Add support for $setWindowFields aggregation stage. #3739
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Add a SetWindowFieldsOperation to the aggregation framework.
The builder API allows fluent declaration of the aggregation stage as shown in the sample below.
SetWindowFieldsOperation.builder()
.partitionByField("state")
.sortBy(Sort.by(Direction.ASC, "date"))
.output(AccumulatorOperators.valueOf("qty").sum())
.within(Windows.documents().fromUnbounded().toCurrent().build())
.as("cumulativeQuantityForState")
.build();
mp911de
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Aug 23, 2021
Add a SetWindowFieldsOperation to the aggregation framework.
The builder API allows fluent declaration of the aggregation stage as shown in the sample below.
SetWindowFieldsOperation.builder()
.partitionByField("state")
.sortBy(Sort.by(Direction.ASC, "date"))
.output(AccumulatorOperators.valueOf("qty").sum())
.within(Windows.documents().fromUnbounded().toCurrent().build())
.as("cumulativeQuantityForState")
.build();
Closes #3711
Original pull request: #3739.
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That's merged and polished now. |
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Add a SetWindowFieldsOperation to the aggregation framework.
The builder API allows fluent declaration of the aggregation stage as shown in the sample below.