Merge 4.1 -> 5.0.

BitKeeper/etc/ignore:
  auto-union
BitKeeper/etc/logging_ok:
  auto-union
VC++Files/sql/mysqld.dsp:
  Auto merged
client/Makefile.am:
  Auto merged
client/mysql.cc:
  Auto merged
client/mysqltest.c:
  Auto merged
configure.in:
  Auto merged
include/my_global.h:
  Auto merged
include/my_pthread.h:
  Auto merged
include/my_sys.h:
  Auto merged
include/mysql_com.h:
  Auto merged
libmysqld/Makefile.am:
  Auto merged
libmysqld/lib_sql.cc:
  Auto merged
myisam/mi_check.c:
  Auto merged
myisam/myisamchk.c:
  Auto merged
myisam/myisamdef.h:
  Auto merged
mysql-test/install_test_db.sh:
  Auto merged
mysql-test/r/insert_select.result:
  Auto merged
mysql-test/r/join_outer.result:
  Auto merged
mysql-test/r/null.result:
  Auto merged
mysql-test/r/connect.result:
  Auto merged
mysql-test/r/func_sapdb.result:
  Auto merged
mysql-test/r/mix_innodb_myisam_binlog.result:
  Auto merged
mysql-test/r/mysqldump.result:
  Auto merged
mysql-test/r/rpl_change_master.result:
  Auto merged
mysql-test/r/rpl_log.result:
  Auto merged
mysql-test/r/show_check.result:
  Auto merged
mysql-test/r/symlink.result:
  Auto merged
mysql-test/r/rpl_flush_log_loop.result:
  Auto merged
mysql-test/r/rpl_flush_tables.result:
  Auto merged
mysql-test/r/rpl_loaddata.result:
  Auto merged
mysql-test/r/rpl_loaddata_rule_m.result:
  Auto merged
mysql-test/r/rpl_loaddata_rule_s.result:
  Auto merged
mysql-test/r/rpl_max_relay_size.result:
  Auto merged
mysql-test/r/rpl_reset_slave.result:
  Auto merged
mysql-test/r/rpl_temporary.result:
  Auto merged
mysql-test/r/rpl_until.result:
  Auto merged
mysql-test/r/rpl_user_variables.result:
  Auto merged
mysql-test/r/subselect.result:
  Auto merged
mysql-test/r/union.result:
  Auto merged
mysql-test/r/variables.result:
  Auto merged
mysql-test/t/func_sapdb.test:
  Auto merged
mysql-test/t/mix_innodb_myisam_binlog.test:
  Auto merged
mysql-test/t/mysqlbinlog.test:
  Auto merged
mysql-test/t/rpl_change_master.test:
  Auto merged
mysql-test/t/rpl_log.test:
  Auto merged
mysql-test/t/variables.test:
  Auto merged
netware/BUILD/compile-linux-tools:
  Auto merged
netware/BUILD/compile-netware-END:
  Auto merged
netware/BUILD/compile-netware-all:
  Auto merged
netware/BUILD/compile-netware-standard:
  Auto merged
mysql-test/t/rpl_empty_master_crash.test:
  Auto merged
mysql-test/t/rpl_error_ignored_table.test:
  Auto merged
mysql-test/t/rpl_flush_log_loop.test:
  Auto merged
mysql-test/t/rpl_loaddata.test:
  Auto merged
mysql-test/t/rpl_loaddata_rule_m.test:
  Auto merged
mysql-test/t/rpl_loaddata_rule_s.test:
  Auto merged
mysql-test/t/rpl_max_relay_size.test:
  Auto merged
mysql-test/t/rpl_openssl.test:
  Auto merged
mysql-test/t/rpl_relayrotate-slave.opt:
  Auto merged
mysql-test/t/rpl_reset_slave.test:
  Auto merged
mysql-test/t/rpl_trunc_binlog.test:
  Auto merged
mysql-test/t/rpl_until.test:
  Auto merged
mysql-test/t/rpl_user_variables.test:
  Auto merged
mysql-test/t/subselect.test:
  Auto merged
scripts/make_binary_distribution.sh:
  Auto merged
scripts/mysql_create_system_tables.sh:
  Auto merged
scripts/mysql_fix_privilege_tables.sql:
  Auto merged
scripts/mysql_install_db.sh:
  Auto merged
sql/filesort.cc:
  Auto merged
sql/ha_berkeley.cc:
  Auto merged
sql/ha_berkeley.h:
  Auto merged
sql/ha_innodb.h:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/item_create.cc:
  Auto merged
sql/item_create.h:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_sum.cc:
  Auto merged
sql/item_sum.h:
  Auto merged
sql/item_timefunc.h:
  Auto merged
sql/lock.cc:
  Auto merged
sql/log_event.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/net_serv.cc:
  Auto merged
sql/protocol.cc:
  Auto merged
sql/protocol.h:
  Auto merged
sql/repl_failsafe.cc:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_acl.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_cache.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_db.cc:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_derived.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_list.h:
  Auto merged
sql/sql_load.cc:
  Auto merged
sql/sql_rename.cc:
  Auto merged
sql/sql_repl.cc:
  Auto merged
sql/sql_repl.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_select.h:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_test.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
sql-common/client.c:
  Auto merged
tests/client_test.c:
  Auto merged

