*** a/doc/src/sgml/ref/create_table.sgml
--- b/doc/src/sgml/ref/create_table.sgml
***************
*** 163,169 **** CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXI
       <para>
        Optionally, <literal>GLOBAL</literal> or <literal>LOCAL</literal>
        can be written before <literal>TEMPORARY</> or <literal>TEMP</>.
!       This makes no difference in <productname>PostgreSQL</>, but see
        <xref linkend="sql-createtable-compatibility"
        endterm="sql-createtable-compatibility-title">.
       </para>
--- 163,170 ----
       <para>
        Optionally, <literal>GLOBAL</literal> or <literal>LOCAL</literal>
        can be written before <literal>TEMPORARY</> or <literal>TEMP</>.
!       This presently makes no difference in <productname>PostgreSQL</>
!       and is deprecated; see
        <xref linkend="sql-createtable-compatibility"
        endterm="sql-createtable-compatibility-title">.
       </para>
***************
*** 1310,1316 **** CREATE TABLE employees OF employee_type (
      <productname>PostgreSQL</productname> does not have.
      For compatibility's sake, <productname>PostgreSQL</productname> will
      accept the <literal>GLOBAL</literal> and <literal>LOCAL</literal> keywords
!     in a temporary table declaration, but they have no effect.
     </para>
  
     <para>
--- 1311,1318 ----
      <productname>PostgreSQL</productname> does not have.
      For compatibility's sake, <productname>PostgreSQL</productname> will
      accept the <literal>GLOBAL</literal> and <literal>LOCAL</literal> keywords
!     in a temporary table declaration, but they have no effect.  This usage is
!     deprecated and may specify standard-compliant behavior in the future.
     </para>
  
     <para>
*** a/src/backend/parser/gram.y
--- b/src/backend/parser/gram.y
***************
*** 2512,2521 **** CreateStmt:	CREATE OptTemp TABLE qualified_name '(' OptTableElementList ')'
   */
  OptTemp:	TEMPORARY					{ $$ = RELPERSISTENCE_TEMP; }
  			| TEMP						{ $$ = RELPERSISTENCE_TEMP; }
! 			| LOCAL TEMPORARY			{ $$ = RELPERSISTENCE_TEMP; }
! 			| LOCAL TEMP				{ $$ = RELPERSISTENCE_TEMP; }
! 			| GLOBAL TEMPORARY			{ $$ = RELPERSISTENCE_TEMP; }
! 			| GLOBAL TEMP				{ $$ = RELPERSISTENCE_TEMP; }
  			| UNLOGGED					{ $$ = RELPERSISTENCE_UNLOGGED; }
  			| /*EMPTY*/					{ $$ = RELPERSISTENCE_PERMANENT; }
  		;
--- 2512,2549 ----
   */
  OptTemp:	TEMPORARY					{ $$ = RELPERSISTENCE_TEMP; }
  			| TEMP						{ $$ = RELPERSISTENCE_TEMP; }
! 			| LOCAL TEMPORARY
! 				{
! 					ereport(WARNING,
! 							(errmsg("LOCAL is deprecated in temporary table creation"),
! 							 errdetail("This may specify different semantics in future versions of PostgreSQL."),
! 							 parser_errposition(@1)));
! 					$$ = RELPERSISTENCE_TEMP;
! 				}
! 			| LOCAL TEMP
! 				{
! 					ereport(WARNING,
! 							(errmsg("LOCAL is deprecated in temporary table creation"),
! 							 errdetail("This may specify different semantics in future versions of PostgreSQL."),
! 							 parser_errposition(@1)));
! 					$$ = RELPERSISTENCE_TEMP;
! 				}
! 			| GLOBAL TEMPORARY
! 				{
! 					ereport(WARNING,
! 							(errmsg("GLOBAL is deprecated in temporary table creation"),
! 							 errdetail("This may specify different semantics in future versions of PostgreSQL."),
! 							 parser_errposition(@1)));
! 					$$ = RELPERSISTENCE_TEMP;
! 				}
! 			| GLOBAL TEMP
! 				{
! 					ereport(WARNING,
! 							(errmsg("GLOBAL is deprecated in temporary table creation"),
! 							 errdetail("This may specify different semantics in future versions of PostgreSQL."),
! 							 parser_errposition(@1)));
! 					$$ = RELPERSISTENCE_TEMP;
! 				}
  			| UNLOGGED					{ $$ = RELPERSISTENCE_UNLOGGED; }
  			| /*EMPTY*/					{ $$ = RELPERSISTENCE_PERMANENT; }
  		;
***************
*** 8920,8940 **** OptTempTableName:
--- 8948,8984 ----
  				}
  			| LOCAL TEMPORARY opt_table qualified_name
  				{
+ 					ereport(WARNING,
+ 							(errmsg("LOCAL is deprecated in temporary table creation"),
+ 							 errdetail("This may specify different semantics in future versions of PostgreSQL."),
+ 							 parser_errposition(@1)));
  					$$ = $4;
  					$$->relpersistence = RELPERSISTENCE_TEMP;
  				}
  			| LOCAL TEMP opt_table qualified_name
  				{
+ 					ereport(WARNING,
+ 							(errmsg("LOCAL is deprecated in temporary table creation"),
+ 							 errdetail("This may specify different semantics in future versions of PostgreSQL."),
+ 							 parser_errposition(@1)));
  					$$ = $4;
  					$$->relpersistence = RELPERSISTENCE_TEMP;
  				}
  			| GLOBAL TEMPORARY opt_table qualified_name
  				{
+ 					ereport(WARNING,
+ 							(errmsg("GLOBAL is deprecated in temporary table creation"),
+ 							 errdetail("This may specify different semantics in future versions of PostgreSQL."),
+ 							 parser_errposition(@1)));
  					$$ = $4;
  					$$->relpersistence = RELPERSISTENCE_TEMP;
  				}
  			| GLOBAL TEMP opt_table qualified_name
  				{
+ 					ereport(WARNING,
+ 							(errmsg("GLOBAL is deprecated in temporary table creation"),
+ 							 errdetail("This may specify different semantics in future versions of PostgreSQL."),
+ 							 parser_errposition(@1)));
  					$$ = $4;
  					$$->relpersistence = RELPERSISTENCE_TEMP;
  				}