merge with 3.23.49

BitKeeper/etc/logging_ok:
  auto-union
acconfig.h:
  Auto merged
Docs/manual.texi:
  Auto merged
client/client_priv.h:
  Auto merged
include/mysql.h:
  Auto merged
innobase/dict/dict0dict.c:
  Auto merged
innobase/row/row0mysql.c:
  Auto merged
mysql-test/t/comments.test:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_load.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/unireg.cc:
  Auto merged
sql/unireg.h:
  Auto merged

BitKeeper/etc/logging_ok

@@ -8,6 +8,7 @@ arjen@co3064164-a.bitbike.com
 bell@sanja.is.com.ua
 davida@isil.mysql.com
 heikki@donna.mysql.fi
+heikki@hundin.mysql.fi
 jani@hynda.mysql.fi
 jani@janikt.pp.saunalahti.fi
 jani@rhols221.adsl.netsonic.fi
@@ -15,6 +16,7 @@ jcole@abel.spaceapes.com
 jcole@main.burghcom.com
 jcole@sarvik.tfr.cafe.ee
 jcole@tetra.spaceapes.com
+jorge@linux.jorge.mysql.com
 kaj@work.mysql.com
 miguel@light.local
 monty@bitch.mysql.fi

Docs/manual.texi

@@ -48779,8 +48779,17 @@ not yet 100% confident in this code.
 @appendixsubsec Changes in release 3.23.49
 @itemize @bullet
 @item
+Don't give warning for statement that is only a comment;  This is needed for
+@code{mysqldump --disable-keys} to work.
+@item
 Fixed unlikely caching bug when doing a join without keys. In this case
 the last used field for a table always returned @code{NULL}.
+@item
+Added options to make @code{LOAD DATA LOCAL INFILE} more secure.
+@item
+MySQL binary release 3.23.48 for Linux contained a new glibc library, which
+has serious problems under high load and RedHat 7.2.  The 3.23.49 binary
+release doesn't have this problem.
 @end itemize
 
 @node News-3.23.48, News-3.23.47, News-3.23.49, News-3.23.x

acconfig.h

@@ -21,6 +21,9 @@
 /* Version of .frm files */
 #undef DOT_FRM_VERSION
 
+/* If LOAD DATA LOCAL INFILE should be enabled by default */
+#undef ENABLED_LOCAL_INFILE
+
 /* READLINE: */
 #undef FIONREAD_IN_SYS_IOCTL
 

client/client_priv.h

@@ -31,4 +31,4 @@ enum options { OPT_CHARSETS_DIR=256, OPT_DEFAULT_CHARSET,
 	       OPT_LOW_PRIORITY, OPT_AUTO_REPAIR, OPT_COMPRESS,
 	       OPT_DROP, OPT_LOCKS, OPT_KEYWORDS, OPT_DELAYED, OPT_OPTIMIZE,
 	       OPT_FTB, OPT_LTB, OPT_ENC, OPT_O_ENC, OPT_ESC, OPT_TABLES,
-	       OPT_MASTER_DATA, OPT_AUTOCOMMIT};
+	       OPT_MASTER_DATA, OPT_AUTOCOMMIT, OPT_LOCAL_INFILE};

client/mysql.cc

@@ -38,7 +38,7 @@
 #include <signal.h>
 #include <violite.h>
 
-const char *VER="11.19";
+const char *VER="11.20";
 
