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Doc: Fix pg_copy_logical_replication_slot description.

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This commit documents that the failover option is not copied when using
the pg_copy_logical_replication_slot function.

In passing, we modify the comments in the function clarifying the reason
for this behavior.

Reported-by: <duffieldzane@gmail.com>
Author: Hou Zhijie <houzj.fnst@fujitsu.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Backpatch-through: 17, where it was introduced
Discussion: https://postgr.es/m/173976850802.682632.11315364077431550250@wrigleys.postgresql.org
This commit is contained in:
Amit Kapila
2025-02-25 09:42:07 +05:30
parent 15601fa21a
commit 5b8f2ccc0a
2 changed files with 16 additions and 7 deletions
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doc/src/sgml/func.sgml
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@ -29374,6 +29374,10 @@ postgres=# SELECT '0/0'::pg_lsn + pd.segment_number * ps.setting::int + :offset
from the same <acronym>LSN</acronym> as the source logical slot. Both
<parameter>temporary</parameter> and <parameter>plugin</parameter> are
optional; if they are omitted, the values of the source slot are used.
The <literal>failover</literal> option of the source logical slot
is not copied and is set to <literal>false</literal> by default. This
is to avoid the risk of being unable to continue logical replication
after failover to standby where the slot is being synchronized.
</para></entry>
</row>