先说说Athena。AWS对Athena的定位是一个”Query Service”, 它主要针对S3上存储的数据进行即席查询,它是一个Serverless的服务,你不需要去维护一个集群,你只需要基于你的S3的数据定义一个table,然后就可以利用ANSI SQL对这个“表”(其实就是S3)上的数据进行各种分析查询了。不过Amazon提供的Web界面真的是挺朴素的,跟...
Because CloudTrail logs have a known structure whose partition scheme you can specify in advance, you can reduce query runtime and automate partition management by using the Athena partition projection feature. Partition projection automatically adds new partitions as new data is added. This removes ...
If a table has table statistics in the AWS Glue Data Catalog, Athena will use these to perform join reordering and aggregation pushdown using cost-based optimization (“cost” here refers to computational cost). When a table has statistics, the query optimizer is able to see which order of...
The Amazon Athena Query Federation SDK allows you to customize Amazon Athena with your own data sources and code. - aws-athena-query-federation/athena-federation-sdk at master · awslabs/aws-athena-query-federation
RefAWS::AccountIdTableInput:Name:tbl_request_viewTableType:VIRTUAL_VIEWParameters:presto_view:truePartitionKeys:[]ViewOriginalText:Fn::Join:-''--'/* Presto View: '-Fn::Base64:!Sub-|{"originalSql":"my sql query here","catalog":"awsdatacatalog","schema":"${DatabaseName}","columns":[...
流处理架构, Firehose收集流数据,Data Analytics 过滤数据然后又发到下一个Firehose, 然后发到S3, Athena是个交互式SQL工具,query到结果放到 QuickInsight BI 工具展示. Glue ? Within AWS, Hadoop frameworks are implemented using Amazon EMR and AWS Glue ...
When we first launchedAmazon Athena, our mission was to make it simple to query data stored inAmazon Simple Storage Service(Amazon S3). Athena customers found it easy to get started and develop analytics on petabyte-scale data lakes, but told us they needed to join their Amazon S3 data wi...
SDK-Side: Query Passthrough Implementation (#1769) Feb 24, 2024 athena-federation-sdk Add athena connector exception class to classify Runtime Exception (#… Sep 11, 2024 athena-gcs build(deps): bump net.java.dev.jna:jna-platform from 5.14.0 to 5.15.0 ...
我之前曾问过一个问题,并且得到了解答(AWS Athena 将 JSON 对象数组解析为行),关于使用 Athena 解析 JSON 数组但遇到了变体。 使用示例: SELECT user_textarray FROM "sample"."workdetail" where workid = '5bb0a33f-3ca6-4f9c-9676-0b4d62dbb195' 返回结果为: [{"userlist":"{'id': 'd87b002...
isArray() 判断对象是否为数组。 join() 把数组的所有元素放入一个字符串。 keys() 返回数组的可...