diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c
index ff2f45c..470073b 100644
--- a/src/backend/commands/explain.c
+++ b/src/backend/commands/explain.c
@@ -2685,7 +2685,8 @@ show_hash_info(HashState *hashstate, ExplainState *es)
 	 */
 	if (hashstate->hashtable)
 		ExecHashGetInstrumentation(&hinstrument, hashstate->hashtable);
-
+	else
+		hinstrument = hashstate->saved_instrument;
 	/*
 	 * Merge results from workers.  In the parallel-oblivious case, the
 	 * results from all participants should be identical, except where
diff --git a/src/backend/executor/nodeHashjoin.c b/src/backend/executor/nodeHashjoin.c
index c901a80..db082be 100644
--- a/src/backend/executor/nodeHashjoin.c
+++ b/src/backend/executor/nodeHashjoin.c
@@ -1336,6 +1336,13 @@ ExecReScanHashJoin(HashJoinState *node)
 		else
 		{
 			/* must destroy and rebuild hash table */
+			HashState* state = (HashState*)innerPlanState(node);
+			Assert(state->hashtable == node->hj_HashTable);
+			if (state->ps.instrument)
+			{
+				ExecHashGetInstrumentation(&state->saved_instrument, state->hashtable);
+			}
+			state->hashtable = NULL;
 			ExecHashTableDestroy(node->hj_HashTable);
 			node->hj_HashTable = NULL;
 			node->hj_JoinState = HJ_BUILD_HASHTABLE;
diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h
index 3d27d50..94afc18 100644
--- a/src/include/nodes/execnodes.h
+++ b/src/include/nodes/execnodes.h
@@ -2302,6 +2302,8 @@ typedef struct HashState
 	SharedHashInfo *shared_info;	/* one entry per worker */
 	HashInstrumentation *hinstrument;	/* this worker's entry */
 
+	HashInstrumentation saved_instrument; /* save here instrumentation for dropped hash */
+
 	/* Parallel hash state. */
 	struct ParallelHashJoinState *parallel_state;
 } HashState;