SET OPTION SQL_QUOTE_SHOW_CREATE = 0 | 1

It makes SHOW CREATE TABLE to quote table and column names.
This is ON by default !

configure.in

@@ -1238,7 +1238,7 @@ AC_CHECK_FUNCS(alarm bmove \
  cuserid fcntl fconvert  \
  getrusage getpwuid getcwd getrlimit getwd index stpcpy locking longjmp \
  perror pread realpath rename \
- socket strnlen madvise \
+ socket strnlen madvise mkstemp \
  strtol strtoul strtoull snprintf tempnam thr_setconcurrency \
  gethostbyaddr_r gethostbyname_r getpwnam \
  bfill bzero bcmp strstr strpbrk strerror\

sql/lex.h

@@ -275,6 +275,7 @@ static SYMBOL symbols[] = {
   { "SQL_LOG_UPDATE",	SYM(SQL_LOG_UPDATE),0,0},
   { "SQL_LOW_PRIORITY_UPDATES", SYM(SQL_LOW_PRIORITY_UPDATES),0,0},
   { "SQL_MAX_JOIN_SIZE",SYM(SQL_MAX_JOIN_SIZE), 0, 0},
+  { "SQL_QUOTE_SHOW_CREATE",SYM(SQL_QUOTE_SHOW_CREATE), 0, 0},
   { "SQL_SAFE_UPDATES", SYM(SQL_SAFE_UPDATES),0,0},
   { "SQL_SELECT_LIMIT", SYM(SQL_SELECT_LIMIT),0,0},
   { "SQL_SMALL_RESULT", SYM(SQL_SMALL_RESULT),0,0},

sql/mysql_priv.h

 /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
-   
+
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
-   
+
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
-   
+
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
@@ -57,7 +57,7 @@ void kill_one_thread(THD *thd, ulong id);
 #endif
 
 /***************************************************************************
-  Configuration parameters 
+  Configuration parameters
 ****************************************************************************/
 
 #define ACL_CACHE_SIZE		256
@@ -83,7 +83,7 @@ void kill_one_thread(THD *thd, ulong id);
 // Number of rows in a reference table when refereed through a not unique key.
 // This value is only used when we don't know anything about the key
 // distribution.
-#define MATCHING_ROWS_IN_OTHER_TABLE 10	
+#define MATCHING_ROWS_IN_OTHER_TABLE 10
 
 /* Don't pack string keys shorter than this (if PACK_KEYS=1 isn't used) */
 #define KEY_DEFAULT_PACK_LENGTH 8
@@ -158,6 +158,7 @@ void kill_one_thread(THD *thd, ulong id);
 #define OPTION_AUTO_COMMIT	OPTION_BIN_LOG*2
 #define OPTION_BEGIN		OPTION_AUTO_COMMIT*2
 #define OPTION_QUICK		OPTION_BEGIN*2
+#define OPTION_QUOTE_SHOW_CREATE OPTION_QUICK*2
 
 #define RAID_BLOCK_SIZE 1024
 

sql/mysqld.cc

@@ -188,7 +188,8 @@ uint test_flags, select_errors=0, dropping_tables=0,ha_open_options=0;
 uint volatile thread_count=0, thread_running=0, kill_cached_threads=0,
 	      wake_thread=0, global_read_lock=0;
 ulong thd_startup_options=(OPTION_UPDATE_LOG | OPTION_AUTO_IS_NULL |
-			   OPTION_BIN_LOG | OPTION_AUTO_COMMIT);
+			   OPTION_BIN_LOG | OPTION_AUTO_COMMIT |
+			   OPTION_QUOTE_SHOW_CREATE );
 uint protocol_version=PROTOCOL_VERSION;
 ulong keybuff_size,sortbuff_size,max_item_sort_length,table_cache_size,
       max_join_size,join_buff_size,tmp_table_size,thread_stack,

sql/sql_show.cc

@@ -37,7 +37,10 @@ static int mysql_find_files(THD *thd,List<char> *files, const char *db,
                             const char *path, const char *wild, bool dir);
 
 static int
-store_create_info(THD *thd, TABLE *table, String* packet);
+store_create_info(THD *thd, TABLE *table, String *packet);
+
+static void
+append_identifier(THD *thd, String *packet, const char *name);
 
