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The Link Collector stage is an active stage which takes up to 64 inputs and allows you to collect data from these links and route it along a single output link. The stage expects the output link to use the same metadata as the input links.

IBM documentation

Server JobsStage: Link Collector Stages - IBM Documentation

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• Each Server Link Collector input link is translated into a Container input link.

• The Server Link Collector output link is translated into a Container output link.

• Each container input link has a Parallel Copy Stage which acts to rename columns to align with expected output metadata definitions.

• Each Parallel Copy Stage is connected to a Parallel Funnel which combines results into a single Container output link based on the Collection Algorithm and (for the Sort/Merge option) Sort Key properties derived from those of the original Server Link Collector.

See Parallel Job Structural Differences.

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