From a6f4f2d6aa3b76cbe61bb63a8a4f00971db8e7ae Mon Sep 17 00:00:00 2001
From: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Date: Sat, 7 Feb 2015 22:10:35 +0100
Subject: [PATCH] db: Add mutation_partition::tombstone_for_row()

---
 database.hh | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/database.hh b/database.hh
index 1093c372d6..b0edcfeac6 100644
--- a/database.hh
+++ b/database.hh
@@ -206,6 +206,27 @@ public:
         }
         return &i->second.cells;
     }
+
+    /**
+     * Returns the base tombstone for all cells of given clustering row. Such tombstone
+     * holds all information necessary to decide whether cells in a row are deleted or not,
+     * in addition to any information inside individual cells.
+     */
+    tombstone tombstone_for_row(schema_ptr schema, const clustering_key& key) {
+        tombstone t = _tombstone;
+
+        auto i = _row_tombstones.lower_bound(key);
+        if (i != _row_tombstones.end() && schema->clustering_key_prefix_type->is_prefix_of(i->first, key)) {
+            t.apply(i->second);
+        }
+
+        auto j = _rows.find(key);
+        if (j != _rows.end()) {
+            t.apply(j->second.t);
+        }
+
+        return t;
+    }
 };
 
 class mutation final {