 /* Don't try to make a nice table if the data is too big */
 #define MAX_COLUMN_LENGTH	     1024
@@ -116,10 +116,10 @@ static MYSQL mysql;			/* The connection */
 static bool info_flag=0,ignore_errors=0,wait_flag=0,quick=0,
 	    connected=0,opt_raw_data=0,unbuffered=0,output_tables=0,
 	    no_rehash=0,skip_updates=0,safe_updates=0,one_database=0,
-	    opt_compress=0,
+	    opt_compress=0, using_opt_local_infile=0,
 	    vertical=0,skip_line_numbers=0,skip_column_names=0,opt_html=0,
             opt_xml=0,opt_nopager=1, opt_outfile=0, no_named_cmds=1;
-static uint verbose=0,opt_silent=0,opt_mysql_port=0;
+static uint verbose=0,opt_silent=0,opt_mysql_port=0, opt_local_infile=0;
 static my_string opt_mysql_unix_port=0;
 static int connect_flag=CLIENT_INTERACTIVE;
 static char *current_host,*current_db,*current_user=0,*opt_password=0,
@@ -436,6 +436,7 @@ static struct option long_options[] =
   {"xml",           no_argument,           0, 'X'},
   {"host",	    required_argument,	   0, 'h'},
   {"ignore-spaces", no_argument,	   0, 'i'},
+  {"local-infile",  optional_argument,	   0, OPT_LOCAL_INFILE},
   {"no-auto-rehash",no_argument,	   0, 'A'},
   {"no-named-commands", no_argument,       0, 'g'},
   {"no-tee",        no_argument,           0, OPT_NOTEE},
@@ -738,6 +739,10 @@ static int get_options(int argc, char **argv)
     case 'C':
       opt_compress=1;
       break;
+    case OPT_LOCAL_INFILE:
+      using_opt_local_infile=1;
+      opt_local_infile= test(!optarg || atoi(optarg)>0);
+      break;
     case 'L':
       skip_line_numbers=1;
       break;
@@ -2235,6 +2240,8 @@ sql_real_connect(char *host,char *database,char *user,char *password,
   }
   if (opt_compress)
     mysql_options(&mysql,MYSQL_OPT_COMPRESS,NullS);
+  if (using_opt_local_infile)
+    mysql_options(&mysql,MYSQL_OPT_LOCAL_INFILE, (char*) &opt_local_infile);
 #ifdef HAVE_OPENSSL
   if (opt_use_ssl)
     mysql_ssl_set(&mysql, opt_ssl_key, opt_ssl_cert, opt_ssl_ca,

configure.in

@@ -518,7 +518,7 @@ AC_ARG_ENABLE(thread-safe-client,
     [ THREAD_SAFE_CLIENT=no ]
     )
 
-# Make thread safe client
+# compile with strings functions in assembler
 AC_ARG_ENABLE(assembler,
     [  --enable-assembler      Use assembler versions of some string 
                           functions if available.],
@@ -583,6 +583,14 @@ AC_ARG_WITH(mysqld-user,
     )
 AC_SUBST(MYSQLD_USER)
 
+# compile with strings functions in assembler
+AC_ARG_ENABLE(local-infile,
+    [  --enable-local-infile
+                          If LOAD DATA LOCAL INFILE is enabled by default.],
+    [ ENABLED_LOCAL_INFILE=$enablewal ],
+    [ ENABLED_LOCAL_INFILE=no ]
+    )
+
 # Use Paul Eggerts macros from GNU tar to check for large file support.
 MYSQL_SYS_LARGEFILE
 

include/mysql.h

@@ -157,7 +157,8 @@ struct st_mysql_options {
 enum mysql_option { MYSQL_OPT_CONNECT_TIMEOUT, MYSQL_OPT_COMPRESS,
 		    MYSQL_OPT_NAMED_PIPE, MYSQL_INIT_COMMAND,
 		    MYSQL_READ_DEFAULT_FILE, MYSQL_READ_DEFAULT_GROUP,
-		    MYSQL_SET_CHARSET_DIR, MYSQL_SET_CHARSET_NAME};
+		    MYSQL_SET_CHARSET_DIR, MYSQL_SET_CHARSET_NAME,
+		    MYSQL_OPT_LOCAL_INFILE};
 
 enum mysql_status { MYSQL_STATUS_READY,MYSQL_STATUS_GET_RESULT,
 		    MYSQL_STATUS_USE_RESULT};

innobase/dict/dict0dict.c

@@ -195,21 +195,6 @@ dict_mutex_exit_for_mysql(void)
 	mutex_exit(&(dict_sys->mutex));
 }
 	
-/************************************************************************
-Increments the count of open MySQL handles to a table. */
-
-void
-dict_table_increment_handle_count(
-/*==============================*/
-	dict_table_t*	table)	/* in: table */
-{
-	mutex_enter(&(dict_sys->mutex));
-
-	table->n_mysql_handles_opened++;
-	
-	mutex_exit(&(dict_sys->mutex));
-}
-
 /************************************************************************
 Decrements the count of open MySQL handles to a table. */
 
