Amazon Redshift Spectrum – Exabyte-Scale In-Place Queries of S3 Data | Amazon Web Services
AWS News Blog Amazon Redshift Spectrum – Exabyte-Scale In-Place Queries of S3 Data Now that we can launch cloud-based compute and storage resources with a couple of clicks, the challenge is to use these resources to go from raw data to actionable results as quickly and efficiently as possible. Amazon Redshift allows AWS customers to build petabyte-scale data warehouses that unify data from a varie
Diagnostic queries for query tuning - Amazon Redshift
Use the following queries to identify issues with queries or underlying tables that can affect query performance. We recommend using these queries with the query tuning processes discussed in Analyzing and improving queries. Identifying queries that are top candidates for tuning The following query identifies the top 50 most time-consuming statements that have been run in the last 7 days. You can
Improving query performance - Amazon Redshift
Table statistics missing or out of date If table statistics are missing or out of date, you might see the following: A warning message in EXPLAIN command results. A missing statistics alert event in STL_ALERT_EVENT_LOG. For more information, see Reviewing query alerts. To fix this issue, run ANALYZE. Nested loop If a nested loop is present, you might see a nested loop alert event in STL_ALERT_EVEN
Powering Amazon Redshift Analytics with Apache Spark and Amazon Machine Learning | Amazon Web Services
AWS Big Data Blog Powering Amazon Redshift Analytics with Apache Spark and Amazon Machine Learning Air travel can be stressful due to the many factors that are simply out of airline passengers’ control. As passengers, we want to minimize this stress as much as we can. We can do this by using past data to make predictions about how likely a flight will be delayed based on the time of day or the air
JOIN Amazon Redshift AND Amazon RDS PostgreSQL WITH dblink | Amazon Web Services
AWS Big Data Blog JOIN Amazon Redshift AND Amazon RDS PostgreSQL WITH dblink Tony Gibbs is a Solutions Architect with AWS (Update: This blog post has been translated into Japanese) When it comes to choosing a SQL-based database in AWS, there are many options. Sometimes it can be difficult to know which one to choose. For example, when would you use Amazon Aurora instead of Amazon RDS PostgreSQL or
Top 10 performance tuning techniques for Amazon Redshift | Amazon Web Services
AWS Big Data Blog Top 10 performance tuning techniques for Amazon Redshift New: Read Amazon Redshift continues its price-performance leadership to learn what analytic workload trends we’re seeing from Amazon Redshift customers, new capabilities we have launched to improve Redshift’s price-performance, and the results from the latest benchmarks. Customers use Amazon Redshift for everything from acc
Building Your Data Warehouse with Amazon Redshift
In this presentation, you will get a look under the covers of Amazon Redshift, a fast, fully-managed, petabyte-scale data warehouse service for less than $1,000 per TB per year. Learn how Amazon Redshift uses columnar technology, optimized hardware, and massively parallel processing to deliver fast query performance on data sets ranging in size from hundreds of gigabytes to a petabyte or more. We'
第4回 Amazon Redshiftにデータをロードしてみよう | gihyo.jp
前回は、Amazon Redshiftの起動から、ローカルマシンでAmazon Redshiftクラスタへ接続するまでの説明を行いました。今回は、Amazon Redshiftを実際に運用する上で重要となるデータのロードを中心に、例を交えて説明していきます。なお、チュートリアルの中で利用するデータはAmazon Redshift Getting Started Guideで紹介されているデータを利用しています。 本連載のチュートリアルは、AWSアカウント、起動中のAmazon Redshiftクラスタ、また接続するクライアントツールがすでに準備されていることを前提としています（※）。実際に試される方は、前回の記事を参考に環境準備をしておいてください。 ※） Hapyrusでは、RedshiftとFlyDataをお試しいただけるSandbox環境を無料で提供しています。また、ブラウザ上か
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COPY - Amazon Redshift
GitHub - awslabs/aws-lambda-redshift-loader: Amazon Redshift Database Loader implemented in AWS Lambda
GitHub - awslabs/amazon-redshift-utils: Amazon Redshift Utils contains utilities, scripts and view which are useful in a Redshift environment