Merge akishkin@work.mysql.com:/home/bk/mysql

into mysql.com:/home/walrus/bk/323

Build-tools/Do-compile

@@ -381,13 +381,15 @@ if ($opt_stage <= 9 && !$opt_no_test)
   log_system("rm -f output/*");
   $tmp= $opt_fast_benchmark ? "--fast --user root --small-test" : "";
   check_system("perl ./run-all-tests --log --die-on-errors $connect_option $tmp","RUN-mysql");
+	# Run additional fast test with dynamic-row tables
+  check_system("perl ./run-all-tests --log --suffix=\"_dynamic_rows\" --die-on-errors $connect_option --fast --user=root --small-test --create-options=\"row_format=dynamic\"","RUN-mysql");
   if ($opt_innodb)
   {
-    check_system("perl ./run-all-tests --log --suffix=\"_innodb\" --die-on-errors $connect_option $tmp --create-option=\"type=innodb\"","RUN-mysql");
+    check_system("perl ./run-all-tests --log --suffix=\"_innodb\" --die-on-errors $connect_option $tmp --create-options=\"type=innodb\"","RUN-mysql");
   }
   if ($opt_bdb)
   {
-    check_system("perl ./run-all-tests --log --suffix=\"_bdb\" --die-on-errors $connect_option $tmp --create-option=\"type=bdb\"","RUN-mysql");
+    check_system("perl ./run-all-tests --log --suffix=\"_bdb\" --die-on-errors $connect_option $tmp --create-options=\"type=bdb\"","RUN-mysql");
   }
 }
 

Docs/manual.texi

@@ -47012,6 +47012,11 @@ Changed initialisation of @code{RND()} to make it less predicatable.
 Fixed problem with @code{GROUP BY} on result with expression that created a
 @code{BLOB} field.
 @item
+Fixed problem with @code{GROUP BY} on columns that have NULL values.  To
+solve this we now create an MyISAM temporary table when doing a group by
+on a possible NULL item.  In MySQL 4.0.5 we can again use in memory HEAP
+tables for this case.
+@item
 Fixed problem with privilege tables when downgrading from 4.0.2 to 3.23.
 @item
 Fixed thread bug in @code{SLAVE START}, @code{SLAVE STOP} and automatic repair

innobase/pars/pars0grm.y

@@ -14,9 +14,8 @@ the InnoDB parser.
 /* The value of the semantic attribute is a pointer to a query tree node
 que_node_t */
 
-#include <math.h>
-
 #include "univ.i"
+#include <math.h>
 #include "pars0pars.h"
 #include "mem0mem.h"
 #include "que0types.h"

myisam/mi_open.c

@@ -495,7 +495,8 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
     extra=ALIGN_SIZE(MI_MAX_DYN_BLOCK_HEADER)+MI_SPLIT_LENGTH+
       MI_DYN_DELETE_BLOCK_HEADER;
 
-  tmp_length=max(share->base.pack_reclength,share->base.max_key_length);
+  tmp_length=max(share->base.pack_reclength+share->base.pack_bits,
+                 share->base.max_key_length);
   info.alloced_rec_buff_length=tmp_length;
   if (!(info.rec_alloc=(byte*) my_malloc(tmp_length+extra+8,
 					 MYF(MY_WME | MY_ZEROFILL))))

sql/field.h

@@ -533,6 +533,7 @@ public:
   enum Item_result result_type () const { return field_length == 8 || field_length == 14 ? INT_RESULT : STRING_RESULT; }
   enum_field_types type() const { return FIELD_TYPE_TIMESTAMP;}
   enum ha_base_keytype key_type() const { return HA_KEYTYPE_ULONG_INT; }
+  enum Item_result cmp_type () const { return INT_RESULT; }
   void store(const char *to,uint length);
   void store(double nr);
   void store(longlong nr);

sql/ha_innobase.cc

@@ -993,7 +993,10 @@ how you can resolve the problem.\n",
 
 	((row_prebuilt_t*)innobase_prebuilt)->mysql_row_len = table->reclength;
 
-  	primary_key = MAX_KEY;
+	/* Looks like MySQL-3.23 sometimes has primary key number != 0 */
+
+ 	primary_key = table->primary_key;
+	key_used_on_scan = primary_key;
 
