diff options
Diffstat (limited to 'doc/src/sgml/logicaldecoding.sgml')
| -rw-r--r-- | doc/src/sgml/logicaldecoding.sgml | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/doc/src/sgml/logicaldecoding.sgml b/doc/src/sgml/logicaldecoding.sgml index cbd3aa804f7..5af016cfa95 100644 --- a/doc/src/sgml/logicaldecoding.sgml +++ b/doc/src/sgml/logicaldecoding.sgml @@ -326,11 +326,12 @@ postgres=# select * from pg_logical_slot_get_changes('regression_slot', NULL, NU will work but only while the connection is alive (for example a node restart would break it). Then, the primary may delete system catalog rows that could be needed by the logical decoding on the standby (as it does - not know about the catalog_xmin on the standby). Existing logical slots - on standby also get invalidated if <varname>wal_level</varname> on the - primary is reduced to less than <literal>logical</literal>. + not know about the <literal>catalog_xmin</literal> on the standby). + Existing logical slots on standby also get invalidated if + <varname>wal_level</varname> on the primary is reduced to less than + <literal>logical</literal>. This is done as soon as the standby detects such a change in the WAL stream. - It means that, for walsenders which are lagging (if any), some WAL records up + It means that, for walsenders that are lagging (if any), some WAL records up to the <varname>wal_level</varname> parameter change on the primary won't be decoded. </para> |