Yeah, well, I remember in the early 2000s, that was sort of an ongoing debate and an ongoing issue.
The story of the discovery will be featured on BBC Two's Digging for Britain on 14 January at 21:00 GMT, or on BBC iPlayer.
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The ovations were strong and heartfelt, the mutual appreciation, well, blindingly obvious.
tag_bloom_hi and tag_bloom_lo form a 64-bit Bloom filter of the entries in the TAG= key (which are normally separated by : characters). If no keys are present, the value is 0. A Bloom filter is a special data structure based on hashes which can either return "this element is certainly not in the set" or "this element might be in the set, but this could also just be a false positive". In this case, it allows BPF to preemptively filter out events that definitely do not contain the proper TAGs.
The execution of this query is split into 2 separate pipelines. Why is that? When performing a Hash Aggregation we have