diff --git a/Todo.md b/Todo.md
index bcd1054..de3b18e 100644
--- a/Todo.md
+++ b/Todo.md
@@ -3,6 +3,4 @@
 - Add is_valid() method to connection & connection_impl
 - Read in entity fields
 - Add special handling for update in backends
-- Add PostgreSQL backend
-- Add MySQL/MariaDB backend
 - Add ODBC/SQL Server backend
\ No newline at end of file
diff --git a/backends/postgres/src/postgres_connection.cpp b/backends/postgres/src/postgres_connection.cpp
index 1ebb321..b51b34f 100644
--- a/backends/postgres/src/postgres_connection.cpp
+++ b/backends/postgres/src/postgres_connection.cpp
@@ -145,7 +145,7 @@ sql::record postgres_connection::describe(const std::string &table)
   while (reader.fetch()) {
     char *end = nullptr;
     // Todo: Handle error
-    auto index = strtoul(reader.column(0), &end, 10);
+    auto index = strtoul(reader.column(0), &end, 10) - 1;
     std::string name = reader.column(1);
 
     // Todo: extract size
@@ -156,7 +156,7 @@ sql::record postgres_connection::describe(const std::string &table)
       null_opt = sql::null_option::NOT_NULL;
     }
     // f.default_value(res->column(4));
-    prototype.append({name, type, utils::null_attributes, null_opt});
+    prototype.append({name, type, utils::null_attributes, null_opt, index});
   }
 
   return std::move(prototype);
diff --git a/backends/tests/SessionRecordTest.cpp b/backends/tests/SessionRecordTest.cpp
index d4daa96..8245e08 100644
--- a/backends/tests/SessionRecordTest.cpp
+++ b/backends/tests/SessionRecordTest.cpp
@@ -18,6 +18,7 @@ public:
     drop_table_if_exists("flight");
     drop_table_if_exists("airplane");
     drop_table_if_exists("person");
+    drop_table_if_exists("quotes");
   }
 
 protected:
@@ -34,7 +35,7 @@ private:
 
 using namespace matador::sql;
 
-TEST_CASE_METHOD(SessionRecordFixture, " Create and drop table statement", "[session record]")
+TEST_CASE_METHOD(SessionRecordFixture, " Create and drop table statement", "[session][record]")
 {
   REQUIRE(!ses.table_exists("person"));
   ses.create()
@@ -54,7 +55,7 @@ TEST_CASE_METHOD(SessionRecordFixture, " Create and drop table statement", "[ses
   REQUIRE(!ses.table_exists("person"));
 }
 
-TEST_CASE_METHOD(SessionRecordFixture, " Create and drop table statement with foreign key", "[session record]")
+TEST_CASE_METHOD(SessionRecordFixture, " Create and drop table statement with foreign key", "[session][record]")
 {
   ses.create()
   .table("airplane", {
@@ -89,7 +90,7 @@ TEST_CASE_METHOD(SessionRecordFixture, " Create and drop table statement with fo
   REQUIRE(!ses.table_exists("airplane"));
 }
 
-TEST_CASE_METHOD(SessionRecordFixture, " Execute insert record statement", "[session record]")
+TEST_CASE_METHOD(SessionRecordFixture, " Execute insert record statement", "[session][record]")
 {
   ses.create()
   .table("person", {
@@ -128,7 +129,7 @@ TEST_CASE_METHOD(SessionRecordFixture, " Execute insert record statement", "[ses
   .execute();
 }
 
-TEST_CASE_METHOD(SessionRecordFixture, " Execute insert record statement with foreign key", "[session record]")
+TEST_CASE_METHOD(SessionRecordFixture, " Execute insert record statement with foreign key", "[session][record]")
 {
   ses.create()
   .table("airplane", {
@@ -168,7 +169,7 @@ TEST_CASE_METHOD(SessionRecordFixture, " Execute insert record statement with fo
   REQUIRE(!ses.table_exists("airplane"));
 }
 
-TEST_CASE_METHOD(SessionRecordFixture, " Execute update record statement", "[session record]")
+TEST_CASE_METHOD(SessionRecordFixture, " Execute update record statement", "[session][record]")
 {
   ses.create()
   .table("person", {
@@ -214,7 +215,7 @@ TEST_CASE_METHOD(SessionRecordFixture, " Execute update record statement", "[ses
   ses.drop().table("person").execute();
 }
 
