Apply sort transform optimizations to compressed chunks #7528
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Currently we transform sorting by `time_bucket` to sorting by `time` only for uncompressed chunks. Implement it for the compressed chunks as well.
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #7528 +/- ##
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+ Coverage 80.06% 82.21% +2.14%
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Files 190 231 +41
Lines 37181 43413 +6232
Branches 9450 10923 +1473
==========================================
+ Hits 29770 35693 +5923
- Misses 2997 3393 +396
+ Partials 4414 4327 -87 ☔ View full report in Codecov by Sentry. |
This reverts commit c401f44.
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Currently we transform sorting by
time_bucketto sorting bytimeonly for uncompressed chunks. Implement it for the compressed chunks as well.In tsbench, some queries are up to 770x faster:
https://grafana.ops.savannah-dev.timescale.com/d/fasYic_4z/compare-akuzm?orgId=1&var-branch=All&var-run1=3997&var-run2=3998&var-threshold=0.02&var-use_historical_thresholds=true&var-threshold_expression=2%20%2A%20percentile_cont%280.90%29&var-exact_suite_version=false&from=now-2d&to=now
Should improve the query plans in this issue: #6310