Bug fix for NATURAL JOIN, Split manual sections and more statistic variables

include/my_sys.h

@@ -187,7 +187,7 @@ extern char *get_charsets_dir(char *buf);
 extern ulong	_my_cache_w_requests,_my_cache_write,_my_cache_r_requests,
 		_my_cache_read;
 extern ulong	 _my_blocks_used,_my_blocks_changed;
-extern uint	my_file_opened,my_stream_opened;
+extern ulong	my_file_opened,my_stream_opened, my_tmp_file_created;
 extern my_bool	key_cache_inited;
 
 					/* Point to current my_message() */

libmysql/libmysql.c

@@ -684,8 +684,8 @@ 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",
- "character-set-dir", "default-character-set",
+ "ssl-key" ,"ssl-cert" ,"ssl-ca" ,"ssl-capath",
+ "character-set-dir", "default-character-set", "interactive-timeout",
  NullS
 };
 
@@ -815,6 +815,9 @@ static void mysql_read_default_options(struct st_mysql_options *options,
 	  my_free(options->charset_name,MYF(MY_ALLOW_ZERO_PTR));
           options->charset_name = my_strdup(opt_arg, MYF(MY_WME));
 	  break;
+	case 19:				/* Interactive-timeout */
+	  options->client_flag|=CLIENT_INTERACTIVE;
+	  break;
 	default:
 	  DBUG_PRINT("warning",("unknown option: %s",option[0]));
 	}

mysys/mf_tempfile.c

@@ -170,5 +170,7 @@ File create_temp_file(char *to, const char *dir, const char *prefix,
     }
   }
 #endif
+  if (file >= 0)
+    thread_safe_increment(my_tmp_file_created,&THR_LOCK_open);
   DBUG_RETURN(file);
 }

mysys/my_static.c

@@ -30,7 +30,7 @@
 my_string	home_dir=0,my_progname=0;
 char		NEAR curr_dir[FN_REFLEN]= {0},
 		NEAR home_dir_buff[FN_REFLEN]= {0};
-uint		my_stream_opened=0,my_file_opened=0;
+ulong		my_stream_opened=0,my_file_opened=0, my_tmp_file_created=0;
 int		NEAR my_umask=0664, NEAR my_umask_dir=0777;
 #ifndef THREAD
 int		NEAR my_errno=0;

sql-bench/crash-me.sh

@@ -292,7 +292,7 @@ $dbh->do("drop table crash_q");
 report("truncate","truncate_table",
        "create table crash_q (a integer, b integer,c CHAR(10))",
        "truncate crash_q",
-       "drop table crash_q1");
+       "drop table crash_q");
 
 if ($dbh->do("create table crash_q (a integer, b integer,c CHAR(10))") &&
     $dbh->do("create table crash_q1 (a integer, b integer,c CHAR(10) not null)"))

sql-bench/limits/mysql-3.23.cfg

-#This file is automaticly generated by crash-me 1.50
+#This file is automaticly generated by crash-me 1.51
 
