ln

Natural logarithm

English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.

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group: math
group label: 数学函数和操作符
lang: en
layout: table-new
pages: functions-math.html
prose only: false

Definition PG 18

Natural logarithm

Signatures and overloads

ln ( numeric ) → numeric → numeric

Natural logarithm

ln ( double precision ) → double precision → double precision

Natural logarithm

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Complete source facts

documentation revision

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Source references

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:e3c2207d6d6a88a6d04e6e100e98022d8e67ea1a4f7c1112bbda6a78558e6694

Text language: en · wiki-repair-20261023:e3c2207d6d6a88a6d04e6e100e98022d8e67ea1a4f7c1112bbda6a78558e6694