MDEV-7714: Make possible to get innodb internal primary key for wrapper

type storage engine.

Authored by: Kentoku Shiba

storage/innobase/row/row0mysql.cc

@@ -1461,6 +1461,11 @@ row_insert_for_mysql(
 	with a latch. */
 	dict_table_n_rows_inc(table);
 
+	if (prebuilt->clust_index_was_generated) {
+		/* set row id to prebuilt */
+		ut_memcpy(prebuilt->row_id, node->row_id_buf, DATA_ROW_ID_LEN);
+	}
+
 	row_update_statistics_if_needed(table);
 	trx->op_info = "";
 

storage/xtradb/row/row0mysql.cc

@@ -1455,6 +1455,11 @@ row_insert_for_mysql(
 			srv_stats.n_rows_inserted.add((size_t)trx->id, 1);
 		}
 
+		if (prebuilt->clust_index_was_generated) {
+			/* set row id to prebuilt */
+			ut_memcpy(prebuilt->row_id, node->row_id_buf, DATA_ROW_ID_LEN);
+		}
+
 		/* Not protected by dict_table_stats_lock() for performance
 		reasons, we would rather get garbage in stat_n_rows (which is
 		just an estimate anyway) than protecting the following code