 NEG=yes					# update of column= -column
 Need_cast_for_null=no			# Need to cast NULL for arithmetic
@@ -31,12 +31,12 @@ comment_--=yes				# -- as comment (ANSI)
 comment_/**/=yes			# /* */ as comment
 comment_//=no				# // as comment (ANSI)
 compute=no				# Compute
-connections=30				# Simultaneous connections (installation default)
+connections=101				# Simultaneous connections (installation default)
 constraint_check=no			# Column constraints
 constraint_check_table=no		# Table constraints
 constraint_null=yes			# NULL constraint (SyBase style)
 crash_me_safe=yes			# crash me safe
-crash_me_version=1.50			# crash me version
+crash_me_version=1.51			# crash me version
 create_default=yes			# default value for column
 create_default_func=no			# default value function for column
 create_if_not_exists=yes		# create table if not exists
@@ -315,7 +315,7 @@ intersect=no				# intersect
 intersect_all=no			# intersect all
 intersect_all_incompat=no		# intersect all (incompatible lists)
 intersect_incompat=no			# intersect (incompatible lists)
-join_tables=31				# tables in join
+join_tables=63				# tables in join
 left_outer_join=yes			# left outer join
 left_outer_join_using=yes		# left outer join using
 like_with_column=yes			# column LIKE column
@@ -327,7 +327,7 @@ max_char_size=255			# max char() size
 max_column_name=64			# column name length
 max_columns=3398			# Columns in table
 max_conditions=85660			# OR and AND in WHERE
-max_expressions=859			# simple expressions
+max_expressions=1837			# simple expressions
 max_index=32				# max index
 max_index_length=500			# index length
 max_index_name=64			# index name length
@@ -337,7 +337,7 @@ max_index_varchar_part_length=255	# index varchar part length
 max_row_length=65534			# max table row length (without blobs)
 max_row_length_with_null=65502		# table row length with nulls (without blobs)
 max_select_alias_name=+512		# select alias name length
-max_stack_expression=859		# stacked expressions
+max_stack_expression=1837		# stacked expressions
 max_table_alias_name=+512		# table alias name length
 max_table_name=64			# table name length
 max_text_size=1048543			# max text or blob size
@@ -361,7 +361,7 @@ null_in_index=yes			# null in index
 null_in_unique=yes			# null in unique index
 null_num_expr=yes			# Is 1+NULL = NULL
 odbc_left_outer_join=yes		# left outer join odbc style
-operating_system=Linux 2.2.14-my-SMP i686	# crash-me tested on
+operating_system=Linux 2.2.13-SMP alpha	# crash-me tested on
 order_by=yes				# Order by
 order_by_alias=yes			# Order by alias
 order_by_function=yes			# Order by function
@@ -380,7 +380,7 @@ quote_with_"=yes			# Allows ' and " as string markers
 remember_end_space=no			# Remembers end space in char()
 remember_end_space_varchar=no		# Remembers end space in varchar()
 rename_table=yes			# rename table
-repeat_string_size=1048576		# return string size from function
+repeat_string_size=1047552		# return string size from function
 right_outer_join=yes			# right outer join
 rowid=auto_increment			# Type for row id
 select_constants=yes			# Select constants
@@ -389,7 +389,7 @@ select_limit2=yes			# SELECT with LIMIT #,#
 select_string_size=1048565		# constant string size in SELECT
 select_table_update=no			# Update with sub select
 select_without_from=yes			# SELECT without FROM
-server_version=MySQL 3.23.25 beta debug	# server version
+server_version=MySQL 3.23.28 gamma	# server version
 simple_joins=yes			# ANSI SQL simple joins
 storage_of_float=round			# Storage of float values
 subqueries=no				# subqueries
@@ -398,6 +398,7 @@ table_name_case=no			# case independent table names
 table_wildcard=yes			# Select table_name.*
 tempoary_table=yes			# temporary tables
 transactions=no				# transactions
+truncate_table=yes			# truncate
 type_extra_abstime=no			# Type abstime
 type_extra_bfile=no			# Type bfile
 type_extra_blob=yes			# Type blob
@@ -512,5 +513,6 @@ union_all_incompat=no			# union all (incompatible lists)
 union_incompat=no			# union (incompatible lists)
 unique_in_create=yes			# unique in create table
 unique_null_in_create=yes		# unique null in create
+user_comment=Alpha DS20 2x500 MHz, 2G memory, key_buffer=16M; ccc + cxx	# comment
 views=no				# views
 where_string_size=1048540		# constant string size in where

sql-bench/limits/mysql.cfg

-#This file is automaticly generated by crash-me 1.50
+#This file is automaticly generated by crash-me 1.51
 
