Doc: move some catalogs.sgml entries to the right place.
pg_statistic_ext_data.stxdexpr was listed under the wrong catalog,
as was pg_stats_ext.exprs.  Also there was a bogus entry for
pg_statistic_ext_data.stxexprs.  Apparently a merge failure in
commit
Guillaume Lelarge and Tom Lane
Discussion:
@@ -7518,10 +7518,11 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
<row>
<entry role="catalog_table_entry"><para role="column_definition">
- <structfield>stxexprs</structfield> <type>pg_node_tree</type>
+ <structfield>stxdexpr</structfield> <type>pg_statistic[]</type>
</para>
<para>
- A list of any expressions covered by this statistics object.
+ Per-expression statistics, serialized as an array of
+ <structname>pg_statistic</structname> type
</para></entry>
</row>
</tbody>
@@ -7677,16 +7678,6 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
see <xref linkend="logical-replication-publication"/>.
</para></entry>
</row>
-
- <row>
- <entry role="catalog_table_entry"><para role="column_definition">
- <structfield>stxdexpr</structfield> <type>pg_statistic[]</type>
- </para>
- <para>
- Per-expression statistics, serialized as an array of
- <structname>pg_statistic</structname> type
- </para></entry>
- </row>
</tbody>
</tgroup>
</table>
@@ -12751,16 +12742,7 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
(references <link linkend="catalog-pg-attribute"><structname>pg_attribute</structname></link>.<structfield>attname</structfield>)
</para>
<para>
- Names of the columns included in the extended statistics object
- </para></entry>
- </row>
-
- <row>
- <entry role="catalog_table_entry"><para role="column_definition">
- <structfield>exprs</structfield> <type>text[]</type>
- </para>
- <para>
- Expressions included in the extended statistics object
+ Name of column described by this row
</para></entry>
</row>
@@ -13003,7 +12985,16 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
(references <link linkend="catalog-pg-attribute"><structname>pg_attribute</structname></link>.<structfield>attname</structfield>)
</para>
<para>
- Names of the columns the extended statistics object is defined on
+ Names of the columns included in the extended statistics object
+ </para></entry>
+ </row>
+
+ <row>
+ <entry role="catalog_table_entry"><para role="column_definition">
+ <structfield>exprs</structfield> <type>text[]</type>
+ </para>
+ <para>
+ Expressions included in the extended statistics object
</para></entry>
</row>
