfg = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|ARM64.Build.0 = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|x64.ActiveCfg = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|x64.Build.0 = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|x86.ActiveCfg = Release|Any CPU
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{E12C6C5C-699B-4361-B717-7E4B40A9C1E1}.Release|x86.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE

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