I'm using S3 select to query a object from a file in S3 bucket but wondering if I can do it with multiple files or if its limited to just one. I wrote one query from a file using aws lambda but when I tried writing another one for a different file it gave me a error message.
Amazon S3 Select operates on only one object.
To query multiple files at once on S3 with a SQL syntax you should use Amazon Athena.
来源：https://stackoverflow.com/questions/51312541/does-aws-s3-select-work-with-multiple-files