object DeltaWriter extends StrictLogging
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- def reduce(sft: SimpleFeatureType, dictionaryFields: Seq[String], encoding: SimpleFeatureEncoding, ipcOpts: IpcOption, sort: Option[(String, Boolean)], sorted: Boolean, batchSize: Int, process: Boolean, deltas: CloseableIterator[Array[Byte]]): CloseableIterator[Array[Byte]]
Reduce function for delta records created by DeltaWriter
Reduce function for delta records created by DeltaWriter
- sft
simple feature type
- dictionaryFields
dictionary fields
- encoding
simple feature encoding
- sort
sort metadata, if defined each delta is assumed to be sorted
- sorted
whether features are already globally sorted or not
- batchSize
batch size
- process
process the output into a valid arrow file (which usually requires reading the entire input stream)
- deltas
output from
DeltaWriter.encode- returns
single arrow streaming file, with potentially multiple record batches, or raw delta batches
- def reduce(sft: SimpleFeatureType, dictionaryFields: Seq[String], encoding: SimpleFeatureEncoding, ipcOpts: IpcOption, sort: Option[(String, Boolean)], sorted: Boolean, batchSize: Int, deltas: CloseableIterator[Array[Byte]]): CloseableIterator[Array[Byte]]
Reduce function for delta records created by DeltaWriter
Reduce function for delta records created by DeltaWriter
- sft
simple feature type
- dictionaryFields
dictionary fields
- encoding
simple feature encoding
- sort
sort metadata, if defined each delta is assumed to be sorted
- sorted
whether features are already globally sorted or not
- batchSize
batch size
- deltas
output from
DeltaWriter.encode- returns
single arrow streaming file, with potentially multiple record batches
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