Redshift data ingestion deduplication / upsert ( delete / insert ) using a staging table – and a little tuning
Why would you do this? In Redshift blocks are immutable – and are re-written completely – no partial block writes. […]
Why would you do this? In Redshift blocks are immutable – and are re-written completely – no partial block writes. […]
References to AWS Docs. For Redshift tuning table design distribution styles and distribution keys and much more… https://aws.amazon.com/blogs/big-data/amazon-redshift-engineerings-advanced-table-design-playbook-distribution-styles-and-distribution-keys/ https://aws.amazon.com/blogs/big-data/top-10-performance-tuning-techniques-for-amazon-redshift/ https://docs.aws.amazon.com/redshift/latest/dg/c_best-practices-best-dist-key.html
diststyle and distkey combination define slice distributions diststyle defaults to “even” when not defined distkey has no default
Download Aginity Workbench Desktop Client Here – I believe it is a Windows only tool. http://www.aginity.com/redshift/ I had to
General description of the process Generate a fairly large volume of test data using the tpch-kit – (setup required described
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Reference: https://aws.amazon.com/blogs/big-data/amazon-redshift-engineerings-advanced-table-design-playbook-preamble-prerequisites-and-prioritization/ Important info on scan frequency and table size… and a lot more. This guy is pretty good. Read all
First Off Note: Constraint Enforcement Redshift uniqueness constraints, primary key constraints, and foreign key constraints are not enforced Unfortunately Redshift uniqueness,
AWS Redshift Customizing Storage Across Your Cluster / Becoming Performant AWS Redshift is a highly tunable data warehousing environment that