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docs: mention that quantiles can't be used in sharded mode

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https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4942
Signed-off-by: hagen1778 <roman@victoriametrics.com>
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hagen1778 2023-09-07 10:06:09 +02:00
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docs/stream-aggregation.md
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@ -559,6 +559,9 @@ The `phi` must be in the range `[0..1]`, where `0` means `0th` percentile, while
The results of `quantiles(phi1, ..., phiN)` with aggregation interval of `1m`
is equal to the `quantiles_over_time("quantile", phi1, ..., phiN, some_histogram_bucket[1m])` query.
Please note, `quantiles` aggregation won't produce correct results when vmagent is in [cluster mode](#cluster-mode)
since percentiles should be calculated only on the whole matched data set.
## Aggregating by labels
All the labels for the input metrics are preserved by default in the output metrics. For example,