Merge chilla.local:/home/mydev/mysql-5.0-ateam

into  chilla.local:/home/mydev/mysql-5.1-ateam

include/sql_common.h

@@ -22,6 +22,7 @@ extern const char	*not_error_sqlstate;
 extern "C" {
 #endif
 
+extern CHARSET_INFO *default_client_charset_info;
 MYSQL_FIELD *unpack_fields(MYSQL_DATA *data,MEM_ROOT *alloc,uint fields,
 			   my_bool default_value, uint server_capabilities);
 void free_rows(MYSQL_DATA *cur);

libmysqld/lib_sql.cc

@@ -37,6 +37,8 @@ extern "C"
 int check_user(THD *thd, enum enum_server_command command, 
 	       const char *passwd, uint passwd_len, const char *db,
 	       bool check_count);
+void thd_init_client_charset(THD *thd, uint cs_number);
+
 C_MODE_START
 
 #include <mysql.h>
@@ -604,11 +606,14 @@ err:
   return NULL;
 }
 
+
 #ifdef NO_EMBEDDED_ACCESS_CHECKS
 int check_embedded_connection(MYSQL *mysql)
 {
   int result;
   THD *thd= (THD*)mysql->thd;
+  thd_init_client_charset(thd, mysql->charset->number);
+  thd->update_charset();
   Security_context *sctx= thd->security_ctx;
   sctx->host_or_ip= sctx->host= (char*) my_localhost;
   strmake(sctx->priv_host, (char*) my_localhost,  MAX_HOSTNAME-1);
@@ -627,6 +632,8 @@ int check_embedded_connection(MYSQL *mysql)
   char scramble_buff[SCRAMBLE_LENGTH];
   int passwd_len;
 
+  thd_init_client_charset(thd, mysql->charset->number);
+  thd->update_charset();
   if (mysql->options.client_ip)
   {
     sctx->host= my_strdup(mysql->options.client_ip, MYF(0));

libmysqld/libmysqld.c

@@ -90,49 +90,7 @@ static void end_server(MYSQL *mysql)
 }
 
 
-static int mysql_init_charset(MYSQL *mysql)
-{
-  char charset_name_buff[16], *charset_name;
-
-  if ((charset_name=mysql->options.charset_name))
-  {
-    const char *save=charsets_dir;
-    if (mysql->options.charset_dir)
-      charsets_dir=mysql->options.charset_dir;
-    mysql->charset=get_charset_by_name(mysql->options.charset_name,
-                                       MYF(MY_WME));
-    charsets_dir=save;
-  }
-  else if (mysql->server_language)
-  {
-    charset_name=charset_name_buff;
-    sprintf(charset_name,"%d",mysql->server_language);	/* In case of errors */
-    mysql->charset=get_charset((uint8) mysql->server_language, MYF(MY_WME));
-  }
-  else
-    mysql->charset=default_charset_info;
-
-  if (!mysql->charset)
-  {
-    mysql->net.last_errno=CR_CANT_READ_CHARSET;
-    strmov(mysql->net.sqlstate, "HY0000");
-    if (mysql->options.charset_dir)
-      sprintf(mysql->net.last_error,ER(mysql->net.last_errno),
-              charset_name ? charset_name : "unknown",
-              mysql->options.charset_dir);
-    else
-    {
-      char cs_dir_name[FN_REFLEN];
-      get_charsets_dir(cs_dir_name);
-      sprintf(mysql->net.last_error,ER(mysql->net.last_errno),
-              charset_name ? charset_name : "unknown",
-              cs_dir_name);
-    }
-    return mysql->net.last_errno;
-  }
-  return 0;
-}
-
+int mysql_init_character_set(MYSQL *mysql);
 
 MYSQL * STDCALL
 mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
@@ -222,10 +180,10 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
 
   init_embedded_mysql(mysql, client_flag, db_name);
 
-  if (check_embedded_connection(mysql))
+  if (mysql_init_character_set(mysql))
     goto error;
 