@@ -495,6 +480,41 @@ dict_table_get(
 	return(table);
 }
 
+/**************************************************************************
+Returns a table object and increments MySQL open handle count on the table.
+*/
+
+dict_table_t*
+dict_table_get_and_increment_handle_count(
+/*======================================*/
+				/* out: table, NULL if does not exist */
+	char*	table_name,	/* in: table name */
+	trx_t*	trx)		/* in: transaction handle or NULL */
+{
+	dict_table_t*	table;
+
+	UT_NOT_USED(trx);
+
+	mutex_enter(&(dict_sys->mutex));
+	
+	table = dict_table_get_low(table_name);
+
+	if (table != NULL) {
+
+	        table->n_mysql_handles_opened++;
+	}
+
+	mutex_exit(&(dict_sys->mutex));
+
+	if (table != NULL) {
+	        if (!table->stat_initialized) {
+			dict_update_statistics(table);
+		}
+	}
+	
+	return(table);
+}
+
 /**************************************************************************
 Adds a table object to the dictionary cache. */
 

innobase/include/dict0dict.h

@@ -26,13 +26,6 @@ Created 1/8/1996 Heikki Tuuri
 #include "ut0byte.h"
 #include "trx0types.h"
 
-/************************************************************************
-Increments the count of open MySQL handles to a table. */
-
-void
-dict_table_increment_handle_count(
-/*==============================*/
-	dict_table_t*	table);	/* in: table */
 /************************************************************************
 Decrements the count of open MySQL handles to a table. */
 
@@ -195,6 +188,16 @@ dict_table_get(
 	char*	table_name,	/* in: table name */
 	trx_t*	trx);		/* in: transaction handle */
 /**************************************************************************
+Returns a table object and increments MySQL open handle count on the table.
+*/
+
+dict_table_t*
+dict_table_get_and_increment_handle_count(
+/*======================================*/
+				/* out: table, NULL if does not exist */
+	char*	table_name,	/* in: table name */
+	trx_t*	trx);		/* in: transaction handle or NULL */
+/**************************************************************************
 Returns a table object, based on table id, and memoryfixes it. */
 
 dict_table_t*

innobase/row/row0mysql.c

@@ -273,8 +273,6 @@ row_create_prebuilt(
 	ulint		ref_len;
 	ulint		i;
 	
-	dict_table_increment_handle_count(table);
-
 	heap = mem_heap_create(128);
 
 	prebuilt = mem_heap_alloc(heap, sizeof(row_prebuilt_t));
@@ -1468,6 +1466,13 @@ loop:
 	table = dict_table_get_low(drop->table_name);
 	mutex_exit(&(dict_sys->mutex));
 
+	if (table == NULL) {
+	        /* If for some reason the table has already been dropped
+		through some other mechanism, do not try to drop it */
+
+	        goto already_dropped;
+	}
+
 	if (table->n_mysql_handles_opened > 0) {
 
 		return(n_tables + n_tables_dropped);
@@ -1477,10 +1482,16 @@ loop:
 							
 	row_drop_table_for_mysql_in_background(drop->table_name);
 
+already_dropped:
 	mutex_enter(&kernel_mutex);
 
 	UT_LIST_REMOVE(row_mysql_drop_list, row_mysql_drop_list, drop);
 
+        ut_print_timestamp(stderr);
+        fprintf(stderr,
+		"  InnoDB: Dropped table %s in background drop queue.\n",
+		drop->table_name);
+
 	mem_free(drop->table_name);
 
 	mem_free(drop);
@@ -1746,6 +1757,13 @@ row_drop_table_for_mysql(
 
 	if (table->n_mysql_handles_opened > 0) {
 		
+	        ut_print_timestamp(stderr);
+	        fprintf(stderr,
+		  "  InnoDB: Warning: MySQL is trying to drop table %s\n"
+		  "InnoDB: though there are still open handles to it.\n"
+		  "InnoDB: Adding the table to the background drop queue.\n",
+		  table->name);
+
 		row_add_table_to_background_drop_list(table);
 
 		err = DB_SUCCESS;
@@ -1807,6 +1825,7 @@ row_drop_database_for_mysql(
 	char*	name,	/* in: database name which ends to '/' */
 	trx_t*	trx)	/* in: transaction handle */
 {
+        dict_table_t* table;
 	char*	table_name;
 	int	err	= DB_SUCCESS;
 	
