Add documentation for CREATE/ALTER/DROP PROTOCOL

Close: #1057
Fix: #912

doc/src/sgml/ref/alter_protocol.sgml

+<!--
+PostgreSQL documentation
+-->
+
+<refentry id="SQL-ALTERPROTOCOL">
+ <refmeta>
+  <refentrytitle id="sql-alterprotocol-title">ALTER PROTOCOL</refentrytitle>
+  <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+  <refname>ALTER PROTOCOL</refname>
+  <refpurpose>create a custom data access protocol</refpurpose>
+ </refnamediv>
+
+ <indexterm zone="sql-alterprotocol">
+  <primary>ALTER PROTOCOL</primary>
+ </indexterm>
+
+ <refsynopsisdiv>
+<synopsis>
+
+ALTER PROTOCOL name RENAME TO newname
+
+ALTER PROTOCOL name OWNER TO newowner
+
+</synopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+  <title>Description</title>
+
+  
+ </refsect1>
+
+ <refsect1>
+  <title>Parameters</title>
+
+ </refsect1>
+
+ <refsect1>
+  <title>Notes</title>
+
+ </refsect1>
+
+ <refsect1>
+  <title>Examples</title>
+ </refsect1>
+
+ <refsect1>
+  <title>Compatibility</title>
+ </refsect1>
+
+ <refsect1>
+  <title>See Also</title>
+
+ </refsect1>
+
+</refentry>

doc/src/sgml/ref/create_protocol.sgml

+<!--
+PostgreSQL documentation
+-->
+
+<refentry id="SQL-CREATEPROTOCOL">
+ <refmeta>
+  <refentrytitle id="sql-createprotocol-title">CREATE PROTOCOL</refentrytitle>
+  <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+  <refname>CREATE PROTOCOL</refname>
+  <refpurpose>create a custom data access protocol</refpurpose>
+ </refnamediv>
+
+ <indexterm zone="sql-createprotocol">
+  <primary>CREATE PROTOCOL</primary>
+ </indexterm>
+
+ <refsynopsisdiv>
+<synopsis>
+
+CREATE [TRUSTED] PROTOCOL name (
+   [readfunc='read_call_handler'] [, writefunc='write_call_handler']
+   [, validatorfunc='validate_handler' ])
+
+</synopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+  <title>Description</title>
+
+  
+ </refsect1>
+
+ <refsect1>
+  <title>Parameters</title>
+
+ </refsect1>
+
+ <refsect1>
+  <title>Notes</title>
+
+ </refsect1>
+
+ <refsect1>
+  <title>Examples</title>
+ </refsect1>
+
+ <refsect1>
+  <title>Compatibility</title>
+ </refsect1>
+
+ <refsect1>
+  <title>See Also</title>
+
+ </refsect1>
+
+</refentry>

doc/src/sgml/ref/drop_protocol.sgml

+<!--
+PostgreSQL documentation
+-->
+
+<refentry id="SQL-DROPPROTOCOL">
+ <refmeta>
+  <refentrytitle id="sql-dropprotocol-title">DROP PROTOCOL</refentrytitle>
+  <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+  <refname>DROP PROTOCOL</refname>
+  <refpurpose>remove a custom access protocol</refpurpose>
+ </refnamediv>
+
+ <indexterm zone="sql-dropprotocol">
+  <primary>DROP PROTOCOL</primary>
+ </indexterm>
+
+ <refsynopsisdiv>
+<synopsis>
+
+DROP PROTOCOL [IF EXISTS] name
+
+</synopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+  <title>Description</title>
+
+  
+ </refsect1>
+
+ <refsect1>
+  <title>Parameters</title>
+
+ </refsect1>
+
+ <refsect1>
+  <title>Notes</title>
+
+ </refsect1>
+
+ <refsect1>
+  <title>Examples</title>
+ </refsect1>
+
+ <refsect1>
+  <title>Compatibility</title>
+ </refsect1>
+
+ <refsect1>
+  <title>See Also</title>
+
+ </refsect1>
+
+</refentry>