<listitem>

<para>

Major improvements to partitioning:

<itemizedlist>

<listitem>

<para>

Partitioning by a hash key

</para>

</listitem>

<listitem>

<para>

<command>UPDATE</command> statements that change a partition key

now move affected rows to the appropriate partitions

</para>

</listitem>

<listitem>

<para>

Improved <command>SELECT</command> query performance due to

enhanced partition elimination during query processing and

execution

</para>

</listitem>

<listitem>

<para>

Support for <literal>PRIMARY KEY</literal>, <literal>FOREIGN

KEY</literal>, indexes, and triggers on partitioned tables

</para>

</listitem>

</itemizedlist>

</para>

</listitem>

<listitem>

<para>

Improvements to parallelism:

<itemizedlist>

<listitem>

<para>

Parallelized hash joins

</para>

</listitem>

<listitem>

<para>

Parallelized <command>CREATE INDEX</command> for B-tree indexes

</para>

</listitem>

<listitem>

<para>

Parallelized <command>CREATE TABLE .. AS</command>,

<command>CREATE MATERIALIZED VIEW</command>, and certain

queries using <literal>UNION</literal>

</para>

</listitem>

</itemizedlist>

</para>

</listitem>

<listitem>

<para>

SQL stored procedures, with support for embedded transactions

</para>

</listitem>

<listitem>

<para>

JIT compilation of some SQL code, including support for fast evaluation

of expressions

</para>

</listitem>

<listitem>

<para>

Window functions now support all options shown in the SQL:2011

standard, including <literal>RANGE <replaceable>distance</replaceable>

PRECEDING/FOLLOWING</literal>, <literal>GROUPS</literal> mode, and

frame exclusion options

</para>

</listitem>

<listitem>

<para>

Channel binding for SCRAM authentication, to prevent potential

man-in-the-middle attacks on database connections

</para>

</listitem>

<listitem>

<para>

Many other useful performance improvements, including making

<command>ALTER TABLE .. ADD COLUMN</command> with a

non-null column default faster

</para>

</listitem>