data structure in aggregator stage

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zulfi123786
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data structure in aggregator stage

Post by zulfi123786 »

I was going through the documentation of aggregator stage and wondering what data structure is used to hold data in the heap.

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ray.wurlod
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Post by ray.wurlod »

It's not documented. Essentially it's a hash table keyed by the combined value of the grouping keys and containing the aggregation results for that group.
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