Broadcasting Optimization Statistics 
AWS Big Data
OCTOBER 1, 2024
Over the last year, Amazon Redshift added several performance optimizations for data lake queries across multiple areas of query engine such as rewrite, planning, scan execution and consuming AWS Glue Data Catalog column statistics. Enabling AWS Glue Data Catalog column statistics further improved performance by 3x versus last year.
AWS Big Data
MARCH 22, 2024
When you use Trino on Amazon EMR or Athena, you get the latest open source community innovations along with proprietary, AWS developed optimizations. and Athena engine version 2, AWS has been developing query plan and engine behavior optimizations that improve query performance on Trino. Starting from Amazon EMR 6.8.0
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O'Reilly on Data
MARCH 23, 2021
Before the advent of broadcast media and mass culture, individuals’ mental models of the world were generated locally, along with their sense of reality and what they considered ground truth. What has happened? Reality has once again become decentralized. The InfoLandscapes. “Cyberspace.
Smart Data Collective
MAY 14, 2021
It allows for the storage of user data and statistics, the collection of said statistics, usage analytics and reports, an integrated billing system, live rewind, catchup, EPG integration, DRM, lets you view and analyse information related to VOD, live rewind, catchup, timeshift, and more. Client Reporting. Dashboard and Analytics.
Smart Data Collective
AUGUST 5, 2021
Delta lake allows thousands of data to run in parallel, address optimization and partition challenges, faster metadata operations, maintains a transactional log and continuously keeps updating the data. improved data processing in the following ways: Skewed Join Optimization. Advantages of using Delta Lakes. Skewed Partition Condition.
Cloudera
MARCH 24, 2021
To enable data pruning, modern columnar formats such as ORC and Parquet maintain indexes, bloom filters, and statistics to determine if a group of data needs to be read at all before returning to the execution engine. Hive users can check how probedecode optimization applies for their MapJoin queries using their standard query explain plans.
Cloudera
DECEMBER 15, 2020
Catalyst now stops at each stage boundary to try and apply additional optimizations given the information available on the intermediate data. This is what the execution of the first TPC-DS query looks like before and after enabling AQE: Dynamically Converting Sort Merge Joins to Broadcast Joins. Dynamically Optimize Skewed Joins.
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