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6 commits

Author SHA1 Message Date
Björn Rabenstein 4ce01e9770
storage: Rename ...Values methods to At... (#9889) 
This mirrors #9888 for the richer iterators we have with histograms in
the game.

Signed-off-by: beorn7 <beorn@grafana.com>
 2021-11-29 16:23:04 +05:30
Björn Rabenstein 7e42acd3b1
tsdb: Rework iterators (#9877) 
- Pick At... method via return value of Next/Seek.
- Do not clobber returned buckets.
- Add partial FloatHistogram suppert.

Note that the promql package is now _only_ dealing with
FloatHistograms, following the idea that PromQL only knows float
values.

As a byproduct, I have removed the histogramSeries metric. In my
understanding, series can have both float and histogram samples, so
that metric doesn't make sense anymore.

As another byproduct, I have converged the sampleBuf and the
histogramSampleBuf in memSeries into one. The sample type stored in
the sampleBuf has been extended to also contain histograms even before
this commit.

Signed-off-by: beorn7 <beorn@grafana.com>
 2021-11-29 13:24:23 +05:30
beorn7 73858d7f82 storage: histogram support in memoized_iterator 
Signed-off-by: beorn7 <beorn@grafana.com>
 2021-11-15 21:55:58 +01:00
beorn7 9b30ca2598 promql: Support histogram in value string representation 
Signed-off-by: beorn7 <beorn@grafana.com>
 2021-11-15 20:36:44 +01:00
Marco Pracucci 6f050f66c7
Update storage/memoized_iterator.go 
Signed-off-by: Marco Pracucci <marco@pracucci.com>

Co-authored-by: Julien Pivotto <roidelapluie@gmail.com>
 2021-03-15 09:27:20 +01:00
Marco Pracucci b92c03023d
Optimized vector selector 
Signed-off-by: Marco Pracucci <marco@pracucci.com>
 2021-03-11 14:32:56 +01:00