-TEST_CASE_METHOD(SessionRecordFixture, " Execute select statement", "[session record]")
+TEST_CASE_METHOD(SessionRecordFixture, " Execute select statement", "[session][record]")
 {
   ses.create()
   .table("person", {
@@ -257,7 +258,7 @@ TEST_CASE_METHOD(SessionRecordFixture, " Execute select statement", "[session re
   ses.drop().table("person").execute();
 }
 
-TEST_CASE_METHOD(SessionRecordFixture, " Execute select statement with order by", "[session record]")
+TEST_CASE_METHOD(SessionRecordFixture, " Execute select statement with order by", "[session][record]")
 {
   ses.create()
   .table("person", {
@@ -291,7 +292,7 @@ TEST_CASE_METHOD(SessionRecordFixture, " Execute select statement with order by"
   ses.drop().table("person").execute();
 }
 
-TEST_CASE_METHOD(SessionRecordFixture, " Execute select statement with group by and order by", "[session record]")
+TEST_CASE_METHOD(SessionRecordFixture, " Execute select statement with group by and order by", "[session][record]")
 {
   ses.create()
   .table("person", {
@@ -330,7 +331,7 @@ TEST_CASE_METHOD(SessionRecordFixture, " Execute select statement with group by
   ses.drop().table("person").execute();
 }
 
-TEST_CASE_METHOD(SessionRecordFixture, " Execute delete statement", "[session record]")
+TEST_CASE_METHOD(SessionRecordFixture, " Execute delete statement", "[session][record]")
 {
   ses.create()
   .table("person", {
@@ -359,3 +360,37 @@ TEST_CASE_METHOD(SessionRecordFixture, " Execute delete statement", "[session re
 
   ses.drop().table("person").execute();
 }
+
+TEST_CASE_METHOD(SessionRecordFixture, " Test quoted identifier", "[session][record]") {
+  ses.create()
+  .table("quotes", {
+    make_column<std::string>("from", 255),
+    make_column<std::string>("to", 255)
+  }).execute();
+
+  // check table description
+  std::vector<std::string> columns = { "from", "to"};
+  std::vector<data_type_t> types = {data_type_t::type_varchar, data_type_t::type_varchar};
+  auto fields = ses.describe_table("quotes");
+
+  for (const auto &field : fields) {
+    REQUIRE(field.name() == columns[field.index()]);
+    REQUIRE(field.type() == types[field.index()]);
+  }
+
+  ses.insert().into("quotes", {"from", "to"}).values({"Berlin", "London"}).execute();
+
+  auto res = ses.select({"from", "to"}).from("quotes").fetch_one();
+
+  REQUIRE("Berlin" == res.at("from").str());
+  REQUIRE("London" == res.at("to").str());
+
+  ses.update("quotes").set({{"from", "Hamburg"}, {"to", "New York"}}).where("from"_col == "Berlin").execute();
+
+  res = ses.select({"from", "to"}).from("quotes").fetch_one();
+
+  REQUIRE("Hamburg" == res.at("from").str());
+  REQUIRE("New York" == res.at("to").str());
+
+  ses.drop().table("quotes").execute();
+}
\ No newline at end of file
diff --git a/include/matador/sql/column.hpp b/include/matador/sql/column.hpp
index dfcbf29..9b8a4e1 100644
--- a/include/matador/sql/column.hpp
+++ b/include/matador/sql/column.hpp
@@ -37,7 +37,7 @@ public:
   : column(std::move(name), data_type_traits<Type>::builtin_type(attr.size()), attr, null_opt)
   {}
 
-  column(std::string name, data_type_t type, utils::field_attributes attr, null_option null_opt);
+  column(std::string name, data_type_t type, utils::field_attributes attr, null_option null_opt, size_t index = 0);
 
   template<typename Type>
   column(std::string name, std::string ref_table, std::string ref_column, utils::field_attributes attr, null_option null_opt)
diff --git a/include/matador/sql/connection.hpp b/include/matador/sql/connection.hpp
index 4ca909a..885bb6d 100644
--- a/include/matador/sql/connection.hpp
+++ b/include/matador/sql/connection.hpp
@@ -39,10 +39,13 @@ public:
 
   statement prepare(query_context &&query) const;
 
