Merge sanja.is.com.ua:/home/bell/mysql/mysql-4.1

into sanja.is.com.ua:/home/bell/mysql/work-row-4.1


mysql-test/r/subselect.result:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged

bdb/dist/RELEASE

@@ -16,7 +16,7 @@ DB_VERSION_STRING="Sleepycat Software: Berkeley DB $DB_VERSION: ($DB_RELEASE_DAT
 # bitkeeper doesn't like somebody to mess with permissions!
 chmod()
 {
-  #echo "chmod $1 $2"
+  echo "chmod $1 $2" >/dev/null
 }
 
 # useful trick to find auto-generated files

bdb/dist/s_all

 #!/bin/sh -
 #	$Id: s_all,v 1.10 2001/08/04 14:01:44 bostic Exp $
 
-sh s_perm		# permissions.
+make_dir()
+{
+  if test ! -d $1; then
+    echo  "mkdir $1"
+    mkdir $1
+    status=$?
+    if test $status -ne 0 && test ! -d $1; then
+      echo "error: $status"
+    fi
+  fi
+}
+
+make_dir ../test_server
+make_dir ../dbinc_auto
+
+#sh s_perm		# permissions.
 sh s_symlink		# symbolic links.
 sh s_readme		# db/README file.
 

heap/hp_create.c

@@ -55,6 +55,22 @@ int heap_create(const char *name, uint keys, HP_KEYDEF *keydef,
 	  if (keyinfo->algorithm == HA_KEY_ALG_BTREE)
 	    keyinfo->rb_tree.size_of_element++;
 	}
+	switch (keyinfo->seg[j].type) {
+	case HA_KEYTYPE_SHORT_INT:
+	case HA_KEYTYPE_LONG_INT:
+	case HA_KEYTYPE_FLOAT:
+	case HA_KEYTYPE_DOUBLE:
+	case HA_KEYTYPE_USHORT_INT:
+	case HA_KEYTYPE_ULONG_INT:
+	case HA_KEYTYPE_LONGLONG:
+	case HA_KEYTYPE_ULONGLONG:
+	case HA_KEYTYPE_INT24:
+	case HA_KEYTYPE_UINT24:
+	case HA_KEYTYPE_INT8:
+	  keyinfo->seg[j].flag|= HA_SWAP_KEY;
+	default:
+	  break;
+	}
       }
       keyinfo->length= length;
       length+= keyinfo->rb_tree.size_of_element + 

heap/hp_hash.c

@@ -443,6 +443,43 @@ uint hp_rb_make_key(HP_KEYDEF *keydef, byte *key,
       if (!(*key++= 1 - test(rec[seg->null_pos] & seg->null_bit)))
         continue;
     }
+    if (seg->flag & HA_SWAP_KEY)
+    {
+      uint length= seg->length;
+      byte *pos= (byte*) rec + seg->start;
+      
+#ifdef HAVE_ISNAN
+      if (seg->type == HA_KEYTYPE_FLOAT)
+      {
+	float nr;
+	float4get(nr, pos);
+	if (isnan(nr))
+	{
+	  /* Replace NAN with zero */
+ 	  bzero(key, length);
+	  key+= length;
+	  continue;
+	}
+      }
+      else if (seg->type == HA_KEYTYPE_DOUBLE)
+      {
+	double nr;
+	float8get(nr, pos);
+	if (isnan(nr))
+	{
+ 	  bzero(key, length);
+	  key+= length;
+	  continue;
+	}
+      }
+#endif
+      pos+= length;
+      while (length--)
+      {
+	*key++= *--pos;
+      }
+      continue;
+    }
     memcpy(key, rec + seg->start, (size_t) seg->length);
     key+= seg->length;
   }
@@ -467,6 +504,18 @@ uint hp_rb_pack_key(HP_KEYDEF *keydef, uchar *key, const uchar *old, uint k_len)
         continue;
       }
     }
+    if (seg->flag & HA_SWAP_KEY)
+    {
+      uint length= seg->length;
+      byte *pos= (byte*) old + length;
+      
+      k_len-= length;
+      while (length--)
+      {
+	*key++= *--pos;
+      }
+      continue;
+    }
     memcpy((byte*) key, old, seg->length);
     key+= seg->length;
     k_len-= seg->length;

