Prevent <link

linkend="ddl-constraints-check-constraints"><literal>CHECK</></link>

constraints from referencing system columns, except

<structname>tableoid</> (Amit Kapila)

<structfield>tableoid</> (Amit Kapila)

</para>

<para>

<listitem>

<para>

Remove system column <link

linkend="catalog-pg-class"><structname>pg_class.reltoastidxid</></link>

linkend="catalog-pg-class"><structfield>pg_class.reltoastidxid</></link>

(Michael Paquier)

</para>

</listitem>

<listitem>

<para>

Remove system column <link

linkend="catalog-pg-rewrite"><structname>pg_rewrite.ev_attr</></link>

linkend="catalog-pg-rewrite"><structfield>pg_rewrite.ev_attr</></link>

(Kevin Grittner)

</para>

<para>

This appears in <link

linkend="pg-stat-all-tables-view"><structname>pg_stat_all_tables.n_mod_since_analyze</></link>.

linkend="pg-stat-all-tables-view"><structfield>pg_stat_all_tables.n_mod_since_analyze</></link>.

</para>

</listitem>

<listitem>

<para>

Add <structname>xid</> and <link

linkend="ddl-system-columns"><structname>xmin</></link>

Add <structfield>xid</> and <link

linkend="ddl-system-columns"><structfield>xmin</></link>

to system views <link

linkend="pg-stat-activity-view"><structname>pg_stat_activity</></link>

and <link

Add <link

linkend="information-schema"><structname>information_schema</></link>

column <link

linkend="infoschema-parameters"><structname>parameters.parameter_default</></link>

linkend="infoschema-parameters"><structfield>parameters.parameter_default</></link>

(Peter Eisentraut)

</para>

</listitem>

<listitem>

<para>

Have <link

linkend="infoschema-schemata"><structname>information_schema.schemata</></link>

linkend="infoschema-schemata"><structfield>information_schema.schemata</></link>

show all accessible schema (Peter Eisentraut)

</para>

<para>

This allows monitoring tools to only fetch query text for newly

created entries, as reported in <structname>queryid</>.

created entries, as reported in <structfield>queryid</>.

</para>

</listitem>