prevents sharding avg and avg_over_time for unshardable children #6204
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./tools/diff_coverage.sh ../loki-main/test_results.txt test_results.txt ingester,distributor,querier,querier/queryrange,iter,storage,chunkenc,logql,loki Change in test coverage per package. Green indicates 0 or positive change, red indicates that test coverage for a package fell. + ingester 0%
- distributor -0.3%
+ querier 0%
+ querier/queryrange 0%
+ iter 0%
+ storage 0%
+ chunkenc 0%
+ logql 0%
- loki -0.7% |
This was referenced Jun 28, 2022
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This fixes a bug in query planning which didn't check if the child-expressions of
avgwere shardable, which led to someunimplementederrors on the frontend. It's pretty unlikely to run into this (i.e.avg(avg_over_time({job=~"myapps.*"} |= "stats" | json busy="utilization" | unwrap busy [5m]))).I've run this in a dev cluster as well, everything looking 👍 .
In the future, we can consider mapping
avg_over_time->sum_over_time / count_over_time🤔Closes #6202