From 8788b556ddd3a651215e7d4faddcbdc0be7ce0a7 Mon Sep 17 00:00:00 2001
From: Seth Shelnutt <seth@tiledb.io>
Date: Wed, 19 Feb 2020 11:51:32 -0500
Subject: [PATCH] Improve error msg for global order writes failures

This adds a small addition to indicate if it was the tile comparision
that failed. This can help debug the problem that the write was not
aligned to the tile boundaries properly.
---
 tiledb/sm/query/writer.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tiledb/sm/query/writer.cc b/tiledb/sm/query/writer.cc
index 381c9b39b43..815eb85325c 100644
--- a/tiledb/sm/query/writer.cc
+++ b/tiledb/sm/query/writer.cc
@@ -712,6 +712,8 @@ Status Writer::check_global_order() const {
       ss << "Write failed; Coordinates " << coords_to_str(i);
       ss << " succeed " << coords_to_str(i + 1);
       ss << " in the global order";
+      if (tile_cmp > 0)
+        ss << " due to writes across tiles";
       return LOG_STATUS(Status::WriterError(ss.str()));
     }
     return Status::Ok();