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Scalar FunctionsOther Functions

rank_tdigest

Return the approximate count of items ≤ `value` in a t-digest / DDSketch sketch produced by the `tdigest()` aggregate.

The result is an approximation — all items in the bucket containing value are counted together.

Syntax

rank_tdigest(sketch, value)

Parameters

Prop

Type

Returns: real

Examples

Example 1

print rank_tdigest(toscalar(), 50)
print_0 (real)
50.0

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