Split setup_fields to setup_tables and setup_fields

Fixed problem with UPDATE TABLE when keys wheren't always used.


Docs/manual.texi:
  Added comment to ALTER TABLE
scripts/mysql_install_db.sh:
  Added test for mysqld in libexec
sql/ha_innobase.cc:
  Removed compiler warning
sql/mysql_priv.h:
  Split setup_fields to setup_tables and setup_fields
sql/sql_base.cc:
  Split setup_fields to setup_tables and setup_fields
sql/sql_insert.cc:
  Split setup_fields to setup_tables and setup_fields
sql/sql_load.cc:
  Split setup_fields to setup_tables and setup_fields
sql/sql_parse.cc:
  Fixed missing 'mysql_info" with now clients.
sql/sql_select.cc:
  Split setup_fields to setup_tables and setup_fields
sql/sql_update.cc:
  Fixed problem with UPDATE TABLE when keys wheren't always used.
sql/sql_yacc.yy:
  Small isolation change

Docs/manual.texi

@@ -18704,7 +18704,13 @@ deleted and the new one is renamed. This is done in such a way that
 all updates are automatically redirected to the new table without
 any failed updates. While @code{ALTER TABLE} is executing, the original
 table is readable by other clients. Updates and writes to the table
-are stalled until the new table is ready:
+are stalled until the new table is ready.
+
+Note that if you use any other option to @code{ALTER TABLE} than
+@code{RENAME}, @strong{MySQL} will always create a temporary table, even
+if the data wouldn't strictly need to be copied (like when you change the
+name of a column). We plan to fix this in the future, but as one doesn't
+normally do @code{ALTER TABLE} that often this isn't that high on our TODO.
 
 @itemize @bullet
 @item

scripts/mysql_install_db.sh

@@ -79,9 +79,12 @@ then
   basedir=@prefix@
   bindir=@bindir@
   execdir=@libexecdir@ 
-else
+elif test -d "$basedir/libexec"
   bindir="$basedir/bin"
   execdir="$basedir/libexec"
+else
+  bindir="$basedir/bin"
+  execdir="$basedir/bin"
 fi
 
 mdata=$ldata/mysql

sql/ha_innobase.cc

@@ -2231,7 +2231,7 @@ ha_innobase::create(
 
   	/* Create the table definition in Innobase */
 
-  	if (error = create_table_def(trx, form, norm_name)) {
+  	if ((error = create_table_def(trx, form, norm_name))) {
 
 		trx_commit_for_mysql(trx);
 

sql/mysql_priv.h

@@ -402,6 +402,7 @@ TABLE *unlink_open_table(THD *thd,TABLE *list,TABLE *find);
 SQL_SELECT *make_select(TABLE *head, table_map const_tables,
 			table_map read_tables, COND *conds, int *error);
 Item ** find_item_in_list(Item *item,List<Item> &items);
+bool setup_tables(TABLE_LIST *tables);
 int setup_fields(THD *thd,TABLE_LIST *tables,List<Item> &item,
 		 bool set_query_id,List<Item> *sum_func_list);
 int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds);

sql/sql_base.cc

@@ -39,7 +39,7 @@ static bool insert_fields(THD *thd,TABLE_LIST *tables, const char *table_name,
 			  List_iterator<Item> *it);
 static void free_cache_entry(TABLE *entry);
 static void mysql_rm_tmp_tables(void);
-static key_map get_key_map_from_key_list(THD *thd, TABLE *table,
+static key_map get_key_map_from_key_list(TABLE *table,
 					 List<String> *index_list);
 
 
@@ -1711,11 +1711,8 @@ find_item_in_list(Item *find,List<Item> &items)
   return found;
 }
 
