object ColumnViewUtil
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def
deleteColumnView(viewHandle: Long): Unit
Delete a
cudf::column_viewinstanceDelete a
cudf::column_viewinstance- viewHandle
address of the cudf column view
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eq(arg0: AnyRef): Boolean
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finalize(): Unit
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def
fromViewWithContiguousAllocation(viewHandle: Long, buffer: DeviceMemoryBuffer): ColumnVector
Create a
ColumnVectorfrom acudf::column_viewdescribing a column in a contiguous tableCreate a
ColumnVectorfrom acudf::column_viewdescribing a column in a contiguous table- viewHandle
address of the
cudf::column_viewinstance- buffer
device buffer backing the data referenced by the view
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isInstanceOf[T0]: Boolean
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def
makeCudfColumnView(typeId: Int, typeScale: Int, dataAddress: Long, dataSize: Long, offsetsAddress: Long, validityAddress: Long, nullCount: Int, numRows: Int, childViews: Array[Long]): Long
Create a
cudf::column_viewinstanceCreate a
cudf::column_viewinstance- typeId
native ID of cudf data type
- typeScale
scale of type (used by decimal types)
- dataAddress
GPU address of the column's data buffer or 0
- dataSize
size of the data buffer in bytes
- offsetsAddress
GPU address of the column's offsets buffer or 0
- validityAddress
GPU address of the column's validity buffer or 0
- nullCount
number of null values in the column
- numRows
number of rows in the column
- childViews
addresses of
cudf::column_viewinstances for child columns or null- returns
address of the
cudf::column_viewinstance
- Note
deleteColumnViewmust be called to destroy the native view instance
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