role="func_signature">
        <indexterm>
         <primary>reverse</primary>
        </indexterm>
        <function>reverse</function> ( <type>bytea</type> )
        <returnvalue>bytea</returnvalue>
       </para>
       <para>
        Reverses the order of the bytes in the binary string.
       </para>
       <para>
        <literal>reverse('\xabcd'::bytea)</literal>
        <returnvalue>\xcdab</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>set_bit</primary>
        </indexterm>
        <function>set_bit</function> ( <parameter>bytes</parameter> <type>bytea</type>,
        <parameter>n</parameter> <type>bigint</type>,
        <parameter>newvalue</parameter> <type>integer</type> )
        <returnvalue>bytea</returnvalue>
       </para>
       <para>
        Sets <link linkend="functions-zerobased-note">n'th</link> bit in
        binary string to <parameter>newvalue</parameter>.
       </para>
       <para>
        <literal>set_bit('\x1234567890'::bytea, 30, 0)</literal>
        <returnvalue>\x1234563890</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>set_byte</primary>
        </indexterm>
        <function>set_byte</function> ( <parameter>bytes</parameter> <type>bytea</type>,
        <parameter>n</parameter> <type>integer</type>,
        <parameter>newvalue</parameter> <type>integer</type> )
        <returnvalue>bytea</returnvalue>
       </para>
       <para>
        Sets <link linkend="functions-zerobased-note">n'th</link> byte in
        binary string to <parameter>newvalue</parameter>.
       </para>
       <para>
        <literal>set_byte('\x1234567890'::bytea, 4, 64)</literal>
        <returnvalue>\x1234567840</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>sha224</primary>
        </indexterm>
        <function>sha224</function> ( <type>bytea</type> )
        <returnvalue>bytea</returnvalue>
       </para>
       <para>
        Computes the SHA-224 <link linkend="functions-hash-note">hash</link>
        of the binary string.
       </para>
       <para>
        <literal>sha224('abc'::bytea)</literal>
        <returnvalue>\x23097d223405d8228642a477bda2&zwsp;55b32aadbce4bda0b3f7e36c9da7</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>sha256</primary>
        </indexterm>
        <function>sha256</function> ( <type>bytea</type> )
        <returnvalue>bytea</returnvalue>
       </para>
       <para>
        Computes the SHA-256 <link linkend="functions-hash-note">hash</link>
        of the binary string.
       </para>
       <para>
        <literal>sha256('abc'::bytea)</literal>
        <returnvalue>\xba7816bf8f01cfea414140de5dae2223&zwsp;b00361a396177a9cb410ff61f20015ad</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>sha384</primary>
        </indexterm>
        <function>sha384</function> ( <type>bytea</type> )
        <returnvalue>bytea</returnvalue>
       </para>
       <para>
        Computes the SHA-384 <link linkend="functions-hash-note">hash</link>
        of the binary string.
       </para>
       <para>
        <literal>sha384('abc'::bytea)</literal>
        <returnvalue>\xcb00753f45a35e8bb5a03d699ac65007&zwsp;272c32ab0eded1631a8b605a43ff5bed&zwsp;8086072ba1e7cc2358baeca134c825a7</returnvalue>
       </para></entry>
      </row>

      <row>
       <entry role="func_table_entry"><para role="func_signature">
        <indexterm>
         <primary>sha512</primary>
        </indexterm>
        <function>sha512</function> (