<sect2>

<title>Overview</title>

<para>

Major enhancements in <productname>PostgreSQL</productname> 13 include:

</para>

<!-- Items in this list summarize one or more items below -->

<para>

<productname>PostgreSQL</productname> 13 contains many new features and

enhancements, including:

</para>

<itemizedlist>

<listitem>

<para>TBD</para>

<para>

Space savings and performance gains from de-duplication of B-tree

index entries

</para>

</listitem>

<listitem>

<para>

Improved performance for queries that use aggregates or partitioned

tables

</para>

</listitem>

<listitem>

<para>

Better query planning when using extended statistics

</para>

</listitem>

<listitem>

<para>

Parallelized vacuuming of B-tree indexes

</para>

</listitem>

<listitem>

<para>

Incremental sorting

</para>

</listitem>

</itemizedlist>

<para>

The above items are explained in more detail in the sections below.

</para>

<para>

The above items and other new features

of <productname>PostgreSQL</productname> 13 are explained in more

detail in the sections below.

</para>

</sect2>

-->

<para>

Add btree indexdeduplication processing columns to pageinspect output

Add btree indexde-duplication processing columns to pageinspect output

(Peter Geoghegan)

</para>

</listitem>