Il 23/01/18 18:13, Petr Jelinek ha scritto: > Hi, > > On 23/01/18 15:38, Marco Nenciarini wrote: >> Il 22/01/18 23:18, Petr Jelinek ha scritto: >>> On 22/01/18 19:45, Petr Jelinek wrote: >>> >>> Actually on second look, I don't like the new boolean parameter much. >>> I'd rather we didn't touch the input list and always close only >>> relations opened inside the ExecuteTruncateGuts(). >>> >>> It may mean more list(s) but the current interface is still not clean. >>> >> >> Now ExecuteTruncateGuts unconditionally closes the relations that it >> opens. The caller has now always the responsibility to close the >> relations passed with the explicit_rels list. > > This looks good. > >> >> Version 15 attached. >> > > I see you still do CASCADE on the subscriber though. >
No it doesn't. The following code in worker.c prevents that.
+ /*
+ * Even if we used CASCADE on the upstream master we explicitly
+ * default to replaying changes without further cascading.
+ * This might be later changeable with a user specified option.
+ */
+ cascade = false;
There is also a test that check it works as intended:
+ # should not cascade on replica
+ $node_publisher->safe_psql('postgres', "TRUNCATE tab_rep CASCADE");
+
+ $node_publisher->wait_for_catchup($appname);
+
+ $result = $node_subscriber->safe_psql('postgres',
+ "SELECT count(*), min(a), max(a) FROM tab_notrep_fk");
+ is($result, qq(1|-1|-1),
+ 'check replicated truncate does not cascade on replica');
+
+ $result = $node_subscriber->safe_psql('postgres',
+ "SELECT nextval('seq_notrep')");
+ is($result, qq(102),
+ 'check replicated truncate does not restart identities');
+
Regards,
Marco
--
Marco Nenciarini - 2ndQuadrant Italy
PostgreSQL Training, Services and Support
marco.nenciar...@2ndquadrant.it | www.2ndQuadrant.it
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