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pg_log_standby_snapshot

Take a snapshot of running transactions and write it to WAL, without having to wait for bgwriter or checkpointer to log one. This is useful for logical decoding on standby, as logical slot creation has to wait until such a record is replayed on the standby.

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

group
admin
group label
系统管理函数
lang
en
layout
table-new
pages
functions-admin.html
prose only
false

Definition PG 18

Take a snapshot of running transactions and write it to WAL, without having to wait for bgwriter or checkpointer to log one. This is useful for logical decoding on standby, as logical slot creation has to wait until such a record is replayed on the standby.

Signatures and overloads

pg_log_standby_snapshot () → pg_lsn → pg_lsn
Take a snapshot of running transactions and write it to WAL, without having to wait for bgwriter or checkpointer to log one. This is useful for logical decoding on standby, as logical slot creation has to wait until such a record is replayed on the standby.

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Complete source facts

documentation revision

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Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:f82043adc0ae74bcb8ac7677c589bf76d4b8767d9404127603fe6839b4fa275e

Text language: en · wiki-repair-20261023:f82043adc0ae74bcb8ac7677c589bf76d4b8767d9404127603fe6839b4fa275e