Multiple choice technology

Select parameter in Join component

  1. is specific for each input port

  2. Selects specific records to be passed to Join transform function

  3. Filter for records before join function

  4. Depends on the join key
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A,B,C Correct answer
Explanation

In Ab Initio's Join component, the Select parameter is defined separately for each input port and filters records before they reach the join function. This pre-join filtering is crucial for performance. The join key determines matching logic, but Select is a pre-filter independent of the key.

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