Fix UNION

New faster list iterators
Change list code to be simpler and faster
Optimize count(distinct)
New error messages for UNION
Make create_tmp_table more general to be usable by UNION


Docs/manual.texi:
  Changelog
include/mysqld_error.h:
  Add new error messages needed for UNION
mysql-test/r/union.result:
  New tests for UNION
mysql-test/t/analyse.test:
  Add missing drop table
mysql-test/t/union.test:
  new tests for UNION
sql/Makefile.am:
  Change name of sql_unions.cc to sql_union.cc
sql/item.cc:
  Use List_iterator_fast
sql/item_cmpfunc.cc:
  Use List_iterator_fast
sql/item_func.cc:
  Use List_iterator_fast
sql/item_sum.cc:
  Use List_iterator_fast
  Optimize count(distinct)
  Cleanup of indentation and comments
sql/item_sum.h:
  Optimize count(distinct)
sql/key.cc:
  Use List_iterator_fast
sql/mysql_priv.h:
  Add new option bits
sql/opt_sum.cc:
  Use List_iterator_fast
sql/share/Makefile.am:
  Add 'fix_errors' label
sql/share/czech/errmsg.txt:
  Add new error messages needed for UNION
sql/share/danish/errmsg.txt:
  Add new error messages needed for UNION
sql/share/dutch/errmsg.txt:
  Add new error messages needed for UNION
sql/share/english/errmsg.txt:
  Add new error messages needed for UNION
sql/share/estonian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/french/errmsg.txt:
  Add new error messages needed for UNION
sql/share/german/errmsg.txt:
  Add new error messages needed for UNION
sql/share/greek/errmsg.txt:
  Add new error messages needed for UNION
sql/share/hungarian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/italian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/japanese/errmsg.txt:
  Add new error messages needed for UNION
sql/share/korean/errmsg.txt:
  Add new error messages needed for UNION
sql/share/norwegian-ny/errmsg.txt:
  Add new error messages needed for UNION
sql/share/norwegian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/polish/errmsg.txt:
  Add new error messages needed for UNION
sql/share/portuguese/errmsg.txt:
  Add new error messages needed for UNION
sql/share/romanian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/russian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/slovak/errmsg.txt:
  Add new error messages needed for UNION
sql/share/spanish/errmsg.txt:
  Add new error messages needed for UNION
sql/share/swedish/errmsg.txt:
  Add new error messages needed for UNION
sql/sql_analyse.cc:
  Use List_iterator_fast
sql/sql_base.cc:
  Use List_iterator_fast
  Add new argument to setup_fields
sql/sql_class.cc:
  Use List_iterator_fast
sql/sql_class.h:
  Create new class for UNION
sql/sql_handler.cc:
  Use List_iterator_fast
sql/sql_insert.cc:
  Use List_iterator_fast
sql/sql_lex.h:
  Cleanup
sql/sql_list.cc:
  Faster iteration of lists
sql/sql_list.h:
  Faster iterations of lists
sql/sql_load.cc:
  Use List_iterator_fast
sql/sql_parse.cc:
  Fix UNION code
sql/sql_select.cc:
  Use List_iterator_fast
  Make create_tmp_table more general to be usable by UNION
sql/sql_select.h:
  Changes to speed up copy_fields()
sql/sql_show.cc:
  Use List_iterator_fast
sql/sql_table.cc:
  Use List_iterator_fast
sql/sql_union.cc:
  Fix UNION code
sql/sql_update.cc:
  Use List_iterator_fast
sql/sql_yacc.yy:
  Fix UNION code

1 files changed, 4 insertions, 4 deletions

diff --git a/sql/sql_show.cc b/sql/sql_show.cc
index 34e8985007e..2bd6e383eac 100644
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@ -72,7 +72,7 @@ mysqld_show_dbs(THD *thd,const char *wild)
     DBUG_RETURN(1);
   if (mysql_find_files(thd,&files,NullS,mysql_data_home,wild,1))
     DBUG_RETURN(1);
-  List_iterator<char> it(files);
+  List_iterator_fast<char> it(files);
   while ((file_name=it++))
   {
     if (!opt_safe_show_db || thd->master_access ||
@@ -154,7 +154,7 @@ int mysqld_show_tables(THD *thd,const char *db,const char *wild)
     DBUG_RETURN(1);
   if (mysql_find_files(thd,&files,db,path,wild,0))
     DBUG_RETURN(-1);
-  List_iterator<char> it(files);
+  List_iterator_fast<char> it(files);
   while ((file_name=it++))
   {
     thd->packet.length(0);
@@ -284,7 +284,7 @@ int mysqld_extend_show_tables(THD *thd,const char *db,const char *wild)
 
   if (mysql_find_files(thd,&files,db,path,wild,0))
     DBUG_RETURN(-1);
-  List_iterator<char> it(files);
+  List_iterator_fast<char> it(files);
   while ((file_name=it++))
   {
     TABLE_LIST table_list;
@@ -1165,6 +1165,6 @@ int mysqld_show(THD *thd, const char *wild, show_var_st *variables)
 }
 
 #ifdef __GNUC__
-template class List_iterator<char>;
+template class List_iterator_fast<char>;
 template class List<char>;
 #endif