From 360b063d3f9af7e8a7026a89611b801cca9975f3 Mon Sep 17 00:00:00 2001
From: "gkodinov/kgeorge@magare.gmz" <>
Date: Thu, 1 Mar 2007 15:28:10 +0200
Subject: [PATCH 01/14] Correctly recognize Intel Core2Duo Extreme in build.

---
 BUILD/check-cpu | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/BUILD/check-cpu b/BUILD/check-cpu
index 55f4e62327b..3fded0a680f 100755
--- a/BUILD/check-cpu
+++ b/BUILD/check-cpu
@@ -114,6 +114,10 @@ check_cpu () {
     *i386*i486*)
       cpu_arg="pentium-m";
       ;;
+    #Core 2 Duo  
+    *Intel*Core\(TM\)2*)
+      cpu_arg="nocona";
+      ;;
 
     # Intel ia64
     *Itanium*)

From 11588e5e4a64f01485fce6d5b566d47ef7d6b824 Mon Sep 17 00:00:00 2001
From: "evgen@moonbone.local" <>
Date: Fri, 2 Mar 2007 00:09:22 +0300
Subject: [PATCH 02/14] Bug#25122: Views based on a self-joined table aren't
 insertable.

When INSERT is done over a view the table being inserted into is
checked to be unique among all views tables. But if the view contains
self-joined table an error will be thrown even if all tables are used under
different aliases.

The unique_table() function now also checks tables' aliases when needed.
---
 sql/mysql_priv.h  | 3 ++-
 sql/sql_base.cc   | 9 +++++++--
 sql/sql_delete.cc | 4 ++--
 sql/sql_insert.cc | 4 ++--
 sql/sql_load.cc   | 2 +-
 sql/sql_parse.cc  | 4 ++--
 sql/sql_update.cc | 6 +++---
 7 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h
index 0948487869a..d2f4938c07c 100644
--- a/sql/mysql_priv.h
+++ b/sql/mysql_priv.h
@@ -1064,7 +1064,8 @@ TABLE_LIST *find_table_in_list(TABLE_LIST *table,
                                st_table_list *TABLE_LIST::*link,
                                const char *db_name,
                                const char *table_name);
-TABLE_LIST *unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list);
+TABLE_LIST *unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list,
+                         bool check_alias);
 TABLE **find_temporary_table(THD *thd, const char *db, const char *table_name);
 bool close_temporary_table(THD *thd, const char *db, const char *table_name);
 void close_temporary(TABLE *table, bool delete_table);
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 239c787eca5..ea937be4e70 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -796,6 +796,7 @@ TABLE_LIST *find_table_in_list(TABLE_LIST *table,
     thd                   thread handle
     table                 table which should be checked
     table_list            list of tables
+    check_alias           whether to check tables' aliases
 
   NOTE: to exclude derived tables from check we use following mechanism:
     a) during derived table processing set THD::derived_tables_processing
@@ -823,10 +824,11 @@ TABLE_LIST *find_table_in_list(TABLE_LIST *table,
     0 if table is unique
 */
 
-TABLE_LIST* unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list)
+TABLE_LIST* unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list,
+                         bool check_alias)
 {
   TABLE_LIST *res;
-  const char *d_name, *t_name;
+  const char *d_name, *t_name, *t_alias;
   DBUG_ENTER("unique_table");
   DBUG_PRINT("enter", ("table alias: %s", table->alias));
 
@@ -854,6 +856,7 @@ TABLE_LIST* unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list)
   }
   d_name= table->db;
   t_name= table->table_name;
+  t_alias= table->alias;
 
