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Doc: Add documentation for sequence synchronization.

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Add documentation describing sequence synchronization support in logical
replication. It explains how sequence changes are synchronized from the
publisher to the subscriber, the configuration requirements, and provide
examples illustrating setup and usage.

Additionally, document the pg_get_sequence_data() function, which allows
users to query sequence details on the publisher to determine when to
refresh corresponding sequences on the subscriber.

Author: Vignesh C <vignesh21@gmail.com>
Reviewed-by: Peter Smith <smithpb2250@gmail.com>
Reviewed-by: shveta malik <shveta.malik@gmail.com>
Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Discussion: https://postgr.es/m/CAA4eK1LC+KJiAkSrpE_NwvNdidw9F2os7GERUeSxSKv71gXysQ@mail.gmail.com
This commit is contained in:
Amit Kapila
2025-11-12 08:38:32 +00:00
parent 2ddc8d9e9b
commit 55cefadde8
7 changed files with 350 additions and 41 deletions
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doc/src/sgml/monitoring.sgml
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@@ -2045,8 +2045,9 @@ description | Waiting for a newly initialized WAL file to reach durable storage
</para>
<para>
Type of the subscription worker process. Possible types are
<literal>apply</literal>, <literal>parallel apply</literal>, and
<literal>table synchronization</literal>.
<literal>apply</literal>, <literal>parallel apply</literal>,
<literal>table synchronization</literal>, and
<literal>sequence synchronization</literal>.
</para></entry>
</row>