@@ -1817,12 +1836,35 @@ row_drop_database_for_mysql(
 	trx->op_info = (char *) "dropping database";
 	
 	trx_start_if_not_started(trx);
-
+loop:
 	mutex_enter(&(dict_sys->mutex));
 
 	while ((table_name = dict_get_first_table_name_in_db(name))) {
 		ut_a(memcmp(table_name, name, strlen(name)) == 0);
 
+		table = dict_table_get_low(table_name);
+
+		ut_a(table);
+
+		/* Wait until MySQL does not have any queries running on
+		the table */
+
+		if (table->n_mysql_handles_opened > 0) {
+		        mutex_exit(&(dict_sys->mutex));
+
+			ut_print_timestamp(stderr);
+			fprintf(stderr,
+		"  InnoDB: Warning: MySQL is trying to drop database %s\n"
+	    	"InnoDB: though there are still open handles to table %s.\n",
+				name, table_name);
+
+		        os_thread_sleep(1000000);
+
+		        mem_free(table_name);
+
+		        goto loop;
+		}
+
 		err = row_drop_table_for_mysql(table_name, trx, TRUE);
 
 		mem_free(table_name);

libmysql/libmysql.c

@@ -60,7 +60,7 @@ static my_bool	mysql_client_init=0;
 uint		mysql_port=0;
 my_string	mysql_unix_port=0;
 
-#define CLIENT_CAPABILITIES	(CLIENT_LONG_PASSWORD | CLIENT_LONG_FLAG | CLIENT_LOCAL_FILES | CLIENT_TRANSACTIONS)
+#define CLIENT_CAPABILITIES	(CLIENT_LONG_PASSWORD | CLIENT_LONG_FLAG | CLIENT_TRANSACTIONS)
 
 #ifdef __WIN__
 #define CONNECT_TIMEOUT 20
@@ -694,12 +694,14 @@ mysql_free_result(MYSQL_RES *result)
 ****************************************************************************/
 
 static const char *default_options[]=
-{"port","socket","compress","password","pipe", "timeout", "user",
- "init-command", "host", "database", "debug", "return-found-rows",
- "ssl-key" ,"ssl-cert" ,"ssl-ca" ,"ssl-capath", "ssl-cipher"
- "character-set-dir", "default-character-set", "interactive-timeout",
- "connect_timeout", "replication-probe", "enable-reads-from-master",
- "repl-parse-query",
+{
+  "port","socket","compress","password","pipe", "timeout", "user",
+  "init-command", "host", "database", "debug", "return-found-rows",
+  "ssl-key" ,"ssl-cert" ,"ssl-ca" ,"ssl-capath",
+  "character-set-dir", "default-character-set", "interactive-timeout",
+  "connect-timeout", "local-infile", "disable-local-infile",
+  "replication-probe", "enable-reads-from-master", "repl-parse-query",
+  "ssl-chiper",
  NullS
 };
 
