diff --git a/Postbox/SqliteInterface.swift b/Postbox/SqliteInterface.swift
index bf02131ae9..13364ea5f1 100644
--- a/Postbox/SqliteInterface.swift
+++ b/Postbox/SqliteInterface.swift
@@ -110,6 +110,23 @@ public final class SqliteInterface {
         }
     }
     
+    public func selectWithKey(_ query: String, index: Int, key: Data, _ f: (SqliteStatementCursor) -> Bool) {
+        var statement: OpaquePointer? = nil
+        sqlite3_prepare_v2(database.handle, query, -1, &statement, nil)
+        let preparedStatement = SqliteInterfaceStatement(statement: statement)
+        key.withUnsafeBytes { (bytes: UnsafePointer<Int8>) -> Void in
+            preparedStatement.bind(index, data: bytes, length: key.count)
+        }
+        let cursor = SqliteStatementCursor(statement: preparedStatement)
+        while preparedStatement.step() {
+            if !f(cursor) {
+                break
+            }
+        }
+        preparedStatement.reset()
+        preparedStatement.destroy()
+    }
+    
     public func select(_ query: String, _ f: (SqliteStatementCursor) -> Bool) {
         var statement: OpaquePointer? = nil
         sqlite3_prepare_v2(database.handle, query, -1, &statement, nil)