Spark Concatenate

This node concatenates Spark DataFrame/RDDs, inputs are optional. The Spark DataFrame/RDDs need to have the same structure e.q. column names and types in the same order.

Input Ports

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Spark DataFrame/RDD contributing the rows of the first part of the output Spark DataFrame/RDD.
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Spark DataFrame/RDD contributing subsequent rows (optional).
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Spark DataFrame/RDD contributing subsequent rows (optional).
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Spark DataFrame/RDD contributing subsequent rows (optional).

Output Ports

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Spark DataFrame/RDD with rows from all input Spark DataFrame/RDDs.

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