-  if (mysql_init_charset(mysql))
+  if (check_embedded_connection(mysql))
     goto error;
 
   mysql->server_status= SERVER_STATUS_AUTOCOMMIT;

mysql-test/r/func_sapdb.result

@@ -81,6 +81,12 @@ makedate(1997,1)
 select makedate(1997,0);
 makedate(1997,0)
 NULL
+select makedate(9999,365);
+makedate(9999,365)
+9999-12-31
+select makedate(9999,366);
+makedate(9999,366)
+NULL
 select addtime("1997-12-31 23:59:59.999999", "1 1:1:1.000002");
 addtime("1997-12-31 23:59:59.999999", "1 1:1:1.000002")
 1998-01-02 01:01:01.000001

mysql-test/r/func_time.result

@@ -361,6 +361,12 @@ extract(SECOND FROM "1999-01-02 10:11:12")
 select extract(MONTH FROM "2001-02-00");
 extract(MONTH FROM "2001-02-00")
 2
+SELECT DATE_SUB(str_to_date('9999-12-31 00:01:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE);
+DATE_SUB(str_to_date('9999-12-31 00:01:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE)
+9999-12-31 00:00:00
+SELECT DATE_ADD(str_to_date('9999-12-30 23:59:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE);
+DATE_ADD(str_to_date('9999-12-30 23:59:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE)
+9999-12-31 00:00:00
 SELECT EXTRACT(QUARTER FROM '2004-01-15') AS quarter;
 quarter
 1

mysql-test/r/gis-rtree.result

@@ -816,3 +816,43 @@ check table t1 extended;
 Table	Op	Msg_type	Msg_text
 test.t1	check	status	OK
 drop table t1;
+CREATE TABLE t1 (
+c1 geometry NOT NULL default '',
+SPATIAL KEY i1 (c1(32))
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+INSERT INTO t1 (c1) VALUES (
+PolygonFromText('POLYGON((-18.6086111000 -66.9327777000,
+                            -18.6055555000 -66.8158332999,
+                            -18.7186111000 -66.8102777000,
+                            -18.7211111000 -66.9269443999,
+                            -18.6086111000 -66.9327777000))'));
+CHECK TABLE t1 EXTENDED;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+DROP TABLE t1;
+CREATE TABLE t1 (
+c1 geometry NOT NULL default '',
+SPATIAL KEY i1 (c1(32))
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+INSERT INTO t1 (c1) VALUES (
+PolygonFromText('POLYGON((-18.6086111000 -66.9327777000,
+                            -18.6055555000 -66.8158332999,
+                            -18.7186111000 -66.8102777000,
+                            -18.7211111000 -66.9269443999,
+                            -18.6086111000 -66.9327777000))'));
+INSERT INTO t1 (c1) VALUES (
+PolygonFromText('POLYGON((-65.7402776999 -96.6686111000,
+                            -65.7372222000 -96.5516666000,
+                            -65.8502777000 -96.5461111000,
+                            -65.8527777000 -96.6627777000,
+                            -65.7402776999 -96.6686111000))'));
+INSERT INTO t1 (c1) VALUES (
+PolygonFromText('POLYGON((-18.6086111000 -66.9327777000,
+                            -18.6055555000 -66.8158332999,
+                            -18.7186111000 -66.8102777000,
+                            -18.7211111000 -66.9269443999,
+                            -18.6086111000 -66.9327777000))'));
+CHECK TABLE t1 EXTENDED;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+DROP TABLE t1;

mysql-test/r/gis.result

@@ -694,3 +694,13 @@ alter table t1 add primary key pti(pt);
 ERROR 42000: BLOB/TEXT column 'pt' used in key specification without a key length
 alter table t1 add primary key pti(pt(20));
 drop table t1;
+create table t1 (g GEOMETRY);
+select * from t1;
+Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
+def	test	t1	t1	g	g	255	4294967295	0	Y	144	0	63
+g
+select asbinary(g) from t1;
+Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
+def					asbinary(g)	252	8192	0	Y	128	0	63
+asbinary(g)
+drop table t1;

