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beorn7 5f366e9b62 histograms: Improve tests and fix exposed bugs ... This adds negative buckets and access of float histograms to TestHistogramChunkSameBuckets and TestHistogramChunkBucketChanges. It also exercises a specific pattern of reusing an iterator (one where no access has happened). This exposes two bugs (where entries for positive buckets where used where the corresponding entries for negative buckets should have been used). One was fixed in #11627 (not merged), which triggered the work in this commit. This commit fixes both issues, so #11627 can be closed. It also simplifies the code in the histogramIterator.Next method that aims to recycle existing slice capacity. Furthermore, this is on top of the release-2.40 branch because we should probably cut a bugfix release for this. Signed-off-by: beorn7 <beorn@grafana.com>		2 years ago
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bstream.go	tsdb: stop saving a copy of last 4 samples in memSeries (#11296)	2 years ago
bstream_test.go	Testify: move to require (#8122)	4 years ago
chunk.go	Fix merge conflicts	2 years ago
chunk_test.go	tsdb: Rework iterators (#9877)	3 years ago
histogram.go	histograms: Improve tests and fix exposed bugs	2 years ago
histogram_meta.go	Fix merge conflicts	2 years ago
histogram_meta_test.go	Merge branch 'main' into sparsehistogram	3 years ago
histogram_test.go	histograms: Improve tests and fix exposed bugs	2 years ago
varbit.go	tsdb: Update comment about a possible space optimization (#11303)	2 years ago
varbit_test.go	Use more varbit in histogram chunks	3 years ago
xor.go	chunkenc: Slightly optimize xorWrite/xoRead (#11476)	2 years ago
xor_test.go	chunkenc: Slightly optimize xorWrite/xoRead (#11476)	2 years ago