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* feat: add DDSketch quantile * Fix StyleCheck * Move quantileddsketch.md under right dir * Update stateless test number and add stateful test * Throw exception when relative accuracy is too low * Update test number * Fix undefined behaviour for empty store * Fix quantileGK test * Update test numbers * Update src/AggregateFunctions/ * Throw exception on out of range values * Update relative accuracy docs and add encoding details * Address review comments and suggestions * Remove unused function * Address alexey review comments * Remove unused function isFloat64FieldType * Throw error on invalid relative accuracy * Simplify mapping * Address remaining review comments * Add effective memory usage suggestions * Fix Stylecheck * Fix fast test * Incorporate bins capacity suggestion * Fix fuzzer * Remove inheritance in Mapping, Store and DDSketch * Add checks for bin resizing * Add note about the binary compatible implementation
2.1 KiB
2.1 KiB
| slug | sidebar_position |
|---|---|
| /en/sql-reference/aggregate-functions/reference/median | 212 |
median
The median* functions are the aliases for the corresponding quantile* functions. They calculate median of a numeric data sample.
Functions:
median— Alias for quantile.medianDeterministic— Alias for quantileDeterministic.medianExact— Alias for quantileExact.medianExactWeighted— Alias for quantileExactWeighted.medianTiming— Alias for quantileTiming.medianTimingWeighted— Alias for quantileTimingWeighted.medianTDigest— Alias for quantileTDigest.medianTDigestWeighted— Alias for quantileTDigestWeighted.medianBFloat16— Alias for quantileBFloat16.medianDDSketch— Alias for quantileDDSketch.
Example
Input table:
┌─val─┐
│ 1 │
│ 1 │
│ 2 │
│ 3 │
└─────┘
Query:
SELECT medianDeterministic(val, 1) FROM t;
Result:
┌─medianDeterministic(val, 1)─┐
│ 1.5 │
└─────────────────────────────┘