-
 /****************************************************************************
 ** Check that all given fields exists and fill struct with current data
-** Check also that the 'used keys' and 'ignored keys' exists and set up the
-** table structure accordingly
 ****************************************************************************/
 
 int setup_fields(THD *thd, TABLE_LIST *tables, List<Item> &fields,
@@ -1729,7 +1726,36 @@ int setup_fields(THD *thd, TABLE_LIST *tables, List<Item> &fields,
   thd->allow_sum_func= test(sum_func_list);
   thd->where="field list";
 
-  /* Remap table numbers if INSERT ... SELECT */
+  while ((item=it++))
+  {
+    if (item->type() == Item::FIELD_ITEM &&
+	((Item_field*) item)->field_name[0] == '*')
+    {
+      if (insert_fields(thd,tables,((Item_field*) item)->table_name,&it))
+	DBUG_RETURN(-1); /* purecov: inspected */
+    }
+    else
+    {
+      if (item->fix_fields(thd,tables))
+	DBUG_RETURN(-1); /* purecov: inspected */
+      if (item->with_sum_func && item->type() != Item::SUM_FUNC_ITEM)
+	item->split_sum_func(*sum_func_list);
+      thd->used_tables|=item->used_tables();
+    }
+  }
+  DBUG_RETURN(test(thd->fatal_error));
+}
+
+
+/*
+  Remap table numbers if INSERT ... SELECT
+  Check also that the 'used keys' and 'ignored keys' exists and set up the
+  table structure accordingly
+*/
+
+bool setup_tables(TABLE_LIST *tables)
+{
+  DBUG_ENTER("setup_tables");
   uint tablenr=0;
   for (TABLE_LIST *table=tables ; table ; table=table->next,tablenr++)
   {
@@ -1739,48 +1765,31 @@ int setup_fields(THD *thd, TABLE_LIST *tables, List<Item> &fields,
       table->table->maybe_null=1;		// LEFT OUTER JOIN ...
     if (table->use_index)
     {
-      key_map map= get_key_map_from_key_list(thd,table->table,
+      key_map map= get_key_map_from_key_list(table->table,
 					     table->use_index);
       if (map == ~(key_map) 0)
-	DBUG_RETURN(-1);
+	DBUG_RETURN(1);
       table->table->keys_in_use_for_query=map;
     }
     if (table->ignore_index)
     {
-      key_map map= get_key_map_from_key_list(thd,table->table,
+      key_map map= get_key_map_from_key_list(table->table,
 					     table->ignore_index);
       if (map == ~(key_map) 0)
-	DBUG_RETURN(-1);
+	DBUG_RETURN(1);
       table->table->keys_in_use_for_query &= ~map;
     }
   }
   if (tablenr > MAX_TABLES)
   {
     my_error(ER_TOO_MANY_TABLES,MYF(0),MAX_TABLES);
-    DBUG_RETURN(-1);
-  }
-  while ((item=it++))
-  {
-    if (item->type() == Item::FIELD_ITEM &&
-	((Item_field*) item)->field_name[0] == '*')
-    {
-      if (insert_fields(thd,tables,((Item_field*) item)->table_name,&it))
-	DBUG_RETURN(-1); /* purecov: inspected */
-    }
-    else
-    {
-      if (item->fix_fields(thd,tables))
-	DBUG_RETURN(-1); /* purecov: inspected */
-      if (item->with_sum_func && item->type() != Item::SUM_FUNC_ITEM)
-	item->split_sum_func(*sum_func_list);
-      thd->used_tables|=item->used_tables();
-    }
+    DBUG_RETURN(1);
   }
-  DBUG_RETURN(test(thd->fatal_error));
+  DBUG_RETURN(0);
 }
 
