cols="1">
    <thead>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       Column Type
      </para>
      <para>
       Description
      </para></entry>
     </row>
    </thead>

    <tbody>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>oid</structfield> <type>oid</type>
      </para>
      <para>
       Row identifier
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>proname</structfield> <type>name</type>
      </para>
      <para>
       Name of the function
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>pronamespace</structfield> <type>oid</type>
       (references <link linkend="catalog-pg-namespace"><structname>pg_namespace</structname></link>.<structfield>oid</structfield>)
      </para>
      <para>
       The OID of the namespace that contains this function
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>proowner</structfield> <type>oid</type>
       (references <link linkend="catalog-pg-authid"><structname>pg_authid</structname></link>.<structfield>oid</structfield>)
      </para>
      <para>
       Owner of the function
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>prolang</structfield> <type>oid</type>
       (references <link linkend="catalog-pg-language"><structname>pg_language</structname></link>.<structfield>oid</structfield>)
      </para>
      <para>
       Implementation language or call interface of this function
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>procost</structfield> <type>float4</type>
      </para>
      <para>
       Estimated execution cost (in units of
       <xref linkend="guc-cpu-operator-cost"/>); if <structfield>proretset</structfield>,
       this is cost per row returned
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>prorows</structfield> <type>float4</type>
      </para>
      <para>
       Estimated number of result rows (zero if not <structfield>proretset</structfield>)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>provariadic</structfield> <type>oid</type>
       (references <link linkend="catalog-pg-type"><structname>pg_type</structname></link>.<structfield>oid</structfield>)
      </para>
      <para>
       Data type of the variadic array parameter's elements,
       or zero if the function does not have a variadic parameter
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>prosupport</structfield> <type>regproc</type>
       (references <link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.<structfield>oid</structfield>)
      </para>
      <para>
       Planner support function for this function
       (see <xref linkend="xfunc-optimization"/>), or zero if none
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>prokind</structfield> <type>char</type>
      </para>
      <para>
       <literal>f</literal> for a normal function, <literal>p</literal>
       for a procedure, <literal>a</literal> for an aggregate function, or
       <literal>w</literal> for a window function
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>prosecdef</structfield> <type>bool</type>
      </para>