我有一组字符串,如
mystring
[1] "RData/processed_AutoServico_cat.rds"
[2] "RData/processed_AutoServico_cat_master.rds"
我想检索下划线"_“和".rds”之间的字符串
我可以分两步做
str_extract(mystring, '[^_]+$') %>% # get everything after the last '_'
str_extract('.+(?=\\.rds)') # g
嗨,
I am new to AWS and I have a use case where I have to process bulk updates on Amazon RDS DB based on the input files received in my S3 Bucket. Please validate my solution on this use case and correct me if I am wrong.
我将在文件到达S3桶时使用AWS函数来调用AWS批处理,该批处理使用EC2进行处理并将更新写入RDS。
S3 -> Lambda -> AWS
我有一个AWS PostgreSQL RDS实例。我想创建用于与MySQL RDS通信的mysql_fdw扩展。当我尝试创建这个扩展时,我得到了以下错误
ERROR: Extension "mysql_fdw" is not supported by Amazon RDS
DETAIL: Installing the extension "mysql_fdw" failed, because it is not on the list of extensions supported by Amazon RDS.
HINT: Amazon RDS allow
我基本上按照terraform示例创建了RDS:
我使用的是现有的VPC,在此VPC中创建实例时,可以使用ssh密钥文件cloudeng.pem进行SSH
MySQL terraform使用端点demo-rds.abc.us-east-1.rds.amazonaws.com创建RDS。
因此,我正在尝试通过MySQL工作台设置连接。
Workbench需要以下各项:
SSH Hostname: not sure how to set, tried `172.31.96.233` from ping `endpoint dmo-rds.abc.us-east-1.rds.amazonaws.c