Common Properties of Data Partitioning Components

These components are dedicated for data flow management when using Data Partitioning or in the CloverETL Cluster environment.

Table 61.1. Data Partitioning Components Comparison

ComponentSame input metadataSorted inputsInputsOutputsJavaCTLAuto-propagated metadata
ParallelPartition
yes
no
11[1][2][2]
yes
ParallelLoadBalancingPartition
yes
no
11[1]
no
no
yes
ParallelSimpleGather
yes
no
1[3]1
no
no
yes
ParallelMerge
yes
yes
1[3]1
no
no
yes
ParallelRepartition
yes
no
1[3]1[1][2][2]
yes
ParallelSimpleCopy
yes
no
11[1]
no
no
yes

[1]  The single output port represents multiple virtual output ports.

[2]  ParallelPartition and ParallelRepartition can use either a transformation or two other attributes (Ranges or Partition key).

[3]  The single input port represents multiple virtual input ports.