PXC(Percona XtraDB Cluster) init error

[JiangQiChina]

The table FLW_EV_DATABASECHANGELOG lacks a primary key, which will cause initialization to fail when using Percona XtraDB Cluster. Additionally, the table creation statements for FLW_RU_BATCH and FLW_RU_BATCH_PART include CHARSET=utf8 COLLATE=utf8_bin, leading to inconsistency with tables using utf8mb4.