diff --git a/Framework/Core/include/Framework/ASoA.h b/Framework/Core/include/Framework/ASoA.h
index f21decd0d5c45..e7fc8fddd5a9d 100644
--- a/Framework/Core/include/Framework/ASoA.h
+++ b/Framework/Core/include/Framework/ASoA.h
@@ -213,8 +213,6 @@ template <typename D, typename... Cs>
 struct TableMetadata {
   using columns = framework::pack<Cs...>;
   using persistent_columns_t = framework::selected_pack<soa::is_persistent_column_t, Cs...>;
-  using external_index_columns_t = framework::selected_pack<soa::is_external_index_t, Cs...>;
-  using internal_index_columns_t = framework::selected_pack<soa::is_self_index_t, Cs...>;
 
   template <typename Key, typename... PCs>
   static consteval std::array<bool, sizeof...(PCs)> getMap(framework::pack<PCs...>)
@@ -811,9 +809,6 @@ concept is_dynamic_column = requires(C& c) {
 template <typename C>
 concept is_marker_column = requires { &C::mark; };
 
-template <typename T>
-using is_dynamic_t = std::conditional_t<is_dynamic_column<T>, std::true_type, std::false_type>;
-
 template <typename T>
 concept is_column = is_persistent_column<T> || is_dynamic_column<T> || is_indexing_column<T> || is_marker_column<T>;
 
@@ -1036,6 +1031,23 @@ concept can_bind = requires(T&& t) {
 template <typename... C>
 concept has_index = (is_indexing_column<C> || ...);
 
+template <is_index_column C>
+  requires(!is_self_index_column<C>)
+consteval auto getBinding() -> typename C::binding_t
+{
+}
+
+template <typename C>
+consteval auto getBinding() -> void
+{
+}
+
+template <typename T, typename... Cs>
+consteval auto inBindings(framework::pack<Cs...>)
+{
+  return framework::has_type_at_v<T>(framework::pack<decltype(getBinding<Cs>())...>{});
+}
+
 template <typename D, typename O, typename IP, typename... C>
 struct TableIterator : IP, C... {
  public:
@@ -1043,13 +1055,10 @@ struct TableIterator : IP, C... {
   using policy_t = IP;
   using all_columns = framework::pack<C...>;
   using persistent_columns_t = framework::selected_pack<soa::is_persistent_column_t, C...>;
-  using external_index_columns_t = framework::selected_pack<soa::is_external_index_t, C...>;
-  using internal_index_columns_t = framework::selected_pack<soa::is_self_index_t, C...>;
-  using bindings_pack_t = decltype([]<typename... Cs>(framework::pack<Cs...>) -> framework::pack<typename Cs::binding_t...> {}(external_index_columns_t{})); // decltype(extractBindings(external_index_columns_t{}));
 
   TableIterator(arrow::ChunkedArray* columnData[sizeof...(C)], IP&& policy)
     : IP{policy},
-      C(columnData[framework::has_type_at_v<C>(all_columns{})])...
+      C(columnData[framework::has_type_at_v<C>(framework::pack<C...>{})])...
   {
     bind();
   }
@@ -1057,7 +1066,7 @@ struct TableIterator : IP, C... {
   TableIterator(arrow::ChunkedArray* columnData[sizeof...(C)], IP&& policy)
     requires(has_index<C...>)
     : IP{policy},
-      C(columnData[framework::has_type_at_v<C>(all_columns{})])...
+      C(columnData[framework::has_type_at_v<C>(framework::pack<C...>{})])...
   {
     bind();
     // In case we have an index column might need to constrain the actual
@@ -1135,61 +1144,114 @@ struct TableIterator : IP, C... {
     return *this;
   }
 
-  template <typename... CL, typename TA>
-  void doSetCurrentIndex(framework::pack<CL...>, TA* current)
-  {
-    (CL::setCurrent(current), ...);
-  }
-
   template <typename CL>
   auto getCurrent() const
   {
     return CL::getCurrentRaw();
   }
 
