pg_snapshot_xmin

Returns the xmin of a snapshot.

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

Reading PG 18·Select a recorded version

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group: info
group label: 系统信息函数和操作符
lang: en
layout: table-new
pages: functions-info.html
prose only: false

Definition PG 18

Returns the xmin of a snapshot.

Signatures and overloads

pg_snapshot_xmin ( pg_snapshot ) → xid8 → xid8

Returns the xmin of a snapshot.

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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-20261023:6888eb6337769b5c145af2714aec204afc8594774aa27e1aab8a97be96f9f601

Text language: en · wiki-repair-20261023:6888eb6337769b5c145af2714aec204afc8594774aa27e1aab8a97be96f9f601