database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-30 11:03:19 +03:00
Code Activity

Replicate generated columns when specified in the column list.

Browse Source 
This commit allows logical replication to publish and replicate generated
columns when explicitly listed in the column list. We also ensured that
the generated columns were copied during the initial tablesync when they
were published.

We will allow to replicate generated columns even when they are not
specified in the column list (via a new publication option) in a separate
commit.

The motivation of this work is to allow replication for cases where the
client doesn't have generated columns. For example, the case where one is
trying to replicate data from Postgres to the non-Postgres database.

Author: Shubham Khanna, Vignesh C, Hou Zhijie
Reviewed-by: Peter Smith, Hayato Kuroda, Shlok Kyal, Amit Kapila
Discussion: https://postgr.es/m/B80D17B2-2C8E-4C7D-87F2-E5B4BE3C069E@gmail.com
This commit is contained in:
Amit Kapila
2024-10-30 12:36:26 +05:30
parent f22e436bff
commit 745217a051
10 changed files with 145 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
doc/src/sgml/protocol.sgml
View File

@ -6544,7 +6544,7 @@ psql "dbname=postgres replication=database" -c "IDENTIFY_SYSTEM;"
<para>
Next, the following message part appears for each column included in
the publication (except generated columns):
the publication:
</para>
<variablelist>
@ -7477,7 +7477,7 @@ psql "dbname=postgres replication=database" -c "IDENTIFY_SYSTEM;"
</variablelist>
<para>
Next, one of the following submessages appears for each column (except generated columns):
Next, one of the following submessages appears for each column:
<variablelist>
<varlistentry>

3
doc/src/sgml/ref/create_publication.sgml
View File

@ -89,7 +89,8 @@ CREATE PUBLICATION <replaceable class="parameter">name</replaceable>
<para>
When a column list is specified, only the named columns are replicated.
If no column list is specified, all columns of the table are replicated
The column list can contain generated columns as well. If no column list
is specified, all table columns (except generated columns) are replicated
through this publication, including any columns added later. It has no
effect on <literal>TRUNCATE</literal> commands. See
<xref linkend="logical-replication-col-lists"/> for details about column