   DBUG_PRINT("info", ("real table: %s.%s", d_name, t_name));
   for (;;)
@@ -861,6 +864,8 @@ TABLE_LIST* unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list)
     if (((! (res= find_table_in_global_list(table_list, d_name, t_name))) &&
          (! (res= mysql_lock_have_duplicate(thd, table, table_list)))) ||
         ((!res->table || res->table != table->table) &&
+         (!check_alias || !(lower_case_table_names ?
+          strcasecmp(t_alias, res->alias) : strcmp(t_alias, res->alias))) &&
          res->select_lex && !res->select_lex->exclude_from_table_unique_test &&
          !res->prelocking_placeholder))
       break;
diff --git a/sql/sql_delete.cc b/sql/sql_delete.cc
index 94d753eb703..7771a10966d 100644
--- a/sql/sql_delete.cc
+++ b/sql/sql_delete.cc
@@ -370,7 +370,7 @@ bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds)
   }
   {
     TABLE_LIST *duplicate;
-    if ((duplicate= unique_table(thd, table_list, table_list->next_global)))
+    if ((duplicate= unique_table(thd, table_list, table_list->next_global, 0)))
     {
       update_non_unique_table_error(table_list, "DELETE", duplicate);
       DBUG_RETURN(TRUE);
@@ -462,7 +462,7 @@ bool mysql_multi_delete_prepare(THD *thd)
     {
       TABLE_LIST *duplicate;
       if ((duplicate= unique_table(thd, target_tbl->correspondent_table,
-                                   lex->query_tables)))
+                                   lex->query_tables, 0)))
       {
         update_non_unique_table_error(target_tbl->correspondent_table,
                                       "DELETE", duplicate);
diff --git a/sql/sql_insert.cc b/sql/sql_insert.cc
index 332c4c82ba1..55c9d2e6882 100644
--- a/sql/sql_insert.cc
+++ b/sql/sql_insert.cc
@@ -1044,7 +1044,7 @@ bool mysql_prepare_insert(THD *thd, TABLE_LIST *table_list,
   {
     Item *fake_conds= 0;
     TABLE_LIST *duplicate;
-    if ((duplicate= unique_table(thd, table_list, table_list->next_global)))
+    if ((duplicate= unique_table(thd, table_list, table_list->next_global, 1)))
     {
       update_non_unique_table_error(table_list, "INSERT", duplicate);
       DBUG_RETURN(TRUE);
@@ -2424,7 +2424,7 @@ select_insert::prepare(List<Item> &values, SELECT_LEX_UNIT *u)
     query
   */
   if (!(lex->current_select->options & OPTION_BUFFER_RESULT) &&
-      unique_table(thd, table_list, table_list->next_global))
+      unique_table(thd, table_list, table_list->next_global, 0))
   {
     /* Using same table for INSERT and SELECT */
     lex->current_select->options|= OPTION_BUFFER_RESULT;
diff --git a/sql/sql_load.cc b/sql/sql_load.cc
index 0e4057d9ae4..cb156cc51f0 100644
--- a/sql/sql_load.cc
+++ b/sql/sql_load.cc
@@ -175,7 +175,7 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
     table is marked to be 'used for insert' in which case we should never
     mark this table as as 'const table' (ie, one that has only one row).
   */
-  if (unique_table(thd, table_list, table_list->next_global))
+  if (unique_table(thd, table_list, table_list->next_global, 0))
   {
     my_error(ER_UPDATE_TABLE_USED, MYF(0), table_list->table_name);
     DBUG_RETURN(TRUE);
diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index affa6e130dc..fbe000ac78e 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -2993,7 +2993,7 @@ mysql_execute_command(THD *thd)
         if (!(create_info.options & HA_LEX_CREATE_TMP_TABLE))
         {
           TABLE_LIST *duplicate;
-          if ((duplicate= unique_table(thd, create_table, select_tables)))
+          if ((duplicate= unique_table(thd, create_table, select_tables, 0)))
           {
             update_non_unique_table_error(create_table, "CREATE", duplicate);
             res= 1;
@@ -3009,7 +3009,7 @@ mysql_execute_command(THD *thd)
                tab= tab->next_local)
           {
             TABLE_LIST *duplicate;
-            if ((duplicate= unique_table(thd, tab, select_tables)))
+            if ((duplicate= unique_table(thd, tab, select_tables, 0)))
             {
               update_non_unique_table_error(tab, "CREATE", duplicate);
               res= 1;
diff --git a/sql/sql_update.cc b/sql/sql_update.cc
index 1db77f8704c..b20e3689f64 100644
--- a/sql/sql_update.cc
+++ b/sql/sql_update.cc
@@ -636,7 +636,7 @@ bool mysql_prepare_update(THD *thd, TABLE_LIST *table_list,
   /* Check that we are not using table that we are updating in a sub select */
   {
     TABLE_LIST *duplicate;
-    if ((duplicate= unique_table(thd, table_list, table_list->next_global)))
+    if ((duplicate= unique_table(thd, table_list, table_list->next_global, 0)))
     {
       update_non_unique_table_error(table_list, "UPDATE", duplicate);
       my_error(ER_UPDATE_TABLE_USED, MYF(0), table_list->table_name);
@@ -863,7 +863,7 @@ reopen_tables:
         tl->lock_type != TL_READ_NO_INSERT)
     {
       TABLE_LIST *duplicate;
-      if ((duplicate= unique_table(thd, tl, table_list)))
+      if ((duplicate= unique_table(thd, tl, table_list, 0)))
       {
         update_non_unique_table_error(table_list, "UPDATE", duplicate);
         DBUG_RETURN(TRUE);
@@ -1082,7 +1082,7 @@ static bool safe_update_on_fly(THD *thd, JOIN_TAB *join_tab,
                                List<Item> *fields)
 {
   TABLE *table= join_tab->table;
-  if (unique_table(thd, table_ref, all_tables))
+  if (unique_table(thd, table_ref, all_tables, 0))
     return 0;
   switch (join_tab->type) {
   case JT_SYSTEM:

