isfinite

Test for finite date (not +/-infinity)

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

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group: datetime
group label: 时间/日期函数和操作符
lang: en
layout: table-new
pages: functions-datetime.html
prose only: false

Definition PG 18

Test for finite date (not +/-infinity)

Signatures and overloads

isfinite ( date ) → boolean → boolean

Test for finite date (not +/-infinity)

isfinite ( timestamp ) → boolean → boolean

Test for finite timestamp (not +/-infinity)

isfinite ( interval ) → boolean → boolean

Test for finite interval (not +/-infinity)

Compare versions

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-20261023:7cb5d318401fd379183791e812ed11a7761f5806e29e7aaee4cac2d10bf61ead

Text language: en · wiki-repair-20261023:7cb5d318401fd379183791e812ed11a7761f5806e29e7aaee4cac2d10bf61ead