mysql-test/r/symlink.result

@@ -74,18 +74,24 @@ t9	CREATE TABLE `t9` (
 ) ENGINE=MyISAM AUTO_INCREMENT=16725 DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQLTEST_VARDIR/tmp/' INDEX DIRECTORY='MYSQLTEST_VARDIR/run/'
 drop database mysqltest;
 create table t1 (a int not null) engine=myisam;
+Warnings:
+Warning	0	DATA DIRECTORY option ignored
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) NOT NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 alter table t1 add b int;
+Warnings:
+Warning	0	DATA DIRECTORY option ignored
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) NOT NULL,
   `b` int(11) DEFAULT NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
+Warnings:
+Warning	0	INDEX DIRECTORY option ignored
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (

mysql-test/t/func_sapdb.test

@@ -43,6 +43,8 @@ select weekofyear("1997-11-30 23:59:59.000001");
 
 select makedate(1997,1);
 select makedate(1997,0);
+select makedate(9999,365);
+select makedate(9999,366);
 
 #Time functions
 

mysql-test/t/func_time.test

@@ -143,6 +143,10 @@ select extract(SECOND FROM "1999-01-02 10:11:12");
 select extract(MONTH FROM "2001-02-00");
 
 #
+# MySQL Bugs: #12356: DATE_SUB or DATE_ADD incorrectly returns null
+#
+SELECT DATE_SUB(str_to_date('9999-12-31 00:01:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE);
+SELECT DATE_ADD(str_to_date('9999-12-30 23:59:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE);
 # test EXTRACT QUARTER (Bug #18100)
 #
 

mysql-test/t/gis-rtree.test

@@ -187,4 +187,48 @@ check table t1 extended;
 
 drop table t1;
 
+#
+# Bug#17877 - Corrupted spatial index
+#
+CREATE TABLE t1 (
+  c1 geometry NOT NULL default '',
+  SPATIAL KEY i1 (c1(32))
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+INSERT INTO t1 (c1) VALUES (
+  PolygonFromText('POLYGON((-18.6086111000 -66.9327777000,
+                            -18.6055555000 -66.8158332999,
+                            -18.7186111000 -66.8102777000,
+                            -18.7211111000 -66.9269443999,
+                            -18.6086111000 -66.9327777000))'));
+# This showed a missing key.
+CHECK TABLE t1 EXTENDED;
+DROP TABLE t1;
+#
+CREATE TABLE t1 (
+  c1 geometry NOT NULL default '',
+  SPATIAL KEY i1 (c1(32))
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+INSERT INTO t1 (c1) VALUES (
+  PolygonFromText('POLYGON((-18.6086111000 -66.9327777000,
+                            -18.6055555000 -66.8158332999,
+                            -18.7186111000 -66.8102777000,
+                            -18.7211111000 -66.9269443999,
+                            -18.6086111000 -66.9327777000))'));
+INSERT INTO t1 (c1) VALUES (
+  PolygonFromText('POLYGON((-65.7402776999 -96.6686111000,
+                            -65.7372222000 -96.5516666000,
+                            -65.8502777000 -96.5461111000,
+                            -65.8527777000 -96.6627777000,
+                            -65.7402776999 -96.6686111000))'));
+# This is the same as the first insert to get a non-unique key.
+INSERT INTO t1 (c1) VALUES (
+  PolygonFromText('POLYGON((-18.6086111000 -66.9327777000,
+                            -18.6055555000 -66.8158332999,
+                            -18.7186111000 -66.8102777000,
+                            -18.7211111000 -66.9269443999,
+                            -18.6086111000 -66.9327777000))'));
+# This showed (and still shows) OK.
+CHECK TABLE t1 EXTENDED;
+DROP TABLE t1;
+
 # End of 4.1 tests

mysql-test/t/gis.test

@@ -409,3 +409,10 @@ create table t1(pt GEOMETRY);
 alter table t1 add primary key pti(pt);
 alter table t1 add primary key pti(pt(20));
 drop table t1;
+
+--enable_metadata
+create table t1 (g GEOMETRY);
+select * from t1;
+select asbinary(g) from t1;
+--disable_metadata
+drop table t1;

sql-common/client.c

@@ -125,6 +125,8 @@ static void mysql_close_free(MYSQL *mysql);
 static int wait_for_data(my_socket fd, uint timeout);
 #endif
 