@@ -734,6 +736,9 @@ static void mysql_read_default_options(struct st_mysql_options *options,
 	  opt_arg=end+1;
 	  *end=0;				/* Remove '=' */
 	}
+	/* Change all '_' in variable name to '-' */
+	for (end= *option ; (end= strcend(end,'_')) ; )
+	  *end= '-';
 	switch (find_type(*option+2,&option_types,2)) {
 	case 1:				/* port */
 	  if (opt_arg)
@@ -831,15 +836,24 @@ static void mysql_read_default_options(struct st_mysql_options *options,
           options->charset_name = my_strdup(opt_arg, MYF(MY_WME));
 	  break;
 	case 19:				/* Interactive-timeout */
-	  options->client_flag|=CLIENT_INTERACTIVE;
+	  options->client_flag|= CLIENT_INTERACTIVE;
+	  break;
+	case 21:
+	  if (!opt_arg || atoi(opt_arg) != 0)
+	    options->client_flag|= CLIENT_LOCAL_FILES;
+	  else
+	    options->client_flag&= ~CLIENT_LOCAL_FILES;
 	  break;
-	case 21:  /* replication probe */
+	case 22:
+	  options->client_flag&= CLIENT_LOCAL_FILES;
+          break;
+	case 23:  /* replication probe */
 	  options->rpl_probe = 1;
 	  break;
-	case 22: /* enable-reads-from-master */
+	case 24: /* enable-reads-from-master */
 	  options->rpl_parse = 1;
 	  break;
-	case 23: /* repl-parse-query */
+	case 25: /* repl-parse-query */
 	  options->no_master_reads = 0;
 	  break;
 	default:
@@ -1321,6 +1335,14 @@ mysql_init(MYSQL *mysql)
   if (!((mysql)->client_flag & CLIENT_IGNORE_SIGPIPE))
     (void) signal(SIGPIPE,pipe_sig_handler);
 #endif
+
+/*
+  Only enable LOAD DATA INFILE by default if configured with
+  --with-enabled-local-inflile
+*/
+#ifdef ENABLED_LOCAL_INFILE
+  mysql->options.client_flag|= CLIENT_LOCAL_FILES;
+#endif
   return mysql;
 }
 
@@ -1770,7 +1792,6 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
   if (mysql->options.use_ssl)
     client_flag|=CLIENT_SSL;
 #endif /* HAVE_OPENSSL */
-
   if (db)
     client_flag|=CLIENT_CONNECT_WITH_DB;
 #ifdef HAVE_COMPRESS
@@ -2714,11 +2735,17 @@ mysql_options(MYSQL *mysql,enum mysql_option option, const char *arg)
     mysql->options.connect_timeout= *(uint*) arg;
     break;
   case MYSQL_OPT_COMPRESS:
-    mysql->options.compress=1;			/* Remember for connect */
+    mysql->options.compress= 1;			/* Remember for connect */
     break;
   case MYSQL_OPT_NAMED_PIPE:
     mysql->options.named_pipe=1;		/* Force named pipe */
     break;
+  case MYSQL_OPT_LOCAL_INFILE:			/* Allow LOAD DATA LOCAL ?*/
+    if (!arg || test(*(uint*) arg))
+      mysql->options.client_flag|= CLIENT_LOCAL_FILES;
+    else
+      mysql->options.client_flag&= ~CLIENT_LOCAL_FILES;
+    break;
   case MYSQL_INIT_COMMAND:
     my_free(mysql->options.init_command,MYF(MY_ALLOW_ZERO_PTR));
     mysql->options.init_command=my_strdup(arg,MYF(MY_WME));

mysql-test/t/comments.test

@@ -5,7 +5,7 @@
 select 1+2/*hello*/+3;
 select 1 /* long
 multi line comment */;
-!$1065 /* empty query */;
+!$1065 ;
 select 1 /*!32301 +1 */;
 select 1 /*!52301 +1 */;
 select 1--1;
@@ -15,3 +15,4 @@ select 1 --2
 +1;
 select 1 # The rest of the row will be ignored
 ;
+/* line with only comment */;

sql/ha_innodb.cc

@@ -987,7 +987,10 @@ ha_innobase::open(
 
 	/* Get pointer to a table object in InnoDB dictionary cache */
 
- 	if (NULL == (ib_table = dict_table_get(norm_name, NULL))) {
+	ib_table = dict_table_get_and_increment_handle_count(
+				      		     norm_name, NULL);
+
+ 	if (NULL == ib_table) {
 
 	  sql_print_error("InnoDB error:\n\
 Cannot find table %s from the internal data dictionary\n\
@@ -2831,7 +2834,9 @@ innobase_drop_database(
 	memcpy(namebuf, ptr, len);
 	namebuf[len] = '/';
 	namebuf[len + 1] = '\0';
-
+#ifdef __WIN__
+	casedn_str(namebuf);
+#endif
 	trx = trx_allocate_for_mysql();
 
   	error = row_drop_database_for_mysql(namebuf, trx);

