SERVER-33303 Add stable plan cache key and use for index filters

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mongo/db/commands/plan_cache_commands.cpp b/src/mongo/db/commands/plan_cache_commands.cpp
index ba189fa45bb..f2490831ca4 100644
--- a/src/mongo/db/commands/plan_cache_commands.cpp
+++ b/src/mongo/db/commands/plan_cache_commands.cpp
@@ -424,6 +424,7 @@ Status listPlansOriginalFormat(std::unique_ptr<CanonicalQuery> cq,
     // Append the time the entry was inserted into the plan cache.
     bob->append("timeOfCreation", entry->timeOfCreation);
     bob->append("queryHash", unsignedIntToFixedLengthHex(entry->queryHash));
+    bob->append("planCacheKey", unsignedIntToFixedLengthHex(entry->planCacheKey));
     // Append whether or not the entry is active.
     bob->append("isActive", entry->isActive);
     bob->append("works", static_cast<long long>(entry->works));