+CHARSET_INFO *default_client_charset_info = &my_charset_latin1;
+
 
 /****************************************************************************
   A modified version of connect().  my_connect() allows you to specify
@@ -1426,7 +1428,7 @@ mysql_init(MYSQL *mysql)
     bzero((char*) (mysql), sizeof(*(mysql)));
   mysql->options.connect_timeout= CONNECT_TIMEOUT;
   mysql->last_used_con= mysql->next_slave= mysql->master = mysql;
-  mysql->charset=default_charset_info;
+  mysql->charset=default_client_charset_info;
   strmov(mysql->net.sqlstate, not_error_sqlstate);
   /*
     By default, we are a replication pivot. The caller must reset it
@@ -1655,6 +1657,50 @@ static MYSQL_METHODS client_methods=
 #endif
 };
 
+C_MODE_START
+int mysql_init_character_set(MYSQL *mysql)
+{
+  NET		*net= &mysql->net;
+  /* Set character set */
+  if (!mysql->options.charset_name &&
+      !(mysql->options.charset_name= 
+       my_strdup(MYSQL_DEFAULT_CHARSET_NAME,MYF(MY_WME))))
+    return 1;
+  
+  {
+    const char *save= charsets_dir;
+    if (mysql->options.charset_dir)
+      charsets_dir=mysql->options.charset_dir;
+    mysql->charset=get_charset_by_csname(mysql->options.charset_name,
+                                         MY_CS_PRIMARY, MYF(MY_WME));
+    charsets_dir= save;
+  }
+  
+  if (!mysql->charset)
+  {
+    net->last_errno=CR_CANT_READ_CHARSET;
+    strmov(net->sqlstate, unknown_sqlstate);
+    if (mysql->options.charset_dir)
+      my_snprintf(net->last_error, sizeof(net->last_error)-1,
+                  ER(net->last_errno),
+                  mysql->options.charset_name,
+                  mysql->options.charset_dir);
+    else
+    {
+      char cs_dir_name[FN_REFLEN];
+      get_charsets_dir(cs_dir_name);
+      my_snprintf(net->last_error, sizeof(net->last_error)-1,
+                  ER(net->last_errno),
+                  mysql->options.charset_name,
+                  cs_dir_name);
+    }
+    return 1;
+  }
+  return 0;
+}
+C_MODE_END
+
+
 MYSQL *
 CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
 		       const char *passwd, const char *db,
@@ -1992,42 +2038,8 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
     goto error;
   }
 
-  /* Set character set */
-  if (!mysql->options.charset_name &&
-      !(mysql->options.charset_name= 
-       my_strdup(MYSQL_DEFAULT_CHARSET_NAME,MYF(MY_WME))))
-    goto error;
-  
-  {
-    const char *save= charsets_dir;
-    if (mysql->options.charset_dir)
-      charsets_dir=mysql->options.charset_dir;
-    mysql->charset=get_charset_by_csname(mysql->options.charset_name,
-                                         MY_CS_PRIMARY, MYF(MY_WME));
-    charsets_dir= save;
-  }
-  
-  if (!mysql->charset)
-  {
-    net->last_errno=CR_CANT_READ_CHARSET;
-    strmov(net->sqlstate, unknown_sqlstate);
-    if (mysql->options.charset_dir)
-      my_snprintf(net->last_error, sizeof(net->last_error)-1,
-                  ER(net->last_errno),
-                  mysql->options.charset_name,
-                  mysql->options.charset_dir);
-    else
-    {
-      char cs_dir_name[FN_REFLEN];
-      get_charsets_dir(cs_dir_name);
-      my_snprintf(net->last_error, sizeof(net->last_error)-1,
-                  ER(net->last_errno),
-                  mysql->options.charset_name,
-                  cs_dir_name);
-    }
+  if (mysql_init_character_set(mysql))
     goto error;
-  }
-
 
