diff --git a/swh/dataset/exporters/orc.py b/swh/dataset/exporters/orc.py
--- a/swh/dataset/exporters/orc.py
+++ b/swh/dataset/exporters/orc.py
@@ -163,6 +163,7 @@
                 release["target_type"],
                 (release.get("author") or {}).get("fullname"),
                 *swh_date_to_tuple(release["date"]),
+                release.get("raw_manifest"),
             )
         )
 
@@ -178,6 +179,7 @@
                 *swh_date_to_tuple(revision["committer_date"]),
                 hash_to_hex_or_none(revision["directory"]),
                 revision["type"],
+                revision.get("raw_manifest"),
             )
         )
 
@@ -207,7 +209,12 @@
 
     def process_directory(self, directory):
         directory_writer = self.get_writer_for("directory")
-        directory_writer.write((hash_to_hex_or_none(directory["id"]),))
+        directory_writer.write(
+            (
+                hash_to_hex_or_none(directory["id"]),
+                directory.get("raw_manifest"),
+            )
+        )
 
         directory_entry_writer = self.get_writer_for(
             "directory_entry",
diff --git a/swh/dataset/relational.py b/swh/dataset/relational.py
--- a/swh/dataset/relational.py
+++ b/swh/dataset/relational.py
@@ -41,6 +41,7 @@
         ("date_seconds", "bigint"),
         ("date_microseconds", "int"),
         ("date_offset_bytes", "binary"),
+        ("raw_manifest", "binary"),
     ],
     "revision": [
         ("id", "string"),
@@ -55,6 +56,7 @@
         ("committer_date_offset_bytes", "binary"),
         ("directory", "string"),
         ("type", "string"),
+        ("raw_manifest", "binary"),
     ],
     "revision_history": [
         ("id", "string"),
@@ -68,6 +70,7 @@
     ],
     "directory": [
         ("id", "string"),
+        ("raw_manifest", "binary"),
     ],
     "directory_entry": [
         ("id", "string"),
diff --git a/swh/dataset/test/test_orc.py b/swh/dataset/test/test_orc.py
--- a/swh/dataset/test/test_orc.py
+++ b/swh/dataset/test/test_orc.py
@@ -98,6 +98,7 @@
             obj.target_type.value,
             obj.author.fullname if obj.author else None,
             *swh_date_to_tuple(obj.date.to_dict() if obj.date is not None else None),
+            obj.raw_manifest,
         ) in output[obj_type]
 
 
@@ -116,6 +117,7 @@
             ),
             hash_to_hex_or_none(obj.directory),
             obj.type.value,
+            obj.raw_manifest,
         ) in output["revision"]
         for i, parent in enumerate(obj.parents):
             assert (
@@ -129,7 +131,7 @@
     obj_type = "directory"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]:
-        assert (hash_to_hex_or_none(obj.id),) in output["directory"]
+        assert (hash_to_hex_or_none(obj.id), obj.raw_manifest) in output["directory"]
         for entry in obj.entries:
             assert (
                 hash_to_hex_or_none(obj.id),