 NEG=yes					# update of column= -column
 Need_cast_for_null=no			# Need to cast NULL for arithmetic
@@ -31,12 +31,12 @@ comment_--=yes				# -- as comment (ANSI)
 comment_/**/=yes			# /* */ as comment
 comment_//=no				# // as comment (ANSI)
 compute=no				# Compute
-connections=30				# Simultaneous connections (installation default)
+connections=101				# Simultaneous connections (installation default)
 constraint_check=no			# Column constraints
 constraint_check_table=no		# Table constraints
 constraint_null=yes			# NULL constraint (SyBase style)
 crash_me_safe=yes			# crash me safe
-crash_me_version=1.50			# crash me version
+crash_me_version=1.51			# crash me version
 create_default=yes			# default value for column
 create_default_func=no			# default value function for column
 create_if_not_exists=yes		# create table if not exists
@@ -315,7 +315,7 @@ intersect=no				# intersect
 intersect_all=no			# intersect all
 intersect_all_incompat=no		# intersect all (incompatible lists)
 intersect_incompat=no			# intersect (incompatible lists)
-join_tables=31				# tables in join
+join_tables=63				# tables in join
 left_outer_join=yes			# left outer join
 left_outer_join_using=yes		# left outer join using
 like_with_column=yes			# column LIKE column
@@ -327,7 +327,7 @@ max_char_size=255			# max char() size
 max_column_name=64			# column name length
 max_columns=3398			# Columns in table
 max_conditions=85660			# OR and AND in WHERE
-max_expressions=859			# simple expressions
+max_expressions=1837			# simple expressions
 max_index=32				# max index
 max_index_length=500			# index length
 max_index_name=64			# index name length
@@ -337,7 +337,7 @@ max_index_varchar_part_length=255	# index varchar part length
 max_row_length=65534			# max table row length (without blobs)
 max_row_length_with_null=65502		# table row length with nulls (without blobs)
 max_select_alias_name=+512		# select alias name length
-max_stack_expression=859		# stacked expressions
+max_stack_expression=1837		# stacked expressions
 max_table_alias_name=+512		# table alias name length
 max_table_name=64			# table name length
 max_text_size=1048543			# max text or blob size
@@ -361,7 +361,7 @@ null_in_index=yes			# null in index
 null_in_unique=yes			# null in unique index
 null_num_expr=yes			# Is 1+NULL = NULL
 odbc_left_outer_join=yes		# left outer join odbc style
-operating_system=Linux 2.2.14-my-SMP i686	# crash-me tested on
+operating_system=Linux 2.2.13-SMP alpha	# crash-me tested on
 order_by=yes				# Order by
 order_by_alias=yes			# Order by alias
 order_by_function=yes			# Order by function
@@ -380,7 +380,7 @@ quote_with_"=yes			# Allows ' and " as string markers
 remember_end_space=no			# Remembers end space in char()
 remember_end_space_varchar=no		# Remembers end space in varchar()
 rename_table=yes			# rename table
-repeat_string_size=1048576		# return string size from function
+repeat_string_size=1047552		# return string size from function
 right_outer_join=yes			# right outer join
 rowid=auto_increment			# Type for row id
 select_constants=yes			# Select constants
@@ -389,7 +389,7 @@ select_limit2=yes			# SELECT with LIMIT #,#
 select_string_size=1048565		# constant string size in SELECT
 select_table_update=no			# Update with sub select
 select_without_from=yes			# SELECT without FROM
-server_version=MySQL 3.23.25 beta debug	# server version
+server_version=MySQL 3.23.28 gamma	# server version
 simple_joins=yes			# ANSI SQL simple joins
 storage_of_float=round			# Storage of float values
 subqueries=no				# subqueries
@@ -398,6 +398,7 @@ table_name_case=no			# case independent table names
 table_wildcard=yes			# Select table_name.*
 tempoary_table=yes			# temporary tables
 transactions=no				# transactions
+truncate_table=yes			# truncate
 type_extra_abstime=no			# Type abstime
 type_extra_bfile=no			# Type bfile
 type_extra_blob=yes			# Type blob
@@ -512,5 +513,6 @@ union_all_incompat=no			# union all (incompatible lists)
 union_incompat=no			# union (incompatible lists)
 unique_in_create=yes			# unique in create table
 unique_null_in_create=yes		# unique null in create
+user_comment=Alpha DS20 2x500 MHz, 2G memory, key_buffer=16M; ccc + cxx	# comment
 views=no				# views
 where_string_size=1048540		# constant string size in where

sql/filesort.cc

@@ -716,6 +716,8 @@ static int merge_buffers(SORTPARAM *param, IO_CACHE *from_file,
   volatile bool *killed= &current_thd->killed;
   DBUG_ENTER("merge_buffers");
 
+  statistic_increment(filesort_merge_passes, &LOCK_status);
+
   count=error=0;
   offset=param->sort_length-param->ref_length;
   maxcount=(ulong) (param->keys/((uint) (Tb-Fb) +1));

sql/mysql_priv.h

@@ -160,6 +160,10 @@ void kill_one_thread(THD *thd, ulong id);
 #define OPTION_QUICK		OPTION_BEGIN*2
 #define OPTION_QUOTE_SHOW_CREATE OPTION_QUICK*2
 
+/* The following is set when parsing the query */
+#define OPTION_NO_INDEX_USED		OPTION_QUOTE_SHOW_CREATE*2
+#define OPTION_NO_GOOD_INDEX_USED	OPTION_NO_INDEX_USED*2
+
 #define RAID_BLOCK_SIZE 1024
 