1 files changed, 6 insertions, 5 deletions

diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index 43d9b013239..7a5a1c13f80 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -347,7 +347,7 @@ public:
   /* fake SELECT_LEX for union processing */
   st_select_lex *fake_select_lex;
 
-  uint union_option;
+  st_select_lex *union_distinct; /* pointer to the last UNION DISTINCT */
 
   void init_query();
   bool create_total_list(THD *thd, st_lex *lex, TABLE_LIST **result);
@@ -367,6 +367,8 @@ public:
   int prepare(THD *thd, select_result *result, ulong additional_options);
   int exec();
   int cleanup();
+  inline void unclean() { cleaned= 0; }
+  void reinit_exec_mechanism();
 
   bool check_updateable(char *db, char *table);
   void print(String *str);
@@ -409,6 +411,7 @@ public:
   SQL_LIST order_list;                /* ORDER clause */
   List<List_item>     expr_list;
   List<List_item>     when_list;      /* WHEN clause (expression) */
+  SQL_LIST *gorder_list;
   ha_rows select_limit, offset_limit; /* LIMIT clause parameters */
   // Arrays of pointers to top elements of all_fields list
   Item **ref_pointer_array;
@@ -553,13 +556,12 @@ typedef struct st_lex
   String *wild;
   sql_exchange *exchange;
   select_result *result;
-  Item *default_value;
+  Item *default_value, *on_update_value;
   LEX_STRING *comment, name_and_length;
   LEX_USER *grant_user;
   gptr yacc_yyss,yacc_yyvs;
   THD *thd;
   CHARSET_INFO *charset;
-  SQL_LIST *gorder_list;
 
   List<key_part_spec> col_list;
   List<key_part_spec> ref_list;
@@ -573,7 +575,7 @@ typedef struct st_lex
   List<Item>	      *insert_list,field_list,value_list;
   List<List_item>     many_values;
   List<set_var_base>  var_list;
-  List<Item>          param_list;
+  List<Item_param>    param_list;
   SQL_LIST	      proc_list, auxilliary_table_list, save_list;
   TYPELIB	      *interval;
   create_field	      *last_field;
@@ -598,7 +600,6 @@ typedef struct st_lex
   uint uint_geom_type;
   uint grant, grant_tot_col, which_columns;
   uint fk_delete_opt, fk_update_opt, fk_match_option;
-  uint param_count;
   uint slave_thd_opt;
   uint8 describe;
   bool drop_if_exists, drop_temporary, local_file;