 /****************************************************************************
 ** Send list of databases
@@ -668,8 +671,23 @@ mysqld_dump_create_info(THD *thd, TABLE *table, int fd)
   DBUG_RETURN(0);
 }
 
+static void
+append_identifier(THD *thd, String *packet, const char *name)
+{
+  if (thd->options & OPTION_QUOTE_SHOW_CREATE)
+  {
+    packet->append("`", 1);
+    packet->append(name);
+    packet->append("`", 1);
+  }
+  else
+  {
+    packet->append(name);
+  }
+}
+
 static int
-store_create_info(THD *thd, TABLE *table, String* packet)
+store_create_info(THD *thd, TABLE *table, String *packet)
 {
   DBUG_ENTER("store_create_info");
   DBUG_PRINT("enter",("table: %s",table->real_name));
@@ -680,7 +698,7 @@ store_create_info(THD *thd, TABLE *table, String* packet)
   char tmp[MAX_FIELD_WIDTH];
   String type(tmp, sizeof(tmp));
   packet->append("CREATE TABLE ", 13);
-  packet->append(table->real_name);
+  append_identifier(thd,packet,table->real_name);
   packet->append(" (\n", 3);
 
   Field **ptr,*field;
@@ -691,7 +709,7 @@ store_create_info(THD *thd, TABLE *table, String* packet)
 
     uint flags = field->flags;
     packet->append("  ", 2);
-    packet->append(field->field_name);
+    append_identifier(thd,packet,field->field_name);
     packet->append(' ');
     // check for surprises from the previous call to Field::sql_type()
     if(type.ptr() != tmp)
@@ -746,7 +764,7 @@ store_create_info(THD *thd, TABLE *table, String* packet)
     packet->append("KEY ", 4);
 
     if(i != primary_key)
-     packet->append(key_info->name);
+     append_identifier(thd,packet,key_info->name);
 
     packet->append('(');
 
@@ -756,7 +774,7 @@ store_create_info(THD *thd, TABLE *table, String* packet)
         packet->append(',');
 
       if (key_part->field)
-        packet->append(key_part->field->field_name);
+        append_identifier(thd,packet,key_part->field->field_name);
       if (!key_part->field ||
           (key_part->length !=
            table->field[key_part->fieldnr-1]->key_length() &&

sql/sql_yacc.yy

@@ -407,6 +407,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %token	SQL_WARNINGS
 %token	SQL_AUTO_IS_NULL
 %token	SQL_SAFE_UPDATES
+%token  SQL_QUOTE_SHOW_CREATE
 
 %left   SET_VAR
 %left	OR_OR_CONCAT OR
@@ -530,7 +531,7 @@ query:
 verb_clause:
 	  alter
 	| analyze
-	| backup  
+	| backup
 	| begin
 	| change
 	| check
@@ -549,7 +550,7 @@ verb_clause:
 	| rename
         | repair
 	| replace
-	| restore  
+	| restore
 	| revoke
 	| rollback
 	| select
@@ -2096,7 +2097,7 @@ opt_low_priority:
 /* Delete rows from a table */
 
 delete:
-	DELETE_SYM 
+	DELETE_SYM
 	{ Lex->sql_command= SQLCOM_DELETE; Lex->options=0;
 	  Lex->lock_option= current_thd->update_lock_default; }
         opt_delete_options FROM table
@@ -2620,6 +2621,7 @@ set_option:
 	| SQL_AUTO_IS_NULL	{ $$= OPTION_AUTO_IS_NULL; }
 	| SQL_SAFE_UPDATES	{ $$= OPTION_SAFE_UPDATES; }
 	| SQL_BUFFER_RESULT	{ $$= OPTION_BUFFER_RESULT; }
+	| SQL_QUOTE_SHOW_CREATE { $$= OPTION_QUOTE_SHOW_CREATE; }
 
 /* Lock function */