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FUNCTIONS / AGGREGATE FUNCTIONS

percent_rank

Read PG 18 manual ↗

Computes the relative rank of the hypothetical row, that is (rank - 1) / (total rows - 1).

Signatures & examples

percent_rank ( args ) WITHIN GROUP ( ORDER BY sorted_args ) → double precision
Computes the relative rank of the hypothetical row, that is (rank - 1) / (total rows - 1). The value thus ranges from 0 to 1 inclusive.
percent_rank () → double precision
Returns the relative rank of the current row, that is (rank - 1) / (total partition rows - 1). The value thus ranges from 0 to 1 inclusive.
Version history 2
  1. PG 12 → 13changed
  2. PG 9.3 → 9.4changed

Definition snapshot: 2026-09-14T13:14:25.684213+00:00@99e6866c · English manual source