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-rw-r--r--doc/src/sgml/system-views.sgml20
1 files changed, 18 insertions, 2 deletions
diff --git a/doc/src/sgml/system-views.sgml b/doc/src/sgml/system-views.sgml
index dd468b31ea7..be90edd0e20 100644
--- a/doc/src/sgml/system-views.sgml
+++ b/doc/src/sgml/system-views.sgml
@@ -2561,10 +2561,26 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
<structfield>failover</structfield> <type>bool</type>
</para>
<para>
- True if this is a logical slot enabled to be synced to the standbys.
- Always false for physical slots.
+ True if this is a logical slot enabled to be synced to the standbys
+ so that logical replication can be resumed from the new primary
+ after failover. Always false for physical slots.
</para></entry>
</row>
+
+ <row>
+ <entry role="catalog_table_entry"><para role="column_definition">
+ <structfield>synced</structfield> <type>bool</type>
+ </para>
+ <para>
+ True if this is a logical slot that was synced from a primary server.
+ On a hot standby, the slots with the synced column marked as true can
+ neither be used for logical decoding nor dropped manually. The value
+ of this column has no meaning on the primary server; the column value on
+ the primary is default false for all slots but may (if leftover from a
+ promoted standby) also be true.
+ </para></entry>
+ </row>
+
</tbody>
</tgroup>
</table>