Details
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Sub-task
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Status: Closed
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Major
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Resolution: Won't Fix
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3.0.0
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None
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None
Description
| Function | Direct Argument Type(s) | Aggregated Argument Type(s) | Return Type | Partial Mode | Description |
|---|---|---|---|---|---|
| mode() WITHIN GROUP (ORDER BY sort_expression) | any sortable type | same as sort expression | No | returns the most frequent input value (arbitrarily choosing the first one if there are multiple equally-frequent results) | |
| percentile_cont(fraction) WITHIN GROUP (ORDER BY sort_expression) | double precision | double precision or interval | same as sort expression | No | continuous percentile: returns a value corresponding to the specified fraction in the ordering, interpolating between adjacent input items if needed |
| percentile_cont(fractions) WITHIN GROUP (ORDER BY sort_expression) | double precision[] | double precision or interval | array of sort expression's type | No | multiple continuous percentile: returns an array of results matching the shape of the fractions parameter, with each non-null element replaced by the value corresponding to that percentile |
| percentile_disc(fraction) WITHIN GROUP (ORDER BY sort_expression) | double precision | any sortable type | same as sort expression | No | discrete percentile: returns the first input value whose position in the ordering equals or exceeds the specified fraction |
| percentile_disc(fractions) WITHIN GROUP (ORDER BY sort_expression) | double precision[] | any sortable type | array of sort expression's type | No | multiple discrete percentile: returns an array of results matching the shape of the fractions parameter, with each non-null element replaced by the input value corresponding to that percentile |
https://www.postgresql.org/docs/11/functions-aggregate.html#FUNCTIONS-ORDEREDSET-TABLE