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Controlling the processing of data using partition strategies ...
External Script Training Overview. This is the R script version. 1. Introduction to
external script interface. 2. Controlling Script Processes – threads and nodes. 3.
Controlling the processing of data using partition strategies
External Script Training Overview
Click here to download the supporting SQL script
This is the R script version 1. 2. 3. 4.
Introduction to external script interface Controlling Script Processes – threads and nodes Controlling Data Processing – partitions Passing parameters through to scripts
Controlling data processing: Partition Strategies Overview • SQL Windowing style syntax controls bucketing and sorting of data • Scripting modes control processing strategy Default / Mixed
Separate
SQL
SQL
Isolate User view of Data in RAM
SQL
RAM Stores Parallel Script Processes Output
Result
Result
Result
Control script input split by declaring partition columns from receives. Using SQL windowing syntax
Controlling data processing: Default Behaviour
create external script Kog_R_AvgOverPartID_Def1 environment rscript receives(Part_ID int, value float) partition by Part_ID sends(Part_ID int, avg1 decimal(10,2), count1 int) Set variables and open script connection via standard S'EOF( input to stream data f