   /* Save connection information */
   if (!my_multi_malloc(MYF(0),

sql/item_geofunc.h

@@ -32,6 +32,7 @@ public:
   Item_geometry_func(Item *a,Item *b,Item *c) :Item_str_func(a,b,c) {}
   Item_geometry_func(List<Item> &list) :Item_str_func(list) {}
   void fix_length_and_dec();
+  enum_field_types field_type() const  { return MYSQL_TYPE_GEOMETRY; }
 };
 
 class Item_func_geometry_from_text: public Item_geometry_func
@@ -67,6 +68,7 @@ public:
   Item_func_as_wkb(Item *a): Item_geometry_func(a) {}
   const char *func_name() const { return "aswkb"; }
   String *val_str(String *);
+  enum_field_types field_type() const  { return MYSQL_TYPE_BLOB; }
 };
 
 class Item_func_geometry_type: public Item_str_func

sql/item_timefunc.cc

@@ -27,6 +27,7 @@
 
 /* TODO: Move month and days to language files */
 
+/* Day number for Dec 31st, 9999 */
 #define MAX_DAY_NUMBER 3652424L
 
 static const char *month_names[]=
@@ -408,7 +409,7 @@ static bool extract_date_time(DATE_TIME_FORMAT *format,
   if (yearday > 0)
   {
     uint days= calc_daynr(l_time->year,1,1) +  yearday - 1;
-    if (days <= 0 || days >= MAX_DAY_NUMBER)
+    if (days <= 0 || days > MAX_DAY_NUMBER)
       goto err;
     get_date_from_daynr(days,&l_time->year,&l_time->month,&l_time->day);
   }
@@ -454,7 +455,7 @@ static bool extract_date_time(DATE_TIME_FORMAT *format,
              (weekday - 1);
     }
 
-    if (days <= 0 || days >= MAX_DAY_NUMBER)
+    if (days <= 0 || days > MAX_DAY_NUMBER)
       goto err;
     get_date_from_daynr(days,&l_time->year,&l_time->month,&l_time->day);
   }
@@ -1962,7 +1963,6 @@ bool Item_date_add_interval::get_date(TIME *ltime, uint fuzzy_date)
 
   if (date_sub_interval)
     interval.neg = !interval.neg;
-
   if (ltime->year < YY_MAGIC_BELOW)
     return (null_value=1);
 
@@ -2450,7 +2450,7 @@ String *Item_func_makedate::val_str(String *str)
 
   days= calc_daynr(yearnr,1,1) + daynr - 1;
   /* Day number from year 0 to 9999-12-31 */
-  if (days >= 0 && days < MAX_DAY_NUMBER)
+  if (days >= 0 && days <= MAX_DAY_NUMBER)
   {
     null_value=0;
     get_date_from_daynr(days,&l_time.year,&l_time.month,&l_time.day);

sql/sql_class.cc

@@ -1015,7 +1015,7 @@ bool select_send::send_data(List<Item> &items)
   Protocol *protocol= thd->protocol;
   char buff[MAX_FIELD_WIDTH];
   String buffer(buff, sizeof(buff), &my_charset_bin);
-  DBUG_ENTER("send_data");
+  DBUG_ENTER("select_send::send_data");
 
   protocol->prepare_for_resend();
   Item *item;
@@ -1228,7 +1228,7 @@ select_export::prepare(List<Item> &list, SELECT_LEX_UNIT *u)
 bool select_export::send_data(List<Item> &items)
 {
 
-  DBUG_ENTER("send_data");
+  DBUG_ENTER("select_export::send_data");
   char buff[MAX_FIELD_WIDTH],null_buff[2],space[MAX_FIELD_WIDTH];
   bool space_inited=0;
   String tmp(buff,sizeof(buff),&my_charset_bin),*res;
@@ -1385,7 +1385,7 @@ bool select_dump::send_data(List<Item> &items)
   String tmp(buff,sizeof(buff),&my_charset_bin),*res;
   tmp.length(0);
   Item *item;
-  DBUG_ENTER("send_data");
+  DBUG_ENTER("select_dump::send_data");
 
   if (unit->offset_limit_cnt)
   {						// using limit offset,count

sql/sql_parse.cc

@@ -823,6 +823,37 @@ static void reset_mqh(LEX_USER *lu, bool get_them= 0)
 #endif /* NO_EMBEDDED_ACCESS_CHECKS */
 }
 