include/Makefile.am

@@ -20,7 +20,7 @@ pkginclude_HEADERS =	dbug.h m_string.h my_sys.h my_list.h \
 			mysql.h mysql_com.h mysqld_error.h mysql_embed.h \
 		  	my_semaphore.h my_pthread.h my_no_pthread.h raid.h \
 			errmsg.h my_global.h my_net.h my_alloc.h \
-			my_getopt.h sslopt-longopts.h \
+			my_getopt.h sslopt-longopts.h typelib.h \
 			sslopt-vars.h sslopt-case.h $(BUILT_SOURCES)
 noinst_HEADERS =	config-win.h config-os2.h \
 			nisam.h heap.h merge.h my_bitmap.h\

mysql-test/r/create.result

@@ -158,3 +158,6 @@ select * from t1;
 if('2002'='2002','Y','N')
 Y
 drop table if exists t1;
+create table t1 (a int, key(a));
+create table t2 (b int, foreign key(b) references t1(a), key(b));
+drop table if exists t1,t2;

mysql-test/r/derived.result

@@ -40,3 +40,28 @@ a
 select 1 from (select 1);
 1
 1
+drop table if exists t1;
+create table t1(a int not null, t char(8), index(a));
+SELECT * FROM (SELECT * FROM t1) ORDER BY a  ASC LIMIT 0,20;
+a	t
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+10	10
+11	11
+12	12
+13	13
+14	14
+15	15
+16	16
+17	17
+18	18
+19	19
+20	20
+drop table if exists  t1;

mysql-test/r/select_found.result

@@ -168,4 +168,19 @@ test2	2	2
 SELECT FOUND_ROWS();
 FOUND_ROWS()
 2
+SELECT SQL_CALC_FOUND_ROWS 1 FROM (SELECT 1) LIMIT 0;
+1
+SELECT FOUND_ROWS();
+FOUND_ROWS()
+1
+SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE numeropost > 1  LIMIT 0;
+titre	numeropost	maxnumrep
+SELECT FOUND_ROWS();
+FOUND_ROWS()
+2
+SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 0;
+titre	numeropost	maxnumrep
+SELECT FOUND_ROWS();
+FOUND_ROWS()
+3
 drop table t1;

mysql-test/r/subselect.result

@@ -269,3 +269,23 @@ INSERT INTO iftest VALUES ();
 SELECT field FROM iftest WHERE 1=(SELECT 1 UNION ALL SELECT 1 FROM (SELECT 1) HAVING field='b');
 Subselect returns more than 1 record
 drop table iftest;
+drop table if exists threadhardwarefr7;
+CREATE TABLE `threadhardwarefr7` (
+`numeropost` mediumint(8) unsigned NOT NULL default '0',
+`numreponse` int(10) unsigned NOT NULL auto_increment,
+`pseudo` varchar(35) NOT NULL default '',
+PRIMARY KEY  (`numeropost`,`numreponse`),
+UNIQUE KEY `numreponse` (`numreponse`),
+KEY `pseudo` (`pseudo`,`numeropost`)
+) TYPE=MyISAM;
+INSERT INTO threadhardwarefr7 (numeropost,numreponse,pseudo) VALUES (1,1,'joce'),(1,2,'joce'),(1,3,'test');
+EXPLAIN SELECT numreponse FROM threadhardwarefr7 WHERE numeropost='1' AND numreponse=(SELECT 1 FROM threadhardwarefr7 WHERE numeropost='1');
+Subselect returns more than 1 record
+EXPLAIN SELECT MAX(numreponse) FROM threadhardwarefr7 WHERE numeropost='1';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE								Select tables optimized away
+EXPLAIN SELECT numreponse FROM threadhardwarefr7 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM threadhardwarefr7 WHERE numeropost='1');
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	threadhardwarefr7	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	
+2	SUBSELECT								Select tables optimized away
+drop table if exists threadhardwarefrtest7;

mysql-test/t/create.test

@@ -110,3 +110,6 @@ drop table t1;
 create table t1 select if('2002'='2002','Y','N');
 select * from t1;
 drop table if exists t1;
+create table t1 (a int, key(a));
+create table t2 (b int, foreign key(b) references t1(a), key(b));
+drop table if exists t1,t2;

mysql-test/t/derived.test

@@ -22,3 +22,15 @@ drop table if exists  t1.t2,t3;
 select * from (select 1);
 select a from (select 1 as a);
 select 1 from (select 1);
+drop table if exists t1;
+create table t1(a int not null, t char(8), index(a));
+disable_query_log;
+let $1 = 10000;
+while ($1)
+ {
+  eval insert into t1 values ($1,'$1'); 
+  dec $1;
+ }
+enable_query_log;
+SELECT * FROM (SELECT * FROM t1) ORDER BY a  ASC LIMIT 0,20;
+drop table if exists  t1;
\ No newline at end of file

