Making the managed list partitions better able to do migrations acros…

…s process restarts. Bumps to 7.11.3

Directory.Build.props

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
     <PropertyGroup>
-        <Version>7.11.2</Version>
+        <Version>7.11.3</Version>
         <LangVersion>12.0</LangVersion>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>

src/Weasel.Postgresql.Tests/Tables/partitioning/managed_list_partitions.cs

@@ -119,6 +119,35 @@ public async Task apply_additive_migration()
         partitioning.Partitions.Select(x => x.Suffix).OrderBy(x => x)
             .ShouldBe(new []{"blue", "green", "purple", "red"});
     }
+
+    [Fact]
+    public async Task apply_additive_migration_2()
+    {
+        var database = new ManagedListDatabase();
+        var partitions = new Dictionary<string, string> { { "red", "red" }, { "green", "green" }, { "blue", "blue" }, };
+        await database.Partitions.ResetValues(database, partitions, CancellationToken.None);
+
+        await database.ApplyAllConfiguredChangesToDatabaseAsync();
+
+        // RECREATE a new instance of the database
+        database = new ManagedListDatabase();
+
+        await database.Partitions.AddPartitionToAllTables(database, "purple", "purple", CancellationToken.None);
+
+        var tables = await database.FetchExistingTablesAsync();
+
+        var teams = tables.Single(x => x.Identifier.Name == "teams");
+        var partitioning = teams.Partitioning.ShouldBeOfType<ListPartitioning>();
+        partitioning.HasExistingDefault.ShouldBeFalse();
+        partitioning.Partitions.Select(x => x.Suffix).OrderBy(x => x)
+            .ShouldBe(new []{"blue", "green", "purple", "red"});
+
+        var players = tables.Single(x => x.Identifier.Name == "players");
+        partitioning = players.Partitioning.ShouldBeOfType<ListPartitioning>();
+        partitioning.HasExistingDefault.ShouldBeFalse();
+        partitioning.Partitions.Select(x => x.Suffix).OrderBy(x => x)
+            .ShouldBe(new []{"blue", "green", "purple", "red"});
+    }
 }
 
 public class ManagedListDatabase: PostgresqlDatabase

src/Weasel.Postgresql/Tables/Partitioning/ManagedListPartitions.cs

@@ -83,6 +83,9 @@ public async Task AddPartitionToAllTables(PostgresqlDatabase database, string va
         await using var conn = database.CreateConnection();
         await conn.OpenAsync(token).ConfigureAwait(false);
 
+        // This is idempotent, so just do it here
+        await InitializeAsync(conn, token).ConfigureAwait(false);
+
         await AddPartitionToAllTables(conn, token, value, suffix).ConfigureAwait(false);
 
         var tables = database