Print right hostname or IP in SHOW PROCESSLIST

Use SESSION TABLE_HANDLER as default table handler if given table handler doesn't exists


Docs/internals.texi:
  Updated description for how DATE, TIME and TIMESTAMP are stored
mysql-test/r/create.result:
  New tests
mysql-test/t/create.test:
  New tests
sql/handler.cc:
  Use SESSION TABLE_HANDLER as default table handler if given table handler doesn't exists.
sql/sql_parse.cc:
  Fix that we return hostname instead of IP in SHOW PROCESSLIST
sql/sql_show.cc:
  Print right hostname or IP in SHOW PROCESSLIST

Docs/internals.texi

@@ -2213,11 +2213,11 @@ Storage: same as TINYINT.
 @strong{DATE}
 @itemize @bullet
 @item
-Storage: fixed-length series of binary integers, always three bytes
-long.
+Storage: 3 byte integer, low byte first.
+Packed as: 'day + month*32 + year*16*32'
 @item
-Example: a DATE column containing '0001-01-01' looks like:@*
-@code{hexadecimal 21 02 00}
+Example: a DATE column containing '1962-01-02' looks like:@*
+@code{hexadecimal 22 54 0F}
 @end itemize
 
 @strong{DATETIME}
@@ -2236,16 +2236,19 @@ Example: a DATETIME column for '0001-01-01 01:01:01' looks like:@*
 @strong{TIME}
 @itemize @bullet
 @item
-Storage: a value offset from 8385959, always three bytes long.
+Storage: 3 bytes, low byte first.
+This is stored as seconds:  days*24*3600+hours*3600+minutes*60+seconds
 @item
-Example: a TIME column containing '01:01:01' looks like:@*
-@code{hexadecimal 75 27 00}
+Example: a TIME column containing '1 02:03:04' (1 day 2 hour 3 minutes and 4 seconds) looks like:@*
+@code{hexadecimal 58 6E 01}
 @end itemize
 
 @strong{TIMESTAMP}
 @itemize @bullet
 @item
-Storage: four bytes long (NOTE TO SELF: not figured out)
+Storage: 4 bytes, low byte first.
+Stored as unix @code{time()}, which is seconds since the Epoch
+(00:00:00 UTC, January 1, 1970).
 @item
 Example: a TIMESTAMP column containing '2003-01-01 01:01:01' looks like:@*
 @code{hexadecimal 4D AE 12 23}

mysql-test/r/create.result

@@ -148,3 +148,26 @@ select * from t1;
 if('2002'='2002','Y','N')
 Y
 drop table if exists t1;
+SET SESSION table_type="heap";
+SELECT @@table_type;
+@@table_type
+HEAP
+CREATE TABLE t1 (a int not null);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL default '0'
+) TYPE=HEAP
+drop table t1;
+SET SESSION table_type="gemini";
+SELECT @@table_type;
+@@table_type
+GEMINI
+CREATE TABLE t1 (a int not null);
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL default '0'
+) TYPE=MyISAM
+SET SESSION table_type=default;
+drop table t1;

mysql-test/t/create.test

@@ -102,3 +102,20 @@ drop table t1;
 create table t1 select if('2002'='2002','Y','N');
 select * from t1;
 drop table if exists t1;
+
+#
+# Test default table type
+#
+SET SESSION table_type="heap";
+SELECT @@table_type;
+CREATE TABLE t1 (a int not null);
+show create table t1;
+drop table t1;
+# Test what happens when using a non existing table type
+SET SESSION table_type="gemini";
+SELECT @@table_type;
+CREATE TABLE t1 (a int not null);
+show create table t1;
+SET SESSION table_type=default;
+drop table t1;
+

sql/handler.cc

@@ -121,8 +121,15 @@ handler *get_new_handler(TABLE *table, enum db_type db_type)
 #endif
   case DB_TYPE_HEAP:
     return new ha_heap(table);
-  case DB_TYPE_MYISAM:
   default:					// should never happen
+  {
+    enum db_type def=(enum db_type) current_thd->variables.table_type;
+    /* Try first with 'default table type' */
+    if (db_type != def)
+      return get_new_handler(table, def);
+  }
+  /* Fall back to MyISAM */
+  case DB_TYPE_MYISAM:
     return new ha_myisam(table);
   case DB_TYPE_MRG_MYISAM:
     return new ha_myisammrg(table);

sql/sql_parse.cc

@@ -499,7 +499,10 @@ check_connections(THD *thd)
       thd->host=ip_to_hostname(&thd->remote.sin_addr,&connect_errors);
       /* Cut very long hostnames to avoid possible overflows */
       if (thd->host)
+      {
 	thd->host[min(strlen(thd->host), HOSTNAME_LENGTH)]= 0;
+	thd->host_or_ip= thd->host;
+      }
       if (connect_errors > max_connect_errors)
 	return(ER_HOST_IS_BLOCKED);
     }

sql/sql_show.cc

@@ -1064,10 +1064,10 @@ void mysqld_list_processes(THD *thd,const char *user, bool verbose)
 	{
 	  if ((thd_info->host= thd->alloc(LIST_PROCESS_HOST_LEN+1)))
 	    my_snprintf((char *) thd_info->host, LIST_PROCESS_HOST_LEN,
-			"%s:%u", thd->host_or_ip, tmp->peer_port);
+			"%s:%u", tmp->host_or_ip, tmp->peer_port);
 	}
 	else
-	  thd_info->host= thd->strdup(thd->host_or_ip);
+	  thd_info->host= thd->strdup(tmp->host_or_ip);
         if ((thd_info->db=tmp->db))             // Safe test
           thd_info->db=thd->strdup(thd_info->db);
         thd_info->command=(int) tmp->command;