final class UnboundedWindowFunctionFrame extends WindowFunctionFrame
The unbounded window frame calculates frames with the following SQL forms: ... (No Frame Definition) ... BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
Its results are the same for each and every row in the partition. This class can be seen as a special case of a sliding window, but is optimized for the unbound case.
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- WindowFunctionFrame
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- new UnboundedWindowFunctionFrame(target: InternalRow, processor: AggregateProcessor)
- target
to write results to.
- processor
to calculate the row values with.
Value Members
- final def !=(arg0: Any): Boolean
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- def currentLowerBound(): Int
The current lower window bound in the row array (inclusive).
The current lower window bound in the row array (inclusive).
This should be called after the current row is updated via
write.- Definition Classes
- UnboundedWindowFunctionFrame → WindowFunctionFrame
- def currentUpperBound(): Int
The current row index of the upper window bound in the row array (exclusive)
The current row index of the upper window bound in the row array (exclusive)
This should be called after the current row is updated via
write.- Definition Classes
- UnboundedWindowFunctionFrame → WindowFunctionFrame
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- val lowerBound: Int
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- def prepare(rows: ExternalAppendOnlyUnsafeRowArray): Unit
Prepare the frame for calculating a new partition.
Prepare the frame for calculating a new partition. Process all rows eagerly.
- rows
to calculate the frame results for.
- Definition Classes
- UnboundedWindowFunctionFrame → WindowFunctionFrame
- final def synchronized[T0](arg0: => T0): T0
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- var upperBound: Int
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- def write(index: Int, current: InternalRow): Unit
Write the frame columns for the current row to the given target row.
Write the frame columns for the current row to the given target row.
- Definition Classes
- UnboundedWindowFunctionFrame → WindowFunctionFrame