sync-diff-inspector是否支持上下游均为tidb，而且库名与表名均相同的同步任务，如果支持的话，麻烦看下我这个为什么会报错，是配置文件有问题吗

这是我之前比对单表的一个配置文件，可以参考下

check-thread-count = 16
export-fix-sql = true
check-struct-only = false
 
[data-sources]
[data-sources.tidb1]
 
    host = "xx.xx.xx.xx"
    port = 4000
    user = "xxx"
    password = "xxxx"
    snapshot = "442818765228867661"
[data-sources.tidb2]
 
    host = "xx.xx.xx.x"
    port = 4000
    user = "xxxx"
    password = "xxxx"
    snapshot = "442818765259538435"
[task]
 
    output-dir = "./output"
    source-instances = ["tidb1"]
    target-instance = "tidb2"
    target-check-tables = ["xxx.xxx"]
    target-configs = ["config1"]
[table-configs.config1] # config1 是该配置的唯一标识自定义 id，用于上面 task.target-configs 中
chunk-size = 10000000