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Difference between SimpleGather and Concatenate?

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    imriskal
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    Hi Senthil,

    The difference is in order of output records.

    SimpleGather forwards records immediately so output records do not have to be sorted in any way. Basically, common FIFO (First In, First Out) principle is applied.
           ________
    a,b | |
    ------| |
    c,d | | e,c,f,a,d,b or a,c,d,e,b,f or ... (random)
    ------| |------
    e,f | |
    ------| |
    |________|


    Concatenate gathers input records starting with the first input port, continuing with the next one and ending with the last port. Within each input port the records order is preserved.
           ________
    a,b | |
    ------| |
    c,d | | a,b,c,d,e,f
    ------| |------
    e,f | |
    ------| |
    |________|


    I hope it is clear now.

    Best regards,

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