From 4a6efcd664791457ee2793e1d6286705bebcee86 Mon Sep 17 00:00:00 2001
From: "gkodinov/kgeorge@magare.gmz" <>
Date: Fri, 2 Mar 2007 12:14:50 +0200
Subject: [PATCH 03/14] Bug #26537: item_unhex() was not expected to return
 NULL for non-NULL arguments. This is not the case as it can return NULL for
 invalid hexidecimal strings. Fixed by setting the maybe_null flag.

---
 mysql-test/r/func_str.result | 6 ++++++
 mysql-test/t/func_str.test   | 6 ++++++
 sql/item_strfunc.h           | 6 +++++-
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/mysql-test/r/func_str.result b/mysql-test/r/func_str.result
index 052451f8c54..d09d3aeb529 100644
--- a/mysql-test/r/func_str.result
+++ b/mysql-test/r/func_str.result
@@ -1940,4 +1940,10 @@ abcxx
 select lpad('abc', cast(5 as unsigned integer), 'x');
 lpad('abc', cast(5 as unsigned integer), 'x')
 xxabc
+SELECT UNHEX('G');
+UNHEX('G')
+NULL
+SELECT UNHEX('G') IS NULL;
+UNHEX('G') IS NULL
+1
 End of 5.0 tests
diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test
index 64b59025d44..2e76dc2ca31 100644
--- a/mysql-test/t/func_str.test
+++ b/mysql-test/t/func_str.test
@@ -1008,4 +1008,10 @@ select repeat('a', cast(2 as unsigned int));
 select rpad('abc', cast(5 as unsigned integer), 'x');
 select lpad('abc', cast(5 as unsigned integer), 'x');
 
+#
+# Bug #26537: UNHEX() IS NULL comparison fails
+#
+SELECT UNHEX('G');
+SELECT UNHEX('G') IS NULL;
+
 --echo End of 5.0 tests
diff --git a/sql/item_strfunc.h b/sql/item_strfunc.h
index 60547d00a5c..778ea6e9496 100644
--- a/sql/item_strfunc.h
+++ b/sql/item_strfunc.h
@@ -605,7 +605,11 @@ class Item_func_unhex :public Item_str_func
 {
   String tmp_value;
 public:
-  Item_func_unhex(Item *a) :Item_str_func(a) {}
+  Item_func_unhex(Item *a) :Item_str_func(a) 
+  { 
+    /* there can be bad hex strings */
+    maybe_null= 1; 
+  }
   const char *func_name() const { return "unhex"; }
   String *val_str(String *);
   void fix_length_and_dec()

From 629aa8071dca494ea0c4c98d40340d2712934237 Mon Sep 17 00:00:00 2001
From: "evgen@sunlight.local" <>
Date: Fri, 2 Mar 2007 13:25:41 +0300
Subject: [PATCH 04/14] sql_base.cc:   Post fix for bug#25122.

---
 sql/sql_base.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 86cb9f77703..9945057cd1b 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -865,7 +865,8 @@ TABLE_LIST* unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list,
          (! (res= mysql_lock_have_duplicate(thd, table, table_list)))) ||
         ((!res->table || res->table != table->table) &&
          (!check_alias || !(lower_case_table_names ?
-          strcasecmp(t_alias, res->alias) : strcmp(t_alias, res->alias))) &&
+          my_strcasecmp(files_charset_info, t_alias, res->alias) :
+          strcmp(t_alias, res->alias))) &&
          res->select_lex && !res->select_lex->exclude_from_table_unique_test &&
          !res->prelocking_placeholder))
       break;

From be75593165afccdc4dc829b8de5add5f0477b1f3 Mon Sep 17 00:00:00 2001
From: "gkodinov/kgeorge@macbook.gmz" <>
Date: Fri, 2 Mar 2007 16:25:56 +0200
Subject: [PATCH 05/14] Bug #19342: Several problems here :  1. The conversion
 to double of an hex string const item  was not taking into account the
 unsigned flag.