+void thd_init_client_charset(THD *thd, uint cs_number)
+{
+  /*
+   Use server character set and collation if
+   - opt_character_set_client_handshake is not set
+   - client has not specified a character set
+   - client character set is the same as the servers
+   - client character set doesn't exists in server
+  */
+  if (!opt_character_set_client_handshake ||
+      !(thd->variables.character_set_client= get_charset(cs_number, MYF(0))) ||
+      !my_strcasecmp(&my_charset_latin1,
+                     global_system_variables.character_set_client->name,
+                     thd->variables.character_set_client->name))
+  {
+    thd->variables.character_set_client=
+      global_system_variables.character_set_client;
+    thd->variables.collation_connection=
+      global_system_variables.collation_connection;
+    thd->variables.character_set_results=
+      global_system_variables.character_set_results;
+  }
+  else
+  {
+    thd->variables.character_set_results=
+      thd->variables.collation_connection= 
+      thd->variables.character_set_client;
+  }
+}
+
+
 /*
     Perform handshake, authorize client and update thd ACL variables.
   SYNOPSIS
@@ -958,33 +989,7 @@ static int check_connection(THD *thd)
     thd->client_capabilities|= ((ulong) uint2korr(net->read_pos+2)) << 16;
     thd->max_client_packet_length= uint4korr(net->read_pos+4);
     DBUG_PRINT("info", ("client_character_set: %d", (uint) net->read_pos[8]));
-    /*
-      Use server character set and collation if
-      - opt_character_set_client_handshake is not set
-      - client has not specified a character set
-      - client character set is the same as the servers
-      - client character set doesn't exists in server
-    */
-    if (!opt_character_set_client_handshake ||
-        !(thd->variables.character_set_client=
-	  get_charset((uint) net->read_pos[8], MYF(0))) ||
-	!my_strcasecmp(&my_charset_latin1,
-		       global_system_variables.character_set_client->name,
-		       thd->variables.character_set_client->name))
-    {
-      thd->variables.character_set_client=
-	global_system_variables.character_set_client;
-      thd->variables.collation_connection=
-	global_system_variables.collation_connection;
-      thd->variables.character_set_results=
-	global_system_variables.character_set_results;
-    }
-    else
-    {
-      thd->variables.character_set_results=
-      thd->variables.collation_connection= 
-	thd->variables.character_set_client;
-    }
+    thd_init_client_charset(thd, (uint) net->read_pos[8]);
     thd->update_charset();
     end= (char*) net->read_pos+32;
   }
@@ -3098,6 +3103,12 @@ end_with_restore_list:
 	}
       }
       /* Don't yet allow changing of symlinks with ALTER TABLE */
+      if (lex->create_info.data_file_name)
+        push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN, 0,
+                     "DATA DIRECTORY option ignored");
+      if (lex->create_info.index_file_name)
+        push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN, 0,
+                     "INDEX DIRECTORY option ignored");
       lex->create_info.data_file_name=lex->create_info.index_file_name=0;
       /* ALTER TABLE ends previous transaction */
       if (end_active_trans(thd))

storage/myisam/mi_check.c

@@ -1158,13 +1158,14 @@ int chk_data_link(MI_CHECK *param, MI_INFO *info,int extend)
 #ifdef HAVE_RTREE_KEYS
                 (keyinfo->flag & HA_SPATIAL) ?
                 rtree_find_first(info, key, info->lastkey, key_length,
-                                 SEARCH_SAME) : 
+                                 MBR_EQUAL | MBR_DATA) : 
 #endif
                 _mi_search(info,keyinfo,info->lastkey,key_length,
                            SEARCH_SAME, info->s->state.key_root[key]);
               if (search_result)
               {
-                mi_check_print_error(param,"Record at: %10s  Can't find key for index: %2d",
+                mi_check_print_error(param,"Record at: %10s  "
+                                     "Can't find key for index: %2d",
                                      llstr(start_recpos,llbuff),key+1);
                 if (error++ > MAXERR || !(param->testflag & T_VERBOSE))
                   goto err2;

