diff options
Diffstat (limited to 'doc/src/sgml/ref/create_subscription.sgml')
| -rw-r--r-- | doc/src/sgml/ref/create_subscription.sgml | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/doc/src/sgml/ref/create_subscription.sgml b/doc/src/sgml/ref/create_subscription.sgml index 90bd70050dd..eba72c6af62 100644 --- a/doc/src/sgml/ref/create_subscription.sgml +++ b/doc/src/sgml/ref/create_subscription.sgml @@ -228,13 +228,29 @@ CREATE SUBSCRIPTION <replaceable class="parameter">subscription_name</replaceabl </varlistentry> <varlistentry> - <term><literal>streaming</literal> (<type>boolean</type>)</term> + <term><literal>streaming</literal> (<type>enum</type>)</term> <listitem> <para> Specifies whether to enable streaming of in-progress transactions - for this subscription. By default, all transactions - are fully decoded on the publisher and only then sent to the - subscriber as a whole. + for this subscription. The default value is <literal>off</literal>, + meaning all transactions are fully decoded on the publisher and only + then sent to the subscriber as a whole. + </para> + + <para> + If set to <literal>on</literal>, the incoming changes are written to + temporary files and then applied only after the transaction is + committed on the publisher and received by the subscriber. + </para> + + <para> + If set to <literal>parallel</literal>, incoming changes are directly + applied via one of the parallel apply workers, if available. If no + parallel apply worker is free to handle streaming transactions then + the changes are written to temporary files and applied after the + transaction is committed. Note that if an error happens in a + parallel apply worker, the finish LSN of the remote transaction + might not be reported in the server log. </para> </listitem> </varlistentry> |