Add to_regprocedure() and to_regoperator().

These are natural complements to the functions added by commit
0886fc6a5c75b294544263ea979b9cf6195407d9, but they weren't included
in the original patch for some reason.  Add them.

Patch by me, per a complaint by Tom Lane.  Review by Tatsuo
Ishii.

1 files changed, 24 insertions, 4 deletions

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 1759c8876c4..148f0bc2378 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -15294,10 +15294,18 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
    </indexterm>
 
    <indexterm>
+    <primary>to_regprocedure</primary>
+   </indexterm>
+
+   <indexterm>
     <primary>to_regoper</primary>
    </indexterm>
 
    <indexterm>
+    <primary>to_regoperator</primary>
+   </indexterm>
+
+   <indexterm>
     <primary>to_regtype</primary>
    </indexterm>
 
@@ -15482,11 +15490,21 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
        <entry>get the oid of the named function</entry>
       </row>
       <row>
+       <entry><literal><function>to_regprocedure(<parameter>func_name</parameter>)</function></literal></entry>
+       <entry><type>regprocedure</type></entry>
+       <entry>get the oid of the named function</entry>
+      </row>
+      <row>
        <entry><literal><function>to_regoper(<parameter>operator_name</parameter>)</function></literal></entry>
        <entry><type>regoper</type></entry>
        <entry>get the oid of the named operator</entry>
       </row>
       <row>
+       <entry><literal><function>to_regoperator(<parameter>operator_name</parameter>)</function></literal></entry>
+       <entry><type>regoperator</type></entry>
+       <entry>get the oid of the named operator</entry>
+      </row>
+      <row>
        <entry><literal><function>to_regtype(<parameter>type_name</parameter>)</function></literal></entry>
        <entry><type>regtype</type></entry>
        <entry>get the oid of the named type</entry>
@@ -15658,10 +15676,12 @@ SELECT collation for ('foo' COLLATE "de_DE");
 
   <para>
    The <function>to_regclass</function>, <function>to_regproc</function>,
-   <function>to_regoper</function> and <function>to_regtype</function>
-   translate relation, function, operator, and type names to objects of
-   type <type>regclass</>, <type>regproc</>, <type>regoper</> and
-   <type>regtype</>, respectively.  These functions differ from a cast from
+   <function>to_regprocedure</function>, <function>to_regoper</function>,
+   <function>to_regoperator</function>, and <function>to_regtype</function>
+   functions translate relation, function, operator, and type names to objects
+   of type <type>regclass</>, <type>regproc</>, <type>regprocedure</type>,
+   <type>regoper</>, <type>regoperator</type>, and <type>regtype</>,
+   respectively.  These functions differ from a cast from
    text in that they don't accept a numeric OID, and that they return null
    rather than throwing an error if the name is not found (or, for
    <function>to_regproc</function> and <function>to_regoper</function>, if