sql/mysql_priv.h

@@ -583,6 +583,7 @@ extern pthread_cond_t COND_refresh,COND_thread_count;
 extern pthread_attr_t connection_attrib;
 extern bool opt_endinfo, using_udf_functions, locked_in_memory,
             opt_using_transactions, use_temp_pool, mysql_embedded;
+extern bool opt_local_infile;
 extern char f_fyllchar;
 extern ulong ha_read_count, ha_write_count, ha_delete_count, ha_update_count,
 	     ha_read_key_count, ha_read_next_count, ha_read_prev_count,

sql/mysqld.cc

@@ -297,6 +297,7 @@ ulong bytes_sent = 0L, bytes_received = 0L;
 
 bool opt_endinfo,using_udf_functions,low_priority_updates, locked_in_memory;
 bool opt_using_transactions, using_update_log, opt_warnings=0;
+bool opt_local_infile=1;
 bool volatile abort_loop,select_thread_in_use,grant_option;
 bool volatile ready_to_exit,shutdown_in_progress;
 ulong refresh_version=1L,flush_version=1L;	/* Increments on each reload */
@@ -708,8 +709,9 @@ static pthread_handler_decl(kill_server_thread,arg __attribute__((unused)))
 
 static sig_handler print_signal_warning(int sig)
 {
-  sql_print_error("Warning: Got signal %d from thread %d",
-		  sig,my_thread_id());
+  if (opt_warnings)
+    sql_print_error("Warning: Got signal %d from thread %d",
+		    sig,my_thread_id());
 #ifdef DONT_REMEMBER_SIGNAL
   sigset(sig,print_signal_warning);		/* int. thread system calls */
 #endif
@@ -2686,7 +2688,7 @@ enum options {
                OPT_SLAVE_LOAD_TMPDIR, OPT_NO_MIX_TYPE,
 	       OPT_RPL_RECOVERY_RANK,OPT_INIT_RPL_ROLE,
 	       OPT_RELAY_LOG, OPT_RELAY_LOG_INDEX, OPT_RELAY_LOG_INFO_FILE,
-               OPT_SLAVE_SKIP_ERRORS, OPT_DES_KEY_FILE
+               OPT_SLAVE_SKIP_ERRORS, OPT_DES_KEY_FILE, OPT_LOCAL_INFILE
 };
 
 static struct option long_options[] = {
@@ -2748,6 +2750,7 @@ static struct option long_options[] = {
   {"init-file",             required_argument, 0, (int) OPT_INIT_FILE},
   {"log",                   optional_argument, 0, 'l'},
   {"language",              required_argument, 0, 'L'},
+  {"local-infile",	    optional_argument, 0, (int) OPT_LOCAL_INFILE},
   {"log-bin",               optional_argument, 0, (int) OPT_BIN_LOG},
   {"log-bin-index",         required_argument, 0, (int) OPT_BIN_LOG_INDEX},
   {"log-isam",              optional_argument, 0, (int) OPT_ISAM_LOG},
@@ -3615,6 +3618,9 @@ static void get_options(int argc,char **argv)
     case 'P':
       mysql_port= (unsigned int) atoi(optarg);
       break;
+    case OPT_LOCAL_INFILE:
+      opt_local_infile= test(!optarg || atoi(optarg) != 0);
+      break;
     case OPT_SLAVE_SKIP_ERRORS:
       init_slave_skip_errors(optarg);
       break;

sql/sql_lex.cc

@@ -768,6 +768,7 @@ int yylex(void *arg)
       return(TEXT_STRING);
 
     case STATE_COMMENT:			//  Comment
+      lex->options|= OPTION_FOUND_COMMENT;
       while ((c = yyGet()) != '\n' && c) ;
       yyUnget();			// Safety against eof
       state = STATE_START;		// Try again
@@ -779,6 +780,7 @@ int yylex(void *arg)
 	break;
       }
       yySkip();				// Skip '*'
+      lex->options|= OPTION_FOUND_COMMENT;
       if (yyPeek() == '!')		// MySQL command in comment
       {
 	ulong version=MYSQL_VERSION_ID;