storage/myisam/mi_create.c

@@ -60,6 +60,8 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
   my_off_t key_root[MI_MAX_POSSIBLE_KEY],key_del[MI_MAX_KEY_BLOCK_SIZE];
   MI_CREATE_INFO tmp_create_info;
   DBUG_ENTER("mi_create");
+  DBUG_PRINT("enter", ("keys: %u  columns: %u  uniques: %u  flags: %u",
+                      keys, columns, uniques, flags));
 
   if (!ci)
   {
@@ -482,6 +484,16 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
 			       uniques * MI_UNIQUEDEF_SIZE +
 			       (key_segs + unique_key_parts)*HA_KEYSEG_SIZE+
 			       columns*MI_COLUMNDEF_SIZE);
+  DBUG_PRINT("info", ("info_length: %u", info_length));
+  /* There are only 16 bits for the total header length. */
+  if (info_length > 65535)
+  {
+    my_printf_error(0, "MyISAM table '%s' has too many columns and/or "
+                    "indexes and/or unique constraints.",
+                    MYF(0), name + dirname_length(name));
+    my_errno= HA_WRONG_CREATE_OPTION;
+    goto err;
+  }
 
   bmove(share.state.header.file_version,(byte*) myisam_file_magic,4);
   ci->old_options=options| (ci->old_options & HA_OPTION_TEMP_COMPRESS_RECORD ?
@@ -650,6 +662,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
     errpos=3;
   }
 
+  DBUG_PRINT("info", ("write state info and base info"));
   if (mi_state_info_write(file, &share.state, 2) ||
       mi_base_info_write(file, &share.base))
     goto err;
@@ -663,6 +676,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
 #endif
 
   /* Write key and keyseg definitions */
+  DBUG_PRINT("info", ("write key and keyseg definitions"));
   for (i=0 ; i < share.base.keys - uniques; i++)
   {
     uint sp_segs=(keydefs[i].flag & HA_SPATIAL) ? 2*SPDIMS : 0;
@@ -713,6 +727,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
   }
 
   /* Save unique definition */
+  DBUG_PRINT("info", ("write unique definitions"));
   for (i=0 ; i < share.state.header.uniques ; i++)
   {
     HA_KEYSEG *keyseg_end;
@@ -743,6 +758,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
 	goto err;
     }
   }
+  DBUG_PRINT("info", ("write field definitions"));
   for (i=0 ; i < share.base.fields ; i++)
     if (mi_recinfo_write(file, &recinfo[i]))
       goto err;
@@ -757,6 +773,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
 #endif
 
 	/* Enlarge files */
+  DBUG_PRINT("info", ("enlarge to keystart: %lu", (ulong) share.base.keystart));
   if (my_chsize(file,(ulong) share.base.keystart,0,MYF(0)))
     goto err;
 

storage/myisam/mi_delete_table.c

@@ -34,13 +34,25 @@ int mi_delete_table(const char *name)
 #ifdef USE_RAID
   {
     MI_INFO *info;
-    /* we use 'open_for_repair' to be able to delete a crashed table */
-    if (!(info=mi_open(name, O_RDONLY, HA_OPEN_FOR_REPAIR)))
-      DBUG_RETURN(my_errno);
-    raid_type =      info->s->base.raid_type;
-    raid_chunks =    info->s->base.raid_chunks;
+    /*
+      When built with RAID support, we need to determine if this table
+      makes use of the raid feature. If yes, we need to remove all raid
+      chunks. This is done with my_raid_delete(). Unfortunately it is
+      necessary to open the table just to check this. We use
+      'open_for_repair' to be able to open even a crashed table. If even
+      this open fails, we assume no raid configuration for this table
+      and try to remove the normal data file only. This may however
+      leave the raid chunks behind.
+    */
+    if (!(info= mi_open(name, O_RDONLY, HA_OPEN_FOR_REPAIR)))
+      raid_type= 0;
+    else
+    {
+      raid_type=   info->s->base.raid_type;
+      raid_chunks= info->s->base.raid_chunks;
       mi_close(info);
     }
+  }
 #ifdef EXTRA_DEBUG
   check_table_is_closed(name,"delete");
 #endif