mysql-test/t/select_found.test

@@ -84,4 +84,10 @@ INSERT INTO t1 (titre,maxnumrep) VALUES
 ('test1','1'),('test2','2'),('test3','3');
 SELECT SQL_CALC_FOUND_ROWS titre,numeropost,maxnumrep FROM t1 WHERE numeropost IN (1,2) ORDER BY maxnumrep DESC LIMIT 0, 1;
 SELECT FOUND_ROWS();
+SELECT SQL_CALC_FOUND_ROWS 1 FROM (SELECT 1) LIMIT 0;
+SELECT FOUND_ROWS();
+SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE numeropost > 1  LIMIT 0;
+SELECT FOUND_ROWS();
+SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 0;
+SELECT FOUND_ROWS();
 drop table t1;

mysql-test/t/subselect.test

@@ -166,3 +166,19 @@ INSERT INTO iftest VALUES ();
 -- error 1240
 SELECT field FROM iftest WHERE 1=(SELECT 1 UNION ALL SELECT 1 FROM (SELECT 1) HAVING field='b');
 drop table iftest;
+
+drop table if exists threadhardwarefr7;
+CREATE TABLE `threadhardwarefr7` (
+  `numeropost` mediumint(8) unsigned NOT NULL default '0',
+  `numreponse` int(10) unsigned NOT NULL auto_increment,
+  `pseudo` varchar(35) NOT NULL default '',
+  PRIMARY KEY  (`numeropost`,`numreponse`),
+  UNIQUE KEY `numreponse` (`numreponse`),
+  KEY `pseudo` (`pseudo`,`numeropost`)
+) TYPE=MyISAM;
+INSERT INTO threadhardwarefr7 (numeropost,numreponse,pseudo) VALUES (1,1,'joce'),(1,2,'joce'),(1,3,'test');
+-- error 1240
+EXPLAIN SELECT numreponse FROM threadhardwarefr7 WHERE numeropost='1' AND numreponse=(SELECT 1 FROM threadhardwarefr7 WHERE numeropost='1');
+EXPLAIN SELECT MAX(numreponse) FROM threadhardwarefr7 WHERE numeropost='1';
+EXPLAIN SELECT numreponse FROM threadhardwarefr7 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM threadhardwarefr7 WHERE numeropost='1');
+drop table if exists threadhardwarefrtest7;

sql/sql_class.cc

@@ -881,7 +881,8 @@ bool select_singleval_subselect::send_data(List<Item> &items)
 {
   DBUG_ENTER("select_singleval_subselect::send_data");
   Item_singleval_subselect *it= (Item_singleval_subselect *)item;
-  if (it->assigned()){
+  if (it->assigned())
+  {
       my_message(ER_SUBSELECT_NO_1_ROW, ER(ER_SUBSELECT_NO_1_ROW), MYF(0));
     DBUG_RETURN(1);
   }

sql/sql_delete.cc

@@ -35,13 +35,13 @@ int mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ORDER *order,
   SQL_SELECT	*select=0;
   READ_RECORD	info;
   bool 		using_limit=limit != HA_POS_ERROR;
-  bool	        using_transactions;
+  bool	        using_transactions, safe_update;
   ha_rows	deleted;
   DBUG_ENTER("mysql_delete");
 
   if (!table_list->db)
     table_list->db=thd->db;
-  if ((thd->options & OPTION_SAFE_UPDATES) && !conds)
+  if (((safe_update=thd->options & OPTION_SAFE_UPDATES)) && !conds)
   {
     send_error(thd,ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE);
     DBUG_RETURN(1);
@@ -58,7 +58,7 @@ int mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ORDER *order,
 
   /* Test if the user wants to delete all rows */
   if (!using_limit && (!conds || conds->const_item()) &&
-      !(specialflag & (SPECIAL_NO_NEW_FUNC | SPECIAL_SAFE_MODE)))
+      !(specialflag & (SPECIAL_NO_NEW_FUNC | SPECIAL_SAFE_MODE)) && !safe_update)
   {
     deleted= table->file->records;
     if (!(error=table->file->delete_all_rows()))
@@ -79,9 +79,7 @@ int mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ORDER *order,
   select=make_select(table,0,0,conds,&error);
   if (error)
     DBUG_RETURN(-1);
-  if ((select && select->check_quick(test(thd->options & OPTION_SAFE_UPDATES),
-				     limit)) || 
-      !limit)
+  if ((select && select->check_quick(safe_update, limit)) || !limit)
   {
     delete select;
     send_ok(thd,0L);
@@ -92,7 +90,7 @@ int mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ORDER *order,
   if (!table->quick_keys)
   {
     thd->lex.select_lex.options|=QUERY_NO_INDEX_USED;
-    if ((thd->options & OPTION_SAFE_UPDATES) && limit == HA_POS_ERROR)
+    if (safe_update && !using_limit)
     {
       delete select;
       send_error(thd,ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE);