 
-static key_map get_key_map_from_key_list(THD *thd, TABLE *table,
+static key_map get_key_map_from_key_list(TABLE *table, 
 					 List<String> *index_list)
 {
   key_map map=0;

sql/sql_insert.cc

@@ -78,7 +78,7 @@ check_insert_fields(THD *thd,TABLE *table,List<Item> &fields,
     table_list.grant=table->grant;
 
     thd->dupp_field=0;
-    if (setup_fields(thd,&table_list,fields,1,0))
+    if (setup_tables(&table_list) || setup_fields(thd,&table_list,fields,1,0))
       return -1;
     if (thd->dupp_field)
     {
@@ -151,7 +151,7 @@ int mysql_insert(THD *thd,TABLE_LIST *table_list, List<Item> &fields,
   save_time_stamp=table->time_stamp;
   values= its++;
   if (check_insert_fields(thd,table,fields,*values,1) ||
-      setup_fields(thd,table_list,*values,0,0))
+      setup_tables(table_list) || setup_fields(thd,table_list,*values,0,0))
   {
     table->time_stamp=save_time_stamp;
     goto abort;
@@ -168,7 +168,7 @@ int mysql_insert(THD *thd,TABLE_LIST *table_list, List<Item> &fields,
       table->time_stamp=save_time_stamp;
       goto abort;
     }
-    if (setup_fields(thd,table_list,*values,0,0))
+    if (setup_tables(table_list) || setup_fields(thd,table_list,*values,0,0))
     {
       table->time_stamp=save_time_stamp;
       goto abort;

sql/sql_load.cc

@@ -91,7 +91,7 @@ int mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
   else
   {						// Part field list
     thd->dupp_field=0;
-    if (setup_fields(thd,table_list,fields,1,0) < 0)
+    if (setup_tables(table_list) || setup_fields(thd,table_list,fields,1,0))
       DBUG_RETURN(-1);
     if (thd->dupp_field)
     {

sql/sql_parse.cc

@@ -455,7 +455,8 @@ check_connections(THD *thd)
     db=strend(passwd)+1;
   if (thd->client_capabilities & CLIENT_INTERACTIVE)
     thd->inactive_timeout=net_interactive_timeout;
-  if (thd->client_capabilities & CLIENT_TRANSACTIONS)
+  if ((thd->client_capabilities & CLIENT_TRANSACTIONS) &&
+      opt_using_transactions)
     thd->net.return_status= &thd->server_status;
   net->timeout=net_read_timeout;
   if (check_user(thd,COM_CONNECT, user, passwd, db, 1))

sql/sql_select.cc

@@ -174,7 +174,8 @@ mysql_select(THD *thd,TABLE_LIST *tables,List<Item> &fields,COND *conds,
   thd->proc_info="init";
   thd->used_tables=0;				// Updated by setup_fields
 
-  if (setup_fields(thd,tables,fields,1,&all_fields) ||
+  if (setup_tables(tables) ||
+      setup_fields(thd,tables,fields,1,&all_fields) ||
       setup_conds(thd,tables,&conds) ||
       setup_order(thd,tables,fields,all_fields,order) ||
       setup_group(thd,tables,fields,all_fields,group,&hidden_group_fields) ||

sql/sql_update.cc

@@ -70,7 +70,7 @@ int mysql_update(THD *thd,TABLE_LIST *table_list,List<Item> &fields,
   table->quick_keys=0;
   want_privilege=table->grant.want_privilege;
   table->grant.want_privilege=(SELECT_ACL & ~table->grant.privilege);
-  if (setup_conds(thd,table_list,&conds))
+  if (setup_tables(table_list) || setup_conds(thd,table_list,&conds))
     DBUG_RETURN(-1);				/* purecov: inspected */
   old_used_keys=table->used_keys;		// Keys used in WHERE
 

sql/sql_yacc.yy

@@ -2785,7 +2785,7 @@ set_isolation:
 	  default_tx_isolation= $2;
         }
 	| SESSION_SYM tx_isolation
-	{ current_thd->session_tx_isolation= $2; }
+	{ current_thd->session_tx_isolation= Lex->tx_isolation= $2; }
 	| tx_isolation
 	{ Lex->tx_isolation= $1; }