-  template <typename... Cs>
-  auto getIndexBindingsImpl(framework::pack<Cs...>) const
-  {
-    return std::vector<o2::soa::Binding>{static_cast<Cs const&>(*this).getCurrentRaw()...};
-  }
-
   auto getIndexBindings() const
   {
-    return getIndexBindingsImpl(external_index_columns_t{});
+    std::vector<o2::soa::Binding> result;
+    (doGetIndexBindingImpl<C>(result), ...);
+    return result;
   }
 
   template <typename... TA>
   void bindExternalIndices(TA*... current)
   {
-    (doSetCurrentIndex(external_index_columns_t{}, current), ...);
+    ([this]<typename... Cs, typename TT>(framework::pack<Cs...>, TT* t) {
+      (doSetCurrentIndexImpl<Cs>(t), ...);
+    }(framework::pack<C...>{}, current),
+     ...);
   }
 
-  template <typename... Cs>
-  void doSetCurrentIndexRaw(framework::pack<Cs...> p, std::vector<o2::soa::Binding>&& ptrs)
+  void bindExternalIndicesRaw(std::vector<o2::soa::Binding>&& bindings)
   {
-    (Cs::setCurrentRaw(ptrs[framework::has_type_at_v<Cs>(p)]), ...);
+    (doSetCurrentIndexRawImpl<C>(bindings[framework::has_type_at_v<C>(framework::pack<C...>{})]), ...);
   }
 
-  template <typename... Cs, typename I>
-  void doSetCurrentInternal(framework::pack<Cs...>, I const* ptr)
+  template <typename I>
+  void bindInternalIndices(I const* table)
   {
     o2::soa::Binding b;
-    b.bind(ptr);
-    (Cs::setCurrentRaw(b), ...);
+    b.bind(table);
+    (doSetCurrentInternalImpl<C>(b), ...);
   }
 
-  void bindExternalIndicesRaw(std::vector<o2::soa::Binding>&& ptrs)
+ private:
+  /// Overloaded helpers for index manipulations
+  template <soa::is_index_column CL, typename TA>
+    requires(!soa::is_self_index_column<CL>)
+  void doSetCurrentIndexImpl(TA* current)
   {
-    doSetCurrentIndexRaw(external_index_columns_t{}, std::forward<std::vector<o2::soa::Binding>>(ptrs));
+    CL::setCurrent(current);
   }
 
-  template <typename I>
-  void bindInternalIndices(I const* table)
+  template <soa::is_column CL, typename TA>
+    requires(!soa::is_index_column<CL>)
+  void doSetCurrentIndexImpl(TA*)
+  {
+  }
+
+  template <soa::is_index_column CL>
+    requires(!soa::is_self_index_column<CL>)
+  auto doGetIndexBindingImpl(std::vector<o2::soa::Binding>& bindings) const
+  {
+    bindings.emplace_back(CL::getCurrentRaw());
+  }
+
+  template <soa::is_column CL>
+    requires(!soa::is_index_column<CL>)
+  auto doGetIndexBindingImpl(std::vector<o2::soa::Binding>& bindings) const
+  {
+    bindings.emplace_back();
+  }
+
+  template <soa::is_index_column CL>
+    requires(!soa::is_self_index_column<CL>)
+  void doSetCurrentIndexRawImpl(o2::soa::Binding const& b)
+  {
+    CL::setCurrentRaw(b);
+  }
+
+  template <soa::is_column CL>
+    requires(!soa::is_index_column<CL>)
+  void doSetCurrentIndexRawImpl(o2::soa::Binding const&)
+  {
+  }
+
+  template <soa::is_self_index_column CL>
+  void doSetCurrentInternalImpl(o2::soa::Binding const& b)
+  {
+    CL::setCurrentRaw(b);
+  }
+
+  template <soa::is_column CL>
+    requires(!soa::is_self_index_column<CL>)
+  void doSetCurrentInternalImpl(o2::soa::Binding const&)
+  {
+  }
+
+  /// Overloaded helpers for column binding
+  template <soa::is_persistent_column CL>
+  void doBind()
+  {
+    CL::mColumnIterator.mCurrentPos = &this->mRowIndex;
+  }
+
+  template <soa::is_dynamic_column CL>
+  void doBind()
+  {
+    bindDynamicColumn<CL>(typename CL::bindings_t{});
+  }
+
+  template <soa::is_column CL>
+    requires(!soa::is_persistent_column<CL> && !soa::is_dynamic_column<CL>)
+  void doBind()
   {
-    doSetCurrentInternal(internal_index_columns_t{}, table);
   }
 
