↑↓ select ↵ open ⌫ change scope Open full search

PG.CENTER connects PostgreSQL documentation, reference, and ecosystem knowledge. Maintained by Pigsty.

FUNCTIONS / MATHEMATICAL FUNCTIONS AND OPERATORS

ln

Read PG 18 manual ↗

Natural logarithm

Signatures & examples

ln ( numeric ) → numeric
Natural logarithm
ln(2.0) → 0.6931471805599453
ln ( double precision ) → double precision
Natural logarithm
ln(2.0) → 0.6931471805599453
Version history 1
  1. PG 12 → 13changed

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