初始化一张表

overwriteSchema 默认为false

图中注意事项:
Note that the schema can't be overwritten when using
'replaceWhere'.
overwriteSchema 配置为true 可成功覆盖插入

overwriteSchema=true的配置项必须配置.mode("overwrite") 而不能是.mode("append")

测试代码
Seq(
("a", "2021")
, ("b0", "2022")
, ("b



















