fix TestPrepareExecuteMetadataChangedFlag

Author: joao-r-reis

cassandra_test.go

@@ -3715,7 +3715,7 @@ func TestPrepareExecuteMetadataChangedFlag(t *testing.T) {
 	require.Len(t, row, 1, "Expected to retrieve a single column")
 	require.Equal(t, 1, row["id"])
 
-	stmtCacheKey := session.stmtsLRU.keyFor(hostid, "", queryBeforeTableAltering.stmt)
+	stmtCacheKey := session.stmtsLRU.keyFor(hostid, "gocql_test", queryBeforeTableAltering.stmt)
 	inflight, ok := session.stmtsLRU.get(stmtCacheKey)
 	if !ok {
 		t.Fatalf("failed to find inflight entry for key %v", stmtCacheKey)