 	/* Allocate a buffer for a 'row reference'. A row reference is
 	a string of bytes of length ref_length which uniquely specifies
@@ -1002,21 +1005,30 @@ how you can resolve the problem.\n",
         of length ref_length! */
 
   	if (!row_table_got_default_clust_index(ib_table)) {
+	        if (primary_key >= MAX_KEY) {
+	                fprintf(stderr,
+		    "InnoDB: Error: table %s has a primary key in InnoDB\n"
+		    "InnoDB: data dictionary, but not in MySQL!\n", name);
+		}
 
 		((row_prebuilt_t*)innobase_prebuilt)
 				->clust_index_was_generated = FALSE;
-
-		primary_key = 0;
-		key_used_on_scan = 0;
-
- 		/* MySQL allocates the buffer for ref. key_info->key_length
-                includes space for all key columns + one byte for each column
-		that may be NULL. ref_length must be as exact as possible to
-		save space, because all row reference buffers are allocated
-		based on ref_length. */
-
-  		ref_length = table->key_info->key_length;
+ 		/*
+		  MySQL allocates the buffer for ref. key_info->key_length
+		  includes space for all key columns + one byte for each column
+		  that may be NULL. ref_length must be as exact as possible to
+		  save space, because all row reference buffers are allocated
+		  based on ref_length.
+		*/
+ 
+  		ref_length = table->key_info[primary_key].key_length;
 	} else {
+	        if (primary_key != MAX_KEY) {
+	                fprintf(stderr,
+		    "InnoDB: Error: table %s has no primary key in InnoDB\n"
+		    "InnoDB: data dictionary, but has one in MySQL!\n", name);
+		}
+
 		((row_prebuilt_t*)innobase_prebuilt)
 				->clust_index_was_generated = TRUE;
 

sql/item_cmpfunc.cc

@@ -354,6 +354,7 @@ void Item_func_between::fix_length_and_dec()
   if (args[0]->type() == FIELD_ITEM)
   {
     Field *field=((Item_field*) args[0])->field;
+    cmp_type=field->cmp_type();
     if (field->store_for_compare())
     {
       if (convert_constant_item(field,&args[1]))

sql/mysqld.cc

@@ -251,7 +251,7 @@ extern int init_master_info(MASTER_INFO* mi);
 // and are treated as aliases for each other
 
 static bool kill_in_progress=FALSE;
-static struct rand_struct sql_rand;
+struct rand_struct sql_rand; // used by sql_class.cc:THD::THD()
 static int cleanup_done;
 static char **defaults_argv,time_zone[30];
 static const char *default_table_type_name;
@@ -2323,15 +2323,7 @@ static void create_new_thread(THD *thd)
   for (uint i=0; i < 8 ; i++)			// Generate password teststring
     thd->scramble[i]= (char) (rnd(&sql_rand)*94+33);
   thd->scramble[8]=0;
-  /* 
-     We need good random number initialization for new thread
-     Just coping global one will not work 
-  */
-  {
-    ulong tmp=(ulong) (rnd(&sql_rand) * 3000000);
-    randominit(&(thd->rand), tmp + (ulong) start_time,
-	       tmp + (ulong) thread_id);
-  }
+
   thd->real_id=pthread_self();			// Keep purify happy
 
   /* Start a new thread to handle connection */

sql/sql_class.cc

@@ -35,6 +35,8 @@
 #include <io.h>
 #endif
 
+extern struct rand_struct sql_rand;
+
 /*****************************************************************************
 ** Instansiate templates
 *****************************************************************************/
@@ -147,6 +149,18 @@ THD::THD():user_time(0),fatal_error(0),last_insert_id_used(0),
     transaction.trans_log.end_of_file= max_binlog_cache_size;
   }
 #endif
+
+  /* 
+     We need good random number initialization for new thread
+     Just coping global one will not work 
+  */
+  {
+    pthread_mutex_lock(&LOCK_thread_count);
+    ulong tmp=(ulong) (rnd(&sql_rand) * 3000000);
+    randominit(&rand, tmp + (ulong) start_time,
+	       tmp + (ulong) thread_id);
+    pthread_mutex_unlock(&LOCK_thread_count);
+  }
 }
 
 /* Do operations that may take a long time */