From 65e379f31dacece5689af80b00096e631f8a31dd Mon Sep 17 00:00:00 2001
From: Badrish Chandramouli <badrishc@microsoft.com>
Date: Mon, 18 Jul 2022 14:44:04 -0700
Subject: [PATCH] Wait index checkpoint phase should behave similarly to wait
 flush - perform create-new-record during a checkpoint if record is not in the
 new version (during the snapshot). (#724)

---
 cs/src/core/Index/FASTER/FASTERImpl.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cs/src/core/Index/FASTER/FASTERImpl.cs b/cs/src/core/Index/FASTER/FASTERImpl.cs
index cbb8e2705..3fd820957 100644
--- a/cs/src/core/Index/FASTER/FASTERImpl.cs
+++ b/cs/src/core/Index/FASTER/FASTERImpl.cs
@@ -688,6 +688,7 @@ private LatchDestination AcquireLatchUpsert<Input, Output, Context>(FasterExecut
                         }
                         break; // Normal Processing
                     }
+                case Phase.WAIT_INDEX_CHECKPOINT:
                 case Phase.WAIT_FLUSH:
                     {
                         if (!CheckEntryVersionNew(logicalAddress))
@@ -1233,6 +1234,7 @@ private LatchDestination AcquireLatchRMW<Input, Output, Context>(PendingContext<
                         }
                         break; // Normal Processing
                     }
+                case Phase.WAIT_INDEX_CHECKPOINT:
                 case Phase.WAIT_FLUSH:
                     {
                         if (!CheckEntryVersionNew(logicalAddress))
@@ -1638,6 +1640,7 @@ internal OperationStatus InternalDelete<Input, Output, Context, FasterSession>(
                             }
                             break; // Normal Processing
                         }
+                    case Phase.WAIT_INDEX_CHECKPOINT:
                     case Phase.WAIT_FLUSH:
                         {
                             if (!CheckEntryVersionNew(logicalAddress))