 /* BINLOG_DUMP options */
@@ -445,6 +449,7 @@ extern ulong refresh_version,flush_version, thread_id,query_id,opened_tables,
 	     delayed_insert_threads, delayed_insert_writes,
 	     delayed_rows_in_use,delayed_insert_errors;
 extern ulong filesort_rows, filesort_range_count, filesort_scan_count;
+extern ulong filesort_merge_passes;
 extern ulong select_range_check_count, select_range_count, select_scan_count;
 extern ulong select_full_range_join_count,select_full_join_count;
 extern uint test_flags,select_errors,mysql_port,ha_open_options;
@@ -615,6 +620,7 @@ inline bool add_group_to_list(Item *item,bool asc)
 inline void mark_as_null_row(TABLE *table)
 {
   table->null_row=1;
+  table->status|=STATUS_NULL_ROW;
   bfill(table->null_flags,table->null_bytes,255);
 }
 

sql/mysqld.cc

@@ -222,6 +222,7 @@ ulong query_id=1L,long_query_count,long_query_time,aborted_threads,
       delayed_queue_size,delayed_insert_threads,delayed_insert_writes,
       delayed_rows_in_use,delayed_insert_errors,flush_time;
 ulong filesort_rows, filesort_range_count, filesort_scan_count;
+ulong filesort_merge_passes;
 ulong select_range_check_count, select_range_count, select_scan_count;
 ulong select_full_range_join_count,select_full_join_count;
 ulong specialflag=0,opened_tables=0,created_tmp_tables=0,
@@ -2517,6 +2518,7 @@ struct show_var_st status_vars[]= {
   {"Connections",              (char*) &thread_id,              SHOW_LONG_CONST},
   {"Created_tmp_disk_tables",  (char*) &created_tmp_disk_tables,SHOW_LONG},
   {"Created_tmp_tables",       (char*) &created_tmp_tables,     SHOW_LONG},
+  {"Created_tmp_files",	       (char*) &my_tmp_file_created,	SHOW_LONG},
   {"Delayed_insert_threads",   (char*) &delayed_insert_threads, SHOW_LONG},
   {"Delayed_writes",           (char*) &delayed_insert_writes,  SHOW_LONG},
   {"Delayed_errors",           (char*) &delayed_insert_errors,  SHOW_LONG},
@@ -2551,6 +2553,7 @@ struct show_var_st status_vars[]= {
   {"Slave_running",            (char*) &slave_running,          SHOW_BOOL},
   {"Slow_launch_threads",      (char*) &slow_launch_threads,    SHOW_LONG},
   {"Slow_queries",             (char*) &long_query_count,       SHOW_LONG},
+  {"Sort_merge_passes",	       (char*) &filesort_merge_passes,  SHOW_LONG},
   {"Sort_range",	       (char*) &filesort_range_count,   SHOW_LONG},
   {"Sort_rows",		       (char*) &filesort_rows,	        SHOW_LONG},
   {"Sort_scan",		       (char*) &filesort_scan_count,    SHOW_LONG},

sql/sql_base.cc

@@ -1783,6 +1783,8 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
 	      DBUG_RETURN(1);
 	    tmp->fix_length_and_dec();	// Update cmp_type
 	    tmp->const_item_cache=0;
+	    /* Mark field used for table cache */
+	    t1->field[i]->query_id=t2->field[j]->query_id=thd->query_id;
 	    cond_and->list.push_back(tmp);
 	    if ((tmp_map=t1->field[i]->part_of_key))
 	    {

sql/sql_delete.cc

@@ -173,14 +173,16 @@ int mysql_delete(THD *thd,TABLE_LIST *table_list,COND *conds,ha_rows limit,
   }
 
   /* If running in safe sql mode, don't allow updates without keys */
-  if ((thd->options & OPTION_SAFE_UPDATES) && !table->quick_keys &&
-      limit == HA_POS_ERROR)
+  if (!table->quick_keys)
+  {
+    thd->options|=OPTION_NO_INDEX_USED;
+    if ((thd->options & OPTION_SAFE_UPDATES) && limit == HA_POS_ERROR)
     {
       delete select;
       send_error(&thd->net,ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE);
       DBUG_RETURN(1);
     }
-
+  }
   (void) table->file->extra(HA_EXTRA_NO_READCHECK);
   if (options & OPTION_QUICK)
     (void) table->file->extra(HA_EXTRA_QUICK);    