+  const class dialect& dialect() const;
+
 private:
   connection_info connection_info_;
   std::unique_ptr<connection_impl> connection_;
   utils::logger logger_;
+  const class dialect &dialect_;
 };
 
 }
diff --git a/include/matador/sql/record.hpp b/include/matador/sql/record.hpp
index 60bbbeb..08d148b 100644
--- a/include/matador/sql/record.hpp
+++ b/include/matador/sql/record.hpp
@@ -24,8 +24,8 @@ public:
   record() = default;
   record(std::initializer_list<column> columns);
   explicit record(const std::vector<column> &columns);
-  record(const record&) = default;
-  record& operator=(const record&) = default;
+  record(const record &x);
+  record& operator=(const record &x);
   record(record&&) noexcept = default;
   record& operator=(record&&) noexcept = default;
   ~record() = default;
@@ -45,8 +45,8 @@ public:
 
   void append(column col);
 
-  bool has_primary_key() const;
-  const column& primary_key() const;
+  [[nodiscard]] bool has_primary_key() const;
+  [[nodiscard]] const column& primary_key() const;
 
   [[nodiscard]] const std::vector<column>& columns() const;
 
diff --git a/src/sql/column.cpp b/src/sql/column.cpp
index 15496c6..06dc701 100644
--- a/src/sql/column.cpp
+++ b/src/sql/column.cpp
@@ -16,8 +16,8 @@ column::column(std::string name, std::string alias)
   : name_(std::move(name)), attributes_(utils::null_attributes), alias_(std::move(alias))
 {}
 
-column::column(std::string name, data_type_t type, utils::field_attributes attr, null_option null_opt)
-  : name_(std::move(name)), type_(type), attributes_(attr), null_option_(null_opt)
+column::column(std::string name, data_type_t type, utils::field_attributes attr, null_option null_opt, size_t index)
+  : name_(std::move(name)), index_(index), type_(type), attributes_(attr), null_option_(null_opt)
 {}
 
 column::column(std::string name, data_type_t type, size_t index, std::string ref_table, std::string ref_column,
diff --git a/src/sql/connection.cpp b/src/sql/connection.cpp
index 60b3c93..b18526b 100644
--- a/src/sql/connection.cpp
+++ b/src/sql/connection.cpp
@@ -11,6 +11,7 @@ namespace matador::sql {
 connection::connection(connection_info info)
 : connection_info_(std::move(info))
 , logger_(stdout, "SQL")
+, dialect_(backend_provider::instance().connection_dialect(info.type))
 {
   connection_.reset(backend_provider::instance().create_connection(connection_info_.type, connection_info_));
 }
@@ -22,6 +23,7 @@ connection::connection(const std::string& dns)
 connection::connection(const connection &x)
 : connection_info_(x.connection_info_)
 , logger_(x.logger_)
+, dialect_(x.dialect_)
 {
   if (x.connection_) {
     throw std::runtime_error("couldn't copy connection with valid connection impl");
@@ -93,4 +95,9 @@ statement connection::prepare(query_context &&query) const
   return statement(connection_->prepare(std::move(query)), logger_);
 }
 
+const class dialect &connection::dialect() const
+{
+  return dialect_;
+}
+
 }
diff --git a/src/sql/record.cpp b/src/sql/record.cpp
index 10666d0..867807c 100644
--- a/src/sql/record.cpp
+++ b/src/sql/record.cpp
@@ -16,6 +16,30 @@ record::record(const std::vector<column> &columns)
   init();
 }
 
+record::record(const record &x)
+: columns_(x.columns_)
+, pk_index_(x.pk_index_)
+{
+  for (auto& col : columns_) {
+    add_to_map(col, col.index());
+  }
+}
+
+record &record::operator=(const record &x)
+{
+  if (&x == this) {
+    return *this;
+  }
+
+  columns_ = x.columns_;
+  columns_by_name_.clear();
+  pk_index_ = x.pk_index_;
+  for (auto& col : columns_) {
+    add_to_map(col, col.index());
+  }
+  return *this;
+}
+
 const std::vector<column> &record::columns() const
 {
   return columns_;
@@ -37,6 +61,7 @@ const column &record::primary_key() const
 
 const column &record::at(const std::string &name) const
 {
+  auto ref = columns_by_name_.at(name).first;
   return columns_by_name_.at(name).first;
 }