storage/myisam/mi_dynrec.c

@@ -1329,6 +1329,9 @@ int _mi_read_dynamic_record(MI_INFO *info, my_off_t filepos, byte *buf)
 	  info->rec_cache.pos_in_file <= block_info.next_filepos &&
 	  flush_io_cache(&info->rec_cache))
 	goto err;
+      /* A corrupted table can have wrong pointers. (Bug# 19835) */
+      if (block_info.next_filepos == HA_OFFSET_ERROR)
+        goto panic;
       info->rec_cache.seek_not_done=1;
       if ((b_type=_mi_get_block_info(&block_info,file,
 				     block_info.next_filepos))

storage/myisam/mi_rkey.c

@@ -68,6 +68,7 @@ int mi_rkey(MI_INFO *info, byte *buf, int inx, const byte *key, uint key_len,
 
   if (fast_mi_readinfo(info))
     goto err;
+
   if (share->concurrent_insert)
     rw_rdlock(&share->key_root_lock[inx]);
 
@@ -92,14 +93,24 @@ int mi_rkey(MI_INFO *info, byte *buf, int inx, const byte *key, uint key_len,
     if (!_mi_search(info, keyinfo, key_buff, use_key_length,
                     myisam_read_vec[search_flag], info->s->state.key_root[inx]))
     {
-      while (info->lastpos >= info->state->data_file_length)
+      /*
+        If we are searching for an exact key (including the data pointer)
+        and this was added by an concurrent insert,
+        then the result is "key not found".
+      */
+      if ((search_flag == HA_READ_KEY_EXACT) &&
+          (info->lastpos >= info->state->data_file_length))
+      {
+        my_errno= HA_ERR_KEY_NOT_FOUND;
+        info->lastpos= HA_OFFSET_ERROR;
+      }
+      else while (info->lastpos >= info->state->data_file_length)
       {
         /*
 	  Skip rows that are inserted by other threads since we got a lock
 	  Note that this can only happen if we are not searching after an
 	  exact key, because the keys are sorted according to position
         */
-
         if  (_mi_search_next(info, keyinfo, info->lastkey,
                              info->lastkey_length,
                              myisam_readnext_vec[search_flag],
@@ -108,6 +119,7 @@ int mi_rkey(MI_INFO *info, byte *buf, int inx, const byte *key, uint key_len,
       }
     }
   }
+
   if (share->concurrent_insert)
     rw_unlock(&share->key_root_lock[inx]);
 

storage/myisam/rt_index.c

@@ -183,9 +183,11 @@ int rtree_find_first(MI_INFO *info, uint keynr, uchar *key, uint key_length,
     return -1;
   }
 
-  /* Save searched key */
-  memcpy(info->first_mbr_key, key, keyinfo->keylength -
-	 info->s->base.rec_reflength);
+  /*
+    Save searched key, include data pointer.
+    The data pointer is required if the search_flag contains MBR_DATA.
+  */
+  memcpy(info->first_mbr_key, key, keyinfo->keylength);
   info->last_rkey_length = key_length;
 
   info->rtree_recursion_depth = -1;

storage/myisam/rt_mbr.c

@@ -52,10 +52,14 @@
     if (EQUAL_CMP(amin, amax, bmin, bmax)) \
       return 1; \
   } \
-  else /* if (nextflag & MBR_DISJOINT) */ \
+  else if (nextflag & MBR_DISJOINT) \
   { \
     if (DISJOINT_CMP(amin, amax, bmin, bmax)) \
       return 1; \
+  }\
+  else /* if unknown comparison operator */ \
+  { \
+    DBUG_ASSERT(0); \
   }
 
 #define RT_CMP_KORR(type, korr_func, len, nextflag) \