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Diffstat (limited to 'doc/src/sgml/func.sgml')
| -rw-r--r-- | doc/src/sgml/func.sgml | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index 4211d31f307..bf4c61ccfbd 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -27074,6 +27074,21 @@ postgres=# SELECT '0/0'::pg_lsn + pd.segment_number * ps.setting::int + :offset prepared with <xref linkend="sql-prepare-transaction"/>. </para></entry> </row> + <row> + <entry role="func_table_entry"><para role="func_signature"> + <indexterm> + <primary>pg_log_standby_snapshot</primary> + </indexterm> + <function>pg_log_standby_snapshot</function> () + <returnvalue>pg_lsn</returnvalue> + </para> + <para> + Take a snapshot of running transactions and write it to WAL, without + having to wait 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. + </para></entry> + </row> </tbody> </tgroup> </table> |