- private:
   /// Helper to move at the end of columns which actually have an iterator.
   template <typename... PC>
   void doMoveToEnd(framework::pack<PC...>)
@@ -1202,12 +1264,7 @@ struct TableIterator : IP, C... {
   void bind()
   {
     using namespace o2::soa;
-    auto f = framework::overloaded{
-      [this]<soa::is_persistent_column T>(T*) -> void { T::mColumnIterator.mCurrentPos = &this->mRowIndex; },
-      [this]<soa::is_dynamic_column T>(T*) -> void { bindDynamicColumn<T>(typename T::bindings_t{}); },
-      [this]<typename T>(T*) -> void {},
-    };
-    (f(static_cast<C*>(nullptr)), ...);
+    (doBind<C>(), ...);
     if constexpr (has_index<C...>) {
       this->setIndices(this->getIndices());
       this->setOffsets(this->getOffsets());
@@ -1367,28 +1424,56 @@ static constexpr std::string getLabelFromTypeForKey(std::string const& key)
   O2_BUILTIN_UNREACHABLE();
 }
 
+template <soa::is_index_column CL, typename B>
+  requires(!soa::is_self_index_column<CL>)
+consteval static bool hasIndexToImpl()
+{
+  return o2::soa::is_binding_compatible_v<B, typename CL::binding_t>();
+}
+
+template <soa::is_column CL, typename B>
+  requires(!soa::is_index_column<CL>)
+consteval static bool hasIndexToImpl()
+{
+  return false;
+}
+
 template <typename B, typename... C>
 consteval static bool hasIndexTo(framework::pack<C...>&&)
 {
-  return (o2::soa::is_binding_compatible_v<B, typename C::binding_t>() || ...);
+  return (hasIndexToImpl<C, B>() || ...);
+}
+
+template <soa::is_index_column CL, typename B>
+  requires(!soa::is_self_index_column<CL>)
+consteval static bool hasSortedIndexToImpl()
+{
+  return CL::sorted && o2::soa::is_binding_compatible_v<B, typename CL::binding_t>();
+}
+
+template <soa::is_column CL, typename B>
+  requires(!soa::is_index_column<CL>)
+consteval static bool hasSortedIndexToImpl()
+{
+  return false;
 }
 
 template <typename B, typename... C>
 consteval static bool hasSortedIndexTo(framework::pack<C...>&&)
 {
-  return ((C::sorted && o2::soa::is_binding_compatible_v<B, typename C::binding_t>()) || ...);
+  return (hasSortedIndexToImpl<C, B>() || ...);
 }
 
 template <typename B, typename Z>
 consteval static bool relatedByIndex()
 {
-  return hasIndexTo<B>(typename Z::table_t::external_index_columns_t{});
+  return hasIndexTo<B>(typename Z::table_t::columns_t{});
 }
 
 template <typename B, typename Z>
 consteval static bool relatedBySortedIndex()
 {
-  return hasSortedIndexTo<B>(typename Z::table_t::external_index_columns_t{});
+  return hasSortedIndexTo<B>(typename Z::table_t::columns_t{});
 }
 } // namespace o2::soa
 
@@ -1716,17 +1801,12 @@ class Table
   using persistent_columns_t = decltype([]<typename... C>(framework::pack<C...>&&) -> framework::selected_pack<soa::is_persistent_column_t, C...> {}(columns_t{}));
   using column_types = decltype([]<typename... C>(framework::pack<C...>) -> framework::pack<typename C::type...> {}(persistent_columns_t{}));
 
