Computes the cumulative distribution, that is (number of rows preceding or peers with hypothetical row) / (total rows). The value thus ranges from 1/N to 1.
English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.
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N to 1.cume_dist ( args ) WITHIN GROUP ( ORDER BY sorted_args ) → double precision → double precisionComputes the cumulative distribution, that is (number of rows preceding or peers with hypothetical row) / (total rows). The value thus ranges from 1/
N to 1.cume_dist () → double precision → double precisionReturns the cumulative distribution, that is (number of partition rows preceding or peers with current row) / (total partition rows). The value thus ranges from 1/
N to 1.{"inputs":[{"file":"functions-aggregate.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"31d3dcd36ef353484b4b3535f9f0d1cc239c3910146257fe5178f99b90b501e2","version":"18.7"},{"file":"functions-window.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"439ef40b6ad39f35f5b4543f2cf5766744ce6b7a8c5c75c0b4c0a7c27cbb7574","version":"18.7"},{"file":"functions-aggregate.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"0bf7506d27b71666fc74840a21a8f77c8a92735174f1d05033865961722e457c","version":"18.7"},{"file":"functions-window.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"cf993ee76845c3f6c445b1045d674ce10d648125a8444e263a13384ed0e268f0","version":"18.7"}],"release":"18.7","runtime_remeasured":false,"source_revision":"pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552"}Full definition and evidence JSON
center · PostgreSQL 18 · wiki-repair-20261023:21bc82a0d314b808f0a68802f8e4339eb2d52d9cc764ef8a3d4f3708b8b8d712
Text language: en · wiki-repair-20261023:21bc82a0d314b808f0a68802f8e4339eb2d52d9cc764ef8a3d4f3708b8b8d712