You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
- insert or ignore in c++/java
- put if absent for load data
- abort imediately in spark data writer
- appendentries fix: delete or put
- doc
- refactor spark connector config setup
PutIfAbsent是一个特殊的选项,它可以避免插入重复数据,仅需一个配置,操作简单,特别适合load datajob失败后重试,等价于使用`INSERT OR IGNORE`。如果你想要导入的数据中存在重复,那么通过PutIfAbsent导入,会导致部分数据丢失。如果你需要保留重复数据,不应使用此选项,建议通过其他方式去重后再导入。
0 commit comments