-  using external_index_columns_t = decltype([]<typename... C>(framework::pack<C...>&&) -> framework::selected_pack<soa::is_external_index_t, C...> {}(columns_t{}));
-  using internal_index_columns_t = decltype([]<typename... C>(framework::pack<C...>&&) -> framework::selected_pack<soa::is_self_index_t, C...> {}(columns_t{}));
   template <typename IP>
   using base_iterator = decltype(base_iter<D, O, IP>(columns_t{}));
 
   template <typename IP, typename Parent, typename... T>
   struct TableIteratorBase : base_iterator<IP> {
     using columns_t = typename Parent::columns_t;
-    using external_index_columns_t = typename Parent::external_index_columns_t;
-    using bindings_pack_t = decltype([]<typename... C>(framework::pack<C...>) -> framework::pack<typename C::binding_t...> {}(external_index_columns_t{}));
-    // static constexpr const std::array<TableRef, sizeof...(T)> originals{T::ref...};
     static constexpr auto originals = Parent::originals;
     using policy_t = IP;
     using parent_t = Parent;
@@ -1815,33 +1895,34 @@ class Table
     template <typename TI>
     auto getId() const
     {
-      using decayed = std::decay_t<TI>;
-      if constexpr (framework::has_type<decayed>(bindings_pack_t{})) { // index to another table
-        constexpr auto idx = framework::has_type_at_v<decayed>(bindings_pack_t{});
-        return framework::pack_element_t<idx, external_index_columns_t>::getId();
-      } else if constexpr (std::same_as<decayed, Parent>) { // self index
-        return this->globalIndex();
-      } else if constexpr (is_indexing_column<decayed>) { // soa::Index<>
-        return this->globalIndex();
-      } else {
-        return static_cast<int32_t>(-1);
-      }
+      return static_cast<int32_t>(-1);
     }
 
-    template <typename CD, typename... CDArgs>
+    template <typename TI>
+      requires(std::same_as<std::decay_t<TI>, Parent> || is_indexing_column<std::decay_t<TI>>)
+    auto getId() const
+    {
+      return this->globalIndex();
+    }
+
+    template <typename TI>
+      requires(inBindings<std::decay_t<TI>>(typename Parent::all_columns{}) < framework::pack_size(typename Parent::all_columns{}))
+    auto getId() const
+    {
+      return inBindings<std::decay_t<TI>>(typename Parent::all_columns{});
+    }
+
+    template <soa::is_dynamic_column CD, typename... CDArgs>
     auto getDynamicColumn() const
     {
-      using decayed = std::decay_t<CD>;
-      static_assert(is_dynamic_t<decayed>(), "Requested column is not a dynamic column");
-      return static_cast<decayed>(*this).template getDynamicValue<CDArgs...>();
+      return static_cast<std::decay_t<CD>>(*this).template getDynamicValue<CDArgs...>();
     }
 
     template <typename B, typename CC>
+      requires(is_dynamic_column<CC> || is_persistent_column<CC>)
     auto getValue() const
     {
-      using COL = std::decay_t<CC>;
-      static_assert(is_dynamic_t<COL>() || soa::is_persistent_column<COL>, "Should be persistent or dynamic column with no argument that has a return type convertable to float");
-      return static_cast<B>(static_cast<COL>(*this).get());
+      return static_cast<B>(static_cast<std::decay_t<CC>>(*this).get());
     }
 
     template <typename B, typename... CCs>
@@ -2046,13 +2127,25 @@ class Table
 
   void bindInternalIndicesExplicit(o2::soa::Binding binding)
   {
-    doBindInternalIndicesExplicit(internal_index_columns_t{}, binding);
+    doBindInternalIndicesExplicit(columns_t{}, binding);
+  }
+
+  template <soa::is_self_index_column CL>
+  void doBindInternalIndicesExplicitImpl(o2::soa::Binding binding)
+  {
+    static_cast<CL>(mBegin).setCurrentRaw(binding);
+  }
+
+  template <soa::is_column CL>
+    requires(!soa::is_self_index_column<CL>)
+  void doBindInternalIndicesExplicitImpl(o2::soa::Binding)
+  {
   }
 
