Cloudera

MARCH 24, 2021

In a join between a small table (right side) and a big table (left side) we typically read the entire small table and broadcast the generated hash table to the tasks scanning the bigger table. Hive users can check how probedecode optimization applies for their MapJoin queries using their standard query explain plans.

Data Warehouse 76

Data Warehouse Broadcasting Statistics Cost-Benefit 76

CIO Business Intelligence

JUNE 9, 2022

All this data arrives by the terabyte, and a data management platform can help marketers make sense of it all. Marketing-focused or not, DMPs excel at negotiating with a wide array of databases, data lakes, or data warehouses, ingesting their streams of data and then cleaning, sorting, and unifying the information therein.

Management 143

Management Advertising Data Lake Sales 143

CIO Business Intelligence

SEPTEMBER 22, 2023

All this data arrives by the terabyte, and a data management platform can help marketers make sense of it all. DMPs excel at negotiating with a wide array of databases, data lakes, or data warehouses, ingesting their streams of data and then cleaning, sorting, and unifying the information therein.

Management 104

Management Advertising Data Lake Sales 104

Cloudera

OCTOBER 20, 2020

In addition, a lot of work has also been put into ensuring that Impala runs optimally in decoupled compute scenarios, where the data lives in object storage or remote HDFS. These are the common bottlenecks in analytic queries, and are notoriously difficult to optimize. . Broadcast Hash Join. Summary and call to action.

Modeling 103

Modeling Broadcasting Cost-Benefit Data Warehouse 103