sql/sql_derived.cc

@@ -119,7 +119,7 @@ int mysql_derived(THD *thd, LEX *lex, SELECT_LEX_UNIT *unit, TABLE_LIST *t)
 	  table->tmp_table=TMP_TABLE;
 	  if (!lex->describe)
 	    sl->exclude();
-	  t->db="";
+	  t->db=(char *)"";
 	  t->derived=(SELECT_LEX *)0; // just in case ...
 	}
       }

sql/sql_select.cc

@@ -324,6 +324,7 @@ JOIN::prepare(TABLE_LIST *tables_init,
   this->group= group_list != 0;
   row_limit= ((select_distinct || order || group_list) ? HA_POS_ERROR :
 	      unit->select_limit_cnt);
+  do_send_rows = (row_limit) ? 1 : 0;
   this->unit= unit;
 
 #ifdef RESTRICTED_GROUP
@@ -371,14 +372,18 @@ JOIN::optimize()
   }
 #endif
 
-  conds=optimize_cond(conds,&cond_value);
-  if (thd->fatal_error || thd->net.report_error)
+  conds= optimize_cond(conds,&cond_value);
+  if (thd->fatal_error)
   {
+    // quick abort
     delete procedure;
-    error = 0;
+    error= 0;
     DBUG_RETURN(1);
-  }
-  if (cond_value == Item::COND_FALSE || !unit->select_limit_cnt)
+  } else if (thd->net.report_error)
+    // normal error processing & cleanup
+    DBUG_RETURN(-1);
+
+  if (cond_value == Item::COND_FALSE || (!unit->select_limit_cnt && !(select_options & OPTION_FOUND_ROWS)))
   {					/* Impossible cond */
     zero_result_cause= "Impossible WHERE";
     DBUG_RETURN(0);
@@ -395,13 +400,7 @@ JOIN::optimize()
 	zero_result_cause= "No matching min/max row";
 	DBUG_RETURN(0);
       }
-      if (select_options & SELECT_DESCRIBE)
-      {
-	select_describe(this, false, false, false,
-			"Select tables optimized away");
-	delete procedure;
-	DBUG_RETURN(1);
-      }
+      zero_result_cause= "Select tables optimized away";
       tables_list= 0;					// All tables resolved
     }
   }
@@ -663,7 +662,8 @@ JOIN::exec()
   {                                           // Only test of functions
     error=0;
     if (select_options & SELECT_DESCRIBE)
-      select_describe(this, false, false, false, "No tables used");
+      select_describe(this, false, false, false,
+		      (zero_result_cause?zero_result_cause:"No tables used"));
     else
     {
       result->send_fields(fields_list,1);
@@ -672,7 +672,10 @@ JOIN::exec()
 	if (do_send_rows && result->send_data(fields_list))
 	  error= 1;
 	else
+	{
 	  error= (int) result->send_eof();
+	  send_records=1;
+	}
       }
       else
 	error=(int) result->send_eof();
@@ -2613,8 +2616,8 @@ make_simple_join(JOIN *join,TABLE *tmp_table)
   join->sum_funcs=0;
   join->send_records=(ha_rows) 0;
   join->group=0;
-  join->do_send_rows = 1;
   join->row_limit=join->unit->select_limit_cnt;
+  join->do_send_rows = (join->row_limit) ? 1 : 0;
 
   join_tab->cache.buff=0;			/* No cacheing */
   join_tab->table=tmp_table;
@@ -7527,8 +7530,8 @@ int mysql_explain_union(THD *thd, SELECT_LEX_UNIT *unit, select_result *result)
       break;
 
   }
-  if (res > 0)
-    res= -res; // mysql_explain_select do not report error
+  if (res > 0 || thd->net.report_error)
+    res= -1; // mysql_explain_select do not report error
   DBUG_RETURN(res);
 }
 

sql/sql_table.cc

@@ -523,7 +523,7 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
 
   key_iterator.rewind();
   key_number=0;
-  for (; (key=key_iterator++) ; key_info++, key_number++)
+  for (; (key=key_iterator++) ; key_number++)
   {
     uint key_length=0;
     key_part_spec *column;
@@ -734,6 +734,7 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
       my_error(ER_TOO_LONG_KEY,MYF(0),max_key_length);
       DBUG_RETURN(-1);
     }
+    key_info++;
   }
   if (!unique_key && !primary_key &&
       (file->table_flags() & HA_REQUIRE_PRIMARY_KEY))