   template <typename... Cs>
   void doBindInternalIndicesExplicit(framework::pack<Cs...>, o2::soa::Binding binding)
   {
-    (static_cast<Cs>(mBegin).setCurrentRaw(binding), ...);
+    (doBindInternalIndicesExplicitImpl<Cs>(binding), ...);
   }
 
   void bindExternalIndicesRaw(std::vector<o2::soa::Binding>&& ptrs)
@@ -2069,7 +2162,7 @@ class Table
   template <typename T>
   void copyIndexBindings(T& dest) const
   {
-    doCopyIndexBindings(external_index_columns_t{}, dest);
+    doCopyIndexBindings(columns_t{}, dest);
   }
 
   auto select(framework::expressions::Filter const& f) const
@@ -3288,7 +3381,6 @@ class FilteredBase : public T
   using T::originals;
   using columns_t = typename T::columns_t;
   using persistent_columns_t = typename T::persistent_columns_t;
-  using external_index_columns_t = typename T::external_index_columns_t;
 
   using iterator = T::template iterator_template_o<FilteredIndexPolicy, self_t>;
   using unfiltered_iterator = T::template iterator_template_o<DefaultIndexPolicy, self_t>;
@@ -3434,7 +3526,7 @@ class FilteredBase : public T
   template <typename T1>
   void copyIndexBindings(T1& dest) const
   {
-    doCopyIndexBindings(external_index_columns_t{}, dest);
+    doCopyIndexBindings(columns_t{}, dest);
   }
 
   template <typename T1>
diff --git a/Framework/Core/include/Framework/GroupedCombinations.h b/Framework/Core/include/Framework/GroupedCombinations.h
index bdbddee871baa..2f2293593a1cb 100644
--- a/Framework/Core/include/Framework/GroupedCombinations.h
+++ b/Framework/Core/include/Framework/GroupedCombinations.h
@@ -34,14 +34,34 @@ auto interleaveTuples(std::tuple<T1s...>& t1, std::tuple<T2s...>& t2)
   return interleaveTuplesImpl(t1, t2, std::index_sequence_for<T1s...>());
 }
 
+template <soa::is_index_column T, soa::is_table G>
+  requires(!soa::is_self_index_column<T> && o2::soa::is_binding_compatible_v<std::decay_t<G>, typename std::decay_t<T>::binding_t>())
+consteval auto isIndexTo()
+{
+  return std::true_type{};
+}
+
+template <soa::is_index_column T, soa::is_table G>
+  requires(!soa::is_self_index_column<T> && !o2::soa::is_binding_compatible_v<std::decay_t<G>, typename std::decay_t<T>::binding_t>())
+consteval auto isIndexTo()
+{
+  return std::false_type{};
+}
+
+template <soa::is_column T, soa::is_table G>
+  requires(!soa::is_index_column<T>)
+consteval auto isIndexTo()
+{
+  return std::false_type{};
+}
+
 template <typename T, typename G>
-using is_index_to_g_t = typename std::conditional<o2::soa::is_binding_compatible_v<G, typename T::binding_t>(), std::true_type, std::false_type>::type;
+using is_index_to_g_t = decltype(isIndexTo<T, G>());
 
 template <typename G, typename A>
 expressions::BindingNode getMatchingIndexNode()
 {
-  using external_index_columns_pack = typename A::external_index_columns_t;
-  using selected_indices_t = selected_pack_multicondition<is_index_to_g_t, pack<G>, external_index_columns_pack>;
+  using selected_indices_t = selected_pack_multicondition<is_index_to_g_t, pack<G>, typename A::columns_t>;
   static_assert(pack_size(selected_indices_t{}) == 1, "No matching index column from associated to grouping");
   using index_column_t = pack_head_t<selected_indices_t>;
   return expressions::BindingNode{index_column_t::mLabel, o2::framework::TypeIdHelpers::uniqueId<typename index_column_t::column_t>(), expressions::selectArrowType<typename index_column_t::type>()};