sql/sql_lex.h

@@ -57,6 +57,7 @@ enum enum_sql_command {
   SQLCOM_HA_OPEN, SQLCOM_HA_CLOSE, SQLCOM_HA_READ,
   SQLCOM_SHOW_SLAVE_HOSTS, SQLCOM_DELETE_MULTI, SQLCOM_MULTI_UPDATE,
   SQLCOM_SHOW_BINLOG_EVENTS, SQLCOM_SHOW_NEW_MASTER, SQLCOM_DO,
+  SQLCOM_EMPTY_QUERY,
   SQLCOM_END
 };
 

sql/sql_load.cc

@@ -145,7 +145,7 @@ int mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
   if (read_file_from_client && handle_duplicates == DUP_ERROR)
     handle_duplicates=DUP_IGNORE;
 
-  if (read_file_from_client && (thd->client_capabilities & CLIENT_LOCAL_FILES))
+  if (read_file_from_client)
   {
     (void)net_request_file(&thd->net,ex->file_name);
     file = -1;

sql/sql_parse.cc

@@ -1312,6 +1312,10 @@ mysql_execute_command(void)
     res=mysql_do(thd, *lex->insert_list);
     break;
 
+  case SQLCOM_EMPTY_QUERY:
+    send_ok(&thd->net);
+    break;
+
   case SQLCOM_PURGE:
   {
     if (check_process_priv(thd))
@@ -2094,13 +2098,20 @@ mysql_execute_command(void)
   {
     uint privilege= (lex->duplicates == DUP_REPLACE ?
 		     INSERT_ACL | UPDATE_ACL | DELETE_ACL : INSERT_ACL);
-    if (!(lex->local_file && (thd->client_capabilities & CLIENT_LOCAL_FILES)))
+
+    if (!lex->local_file)
     {
       if (check_access(thd,privilege | FILE_ACL,tables->db))
 	goto error;
     }
     else
     {
+      if (!(thd->client_capabilities & CLIENT_LOCAL_FILES) ||
+	  ! opt_local_infile)
+      {
+	send_error(&thd->net,ER_NOT_ALLOWED_COMMAND);
+	goto error;
+      }
       if (check_access(thd,privilege,tables->db,&tables->grant.privilege) ||
 	  grant_option && check_grant(thd,privilege,tables))
 	goto error;

sql/sql_yacc.yy

@@ -596,9 +596,17 @@ END_OF_INPUT
 query:
 	END_OF_INPUT
 	{
-	   if (!current_thd->bootstrap)
+	   THD *thd=current_thd;
+	   if (!thd->bootstrap &&
+	      (!(thd->lex.options & OPTION_FOUND_COMMENT)))
+	   {
 	     send_error(&current_thd->net,ER_EMPTY_QUERY);
-	   YYABORT;
+	     YYABORT;
+ 	   }
+	   else
+	   {
+	     thd->lex.sql_command = SQLCOM_EMPTY_QUERY;
+	   }
 	}
 	| verb_clause END_OF_INPUT {}
 

sql/unireg.cc

@@ -486,11 +486,11 @@ static bool pack_fields(File file,List<create_field> &create_fields)
       if (field->interval_id > int_count)
       {
 	int_count=field->interval_id;
-	tmp.append('\377');
+	tmp.append(NAMES_SEP_CHAR);
 	for (const char **pos=field->interval->type_names ; *pos ; pos++)
 	{
 	  tmp.append(*pos);
-	  tmp.append('\377');
+	  tmp.append(NAMES_SEP_CHAR);
 	}
 	tmp.append('\0');			// End of intervall
       }

sql/unireg.h

@@ -70,11 +70,6 @@
 #define FERR		-1			/* Error from my_functions */
 #define CREATE_MODE	0			/* Default mode on new files */
 #define NAMES_SEP_CHAR	'\377'			/* Char to sep. names */
-#ifdef MSDOS
-#define EXTRA_FIELD_CHAR (char) '\234'		/* Interchangebly with '#' */
-#else
-#define EXTRA_FIELD_CHAR '#'			/* Interchangebly with '#' */
-#endif
 
 #define READ_RECORD_BUFFER	(uint) (IO_SIZE*8) /* Pointer_buffer_size */
 #define DISK_BUFFER_SIZE	(uint) (IO_SIZE*16) /* Size of diskbuffer */