Make postgresql case insensitive

src/NPoco.Abstractions/IDatabaseType.cs

@@ -38,5 +38,7 @@ public interface IDatabaseType
         void PreExecute(DbCommand cmd);
         object ProcessDefaultMappings(PocoColumn pocoColumn, object value);
         bool UseColumnAliases();
+
+        bool EscapeTableColumAliasNames { get; set; }
     }
 }

src/NPoco/DatabaseType.cs

@@ -32,6 +32,8 @@ public abstract partial class DatabaseType : IDatabaseType
 
         readonly Dictionary<Type, DbType> typeMap;
 
+        public bool EscapeTableColumAliasNames { get; set; } = true;
+
         public DatabaseType()
         {
             typeMap = new Dictionary<Type, DbType>();
@@ -259,7 +261,7 @@ public virtual async Task InsertBulkAsync<T>(IDatabase db, IEnumerable<T> pocos,
         /// <param name="typeName"></param>
         /// <param name="providerName"></param>
         /// <returns></returns>
-        public static DatabaseType Resolve(string typeName, string providerName)
+        public static DatabaseType Resolve(string typeName, string providerName, bool escapeTableColumAliasNames = true)
         {
             // Try using type name first (more reliable)
             if (typeName.StartsWith("MySql"))

src/NPoco/DatabaseTypes/PostgreSQLDatabaseType.cs

@@ -23,17 +23,20 @@ public override object MapParameterValue(object value)
 
         public override string EscapeSqlIdentifier(string str)
         {
-            return string.Format("\"{0}\"", str);
+            return EscapeTableColumAliasNames ? string.Format("\"{0}\"", str) : str;
         }
-        
+
         private void AdjustSqlInsertCommandText(DbCommand cmd, string primaryKeyName)
         {
-            cmd.CommandText += string.Format(" returning {0} as NewID", EscapeSqlIdentifier(primaryKeyName));
+            if (primaryKeyName != "ID")
+            {
+                cmd.CommandText += string.Format(" returning {0} as NewID", EscapeSqlIdentifier(primaryKeyName));
+            }
         }
 
         public override object ExecuteInsert<T>(IDatabase db, DbCommand cmd, string primaryKeyName, bool useOutputClause, T poco, object[] args)
         {
-            if (primaryKeyName != null)
+            if (!string.IsNullOrEmpty(primaryKeyName))
             {
                 AdjustSqlInsertCommandText(cmd, primaryKeyName);
                 return ((IDatabaseHelpers)db).ExecuteScalarHelper(cmd);
@@ -62,7 +65,7 @@ public override string GetParameterPrefix(string connectionString)
 
         public override string GetProviderName()
         {
-            return "Npgsql2";
+            return "Npgsql";
         }
     }
 }

test/NPoco.Tests/Common/InMemoryDatabase.cs

@@ -8,17 +8,20 @@ public class InMemoryDatabase : TestDatabase
         public InMemoryDatabase()
         {
             DbType = DatabaseType.SQLite;
-            ConnectionString = "Data Source=:memory:;Version=3;";
+            var builder = new Microsoft.Data.Sqlite.SqliteConnectionStringBuilder()
+            {
+                Mode = Microsoft.Data.Sqlite.SqliteOpenMode.Memory
+            };
+            ConnectionString = builder.ConnectionString; // "Data Source=:memory:;Version=3;";
             ProviderName = DatabaseType.SQLite.GetProviderName();
-
-            RecreateDataBase();
+
             EnsureSharedConnectionConfigured();
+            RecreateDataBase();
         }
 
         public override void EnsureSharedConnectionConfigured()
         {
             if (Connection != null) return;
-
 
             lock (_syncRoot)
             {