TransformFunction¶
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class
vertica_sdk.
TransformFunction
¶ Interface for a user-defined transform function. A transform function operates on a table segment and returns zero or more rows of data.
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processPartition
¶ Invoke the transform function on a set of rows contained in partition_reader, a
vertica_sdk.PartitionReader
object. Each call processes an entire partition of rows.Output is written to partition_writer, a
vertica_sdk.PartitionWriter
object.
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