Introduction to Athena
Athena is a serverless and interactive query service that makes it easier to analyze data directly from Amazon S3 using Standard SQL. It is used to query large amounts of data stored in the Amazon S3 bucket it uses Presto as its querying engine. Query results are cached in S3 by default for 45 days. It also stores the metadata of the data stored in S3 in CSV, JSON or any other format. For that, it uses AWS glue catalog metadata (hive metadata store). We pay per query (1Tb scanned = $5 […]
