From 9d35c9c5c0ca881b739b162e03f62458e9fe1de7 Mon Sep 17 00:00:00 2001
From: Jan Fiete <jgrosseo@cern.ch>
Date: Wed, 5 Jan 2022 13:18:59 +0100
Subject: [PATCH] Add Origin table

---
 Framework/Core/include/Framework/AnalysisDataModel.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Framework/Core/include/Framework/AnalysisDataModel.h b/Framework/Core/include/Framework/AnalysisDataModel.h
index e3f2c70665055..a8e623607f6ff 100644
--- a/Framework/Core/include/Framework/AnalysisDataModel.h
+++ b/Framework/Core/include/Framework/AnalysisDataModel.h
@@ -735,12 +735,22 @@ namespace soa
 {
 extern template struct Join<aod::TransientCascades, aod::StoredCascades>;
 }
+
 namespace aod
 {
-
 using Cascades = soa::Join<TransientCascades, StoredCascades>;
 using Cascade = Cascades::iterator;
 
+namespace origin
+{
+DECLARE_SOA_COLUMN(DataframeID, dataframeID, uint64_t); //! Data frame ID (what is usually found in directory name in the AO2D.root, i.e. DF_XXX)
+} // namespace origin
+
+DECLARE_SOA_TABLE(Origins, "AOD", "ORIGIN", //! Table which contains the IDs of all dataframes merged into this dataframe
+                  o2::soa::Index<>, origin::DataframeID);
+
+using Origin = Origins::iterator;
+
 // ---- Run 2 tables ----
 namespace run2
 {