sql/sql_parse.cc

@@ -825,7 +825,9 @@ bool do_command(THD *thd)
   /* If not reading from backup and if the query took too long */
   if (!thd->user_time)
   {
-    if ((ulong) (thd->start_time - thd->time_after_lock) > long_query_time)
+    if ((ulong) (thd->start_time - thd->time_after_lock) > long_query_time ||
+	((thd->options & (OPTION_NO_INDEX_USED | OPTION_NO_GOOD_INDEX_USED)) &&
+	 (specialflag & SPECIAL_LONG_LOG_FORMAT)))
     {
       long_query_count++;
       mysql_slow_log.write(thd, thd->query, thd->query_length, start_of_query);

sql/sql_select.cc

@@ -2420,6 +2420,7 @@ make_join_readinfo(JOIN *join,uint options)
       /* These init changes read_record */
       if (tab->use_quick == 2)
       {
+	join->thd->options|=OPTION_NO_GOOD_INDEX_USED;
 	tab->read_first_record= join_init_quick_read_record;
 	statistic_increment(select_range_check_count, &LOCK_status);
       }
@@ -2434,6 +2435,7 @@ make_join_readinfo(JOIN *join,uint options)
 	  }
 	  else
 	  {
+	    join->thd->options|=OPTION_NO_INDEX_USED;
 	    statistic_increment(select_scan_count, &LOCK_status);
 	  }
 	}
@@ -2445,6 +2447,7 @@ make_join_readinfo(JOIN *join,uint options)
 	  }
 	  else
 	  {
+	    join->thd->options|=OPTION_NO_INDEX_USED;
 	    statistic_increment(select_full_join_count, &LOCK_status);
 	  }
 	}
@@ -4234,7 +4237,7 @@ join_read_key(JOIN_TAB *tab)
   TABLE *table= tab->table;
 
   if (cmp_buffer_with_ref(tab) ||
-      (table->status & (STATUS_GARBAGE | STATUS_NO_PARENT)))
+      (table->status & (STATUS_GARBAGE | STATUS_NO_PARENT | STATUS_NULL_ROW)))
   {
     if (tab->ref.key_err)
     {
@@ -4252,6 +4255,7 @@ join_read_key(JOIN_TAB *tab)
       return 1;
     }
   }
+  table->null_row=0;
   return table->status ? -1 : 0;
 }
 

sql/sql_update.cc

@@ -100,15 +100,17 @@ int mysql_update(THD *thd,TABLE_LIST *table_list,List<Item> &fields,
     DBUG_RETURN(0);
   }
   /* If running in safe sql mode, don't allow updates without keys */
-  if ((thd->options & OPTION_SAFE_UPDATES) && !table->quick_keys &&
-      limit == HA_POS_ERROR)
+  if (!table->quick_keys)
+  {
+    thd->options|=OPTION_NO_INDEX_USED;
+    if ((thd->options & OPTION_SAFE_UPDATES) && limit == HA_POS_ERROR)
     {
       delete select;
       table->time_stamp=save_time_stamp;
       send_error(&thd->net,ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE);
       DBUG_RETURN(1);
     }
-
+  }
   /* Check if we are modifying a key that we are used to search with */
   if (select && select->quick)
     used_key_is_modified= (!select->quick->unique_key_range() &&

sql/structs.h

@@ -161,3 +161,4 @@ typedef struct	st_lex_user {
 #define STATUS_NO_PARENT	4	/* Parent record wasn't found */
 #define STATUS_NOT_READ		8	/* Record isn't read */
 #define STATUS_UPDATED		16	/* Record is updated by formula */
+#define STATUS_NULL_ROW		32	/* table->null_row is set */

support-files/my-huge.cnf.sh

@@ -62,3 +62,6 @@ set-variable	= key_buffer=256M
 set-variable	= sort_buffer=256M
 set-variable	= read_buffer=2M
 set-variable	= write_buffer=2M
+
+[mysqlhotcopy]
+interactive-timeout

support-files/my-large.cnf.sh

@@ -62,3 +62,6 @@ set-variable	= key_buffer=128M
 set-variable	= sort_buffer=128M
 set-variable	= read_buffer=2M
 set-variable	= write_buffer=2M
+
+[mysqlhotcopy]
+interactive-timeout

support-files/my-medium.cnf.sh

@@ -61,3 +61,6 @@ set-variable	= key_buffer=20M
 set-variable	= sort_buffer=20M
 set-variable	= read_buffer=2M
 set-variable	= write_buffer=2M
+
+[mysqlhotcopy]
+interactive-timeout

support-files/my-small.cnf.sh

@@ -55,3 +55,6 @@ set-variable	= sort_buffer=8M
 [myisamchk]
 set-variable	= key_buffer=8M
 set-variable	= sort_buffer=8M
+
+[mysqlhotcopy]
+interactive-timeout