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Extend pg_publication_tables to display column list and row filter.

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Commit 923def9a53 and 52e4f0cd47 allowed to specify column lists and row
filters for publication tables. This commit extends the
pg_publication_tables view and pg_get_publication_tables function to
display that information.

This information will be useful to users and we also need this for the
later commit that prohibits combining multiple publications with different
column lists for the same table.

Author: Hou Zhijie
Reviewed By: Amit Kapila, Alvaro Herrera, Shi Yu, Takamichi Osumi
Discussion: https://postgr.es/m/202204251548.mudq7jbqnh7r@alvherre.pgsql
This commit is contained in:
Amit Kapila
2022-05-19 08:20:55 +05:30
parent 62221ef187
commit 0ff20288e1
8 changed files with 126 additions and 44 deletions
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27
doc/src/sgml/catalogs.sgml
View File

@ -9691,7 +9691,7 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
<row>
<entry><link linkend="view-pg-publication-tables"><structname>pg_publication_tables</structname></link></entry>
<entry>publications and their associated tables</entry>
<entry>publications and information of their associated tables</entry>
</row>
<row>
@ -11635,8 +11635,8 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
<para>
The view <structname>pg_publication_tables</structname> provides
information about the mapping between publications and the tables they
contain. Unlike the underlying catalog
information about the mapping between publications and information of
tables they contain. Unlike the underlying catalog
<link linkend="catalog-pg-publication-rel"><structname>pg_publication_rel</structname></link>,
this view expands publications defined as <literal>FOR ALL TABLES</literal>
and <literal>FOR ALL TABLES IN SCHEMA</literal>, so for such publications
@ -11687,6 +11687,27 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
Name of table
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>attnames</structfield> <type>name[]</type>
(references <link linkend="catalog-pg-attribute"><structname>pg_attribute</structname></link>.<structfield>attname</structfield>)
</para>
<para>
Names of table columns included in the publication. This contains all
the columns of the table when the user didn't specify the column list
for the table.
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>rowfilter</structfield> <type>text</type>
</para>
<para>
Expression for the table's publication qualifying condition
</para></entry>
</row>
</tbody>
</tgroup>
</table>