 2. IN was not behaving in the same was way as comparisons
 when performed over an INT/DATE/DATETIME/TIMESTAMP column
 and a constant. The ordinary comparisons in that case
 convert the constant to an INTEGER value and do int
 comparisons. Fixed the IN to do the same.

 3. IN is not taking into account the unsigned flag when
 calculating <expr> IN (<int_const1>, <int_const2>, ...).
 Extended the implementation of IN to store and process
 the unsigned flag for its arguments.
---
 mysql-test/r/func_in.result |  66 ++++++++++++++++++
 mysql-test/t/func_in.test   |  58 ++++++++++++++++
 sql/item.h                  |   5 +-
 sql/item_cmpfunc.cc         | 130 ++++++++++++++++++++++++++++++++++--
 sql/item_cmpfunc.h          |  17 ++++-
 5 files changed, 268 insertions(+), 8 deletions(-)

diff --git a/mysql-test/r/func_in.result b/mysql-test/r/func_in.result
index d9ca9e80e44..36bcc6f1711 100644
--- a/mysql-test/r/func_in.result
+++ b/mysql-test/r/func_in.result
@@ -398,4 +398,70 @@ WHERE t3.a=t1.a AND t3.a=t2.a;
 3
 3
 DROP TABLE t1,t2,t3,t4;
+CREATE TABLE t1(a BIGINT UNSIGNED);
+INSERT INTO t1 VALUES (0xFFFFFFFFFFFFFFFF);
+SELECT * FROM t1 WHERE a=-1 OR a=-2 ;
+a
+SELECT * FROM t1 WHERE a IN (-1, -2);
+a
+CREATE TABLE t2 (a BIGINT UNSIGNED);
+insert into t2 values(13491727406643098568),
+(0x7fffffefffffffff),
+(0x7ffffffeffffffff),
+(0x7fffffffefffffff),
+(0x7ffffffffeffffff),
+(0x7fffffffffefffff),
+(0x7ffffffffffeffff),
+(0x7fffffffffffefff),
+(0x7ffffffffffffeff),
+(0x7fffffffffffffef),
+(0x7ffffffffffffffe),
+(0x7fffffffffffffff),
+(0x8000000000000000),
+(0x8000000000000001),
+(0x8000000000000002),
+(0x8000000000000300),
+(0x8000000000000400),
+(0x8000000000000401),
+(0x8000000000004001),
+(0x8000000000040001),
+(0x8000000000400001),
+(0x8000000004000001),
+(0x8000000040000001),
+(0x8000000400000001),
+(0x8000004000000001),
+(0x8000040000000001);
+SELECT HEX(a) FROM t2 WHERE a IN (0xBB3C3E98175D33C8, 42);
+HEX(a)
+BB3C3E98175D33C8
+SELECT HEX(a) FROM t2 WHERE a IN
+(0xBB3C3E98175D33C8,
+0x7fffffffffffffff,
+0x8000000000000000,
+0x8000000000000400,
+0x8000000000000401,
+42);
+HEX(a)
+BB3C3E98175D33C8
+7FFFFFFFFFFFFFFF
+8000000000000000
+8000000000000400
+8000000000000401
+SELECT HEX(a) FROM t2 WHERE a IN (0x7fffffffffffffff,0x8000000000000001);
+HEX(a)
+7FFFFFFFFFFFFFFF
+8000000000000001
+SELECT HEX(a) FROM t2 WHERE a IN (0x7ffffffffffffffe,0x7fffffffffffffff);
+HEX(a)
+7FFFFFFFFFFFFFFE
+7FFFFFFFFFFFFFFF
+SELECT HEX(a) FROM t2 WHERE a IN (0x7ffffffffffffffe,0x7fffffffffffffff,'abc');
+HEX(a)
+7FFFFFFFFFFFFFFE
+7FFFFFFFFFFFFFFF
+CREATE TABLE t3 (a BIGINT UNSIGNED);
+INSERT INTO t3 VALUES (9223372036854775551);
+SELECT HEX(a) FROM t3 WHERE a IN (9223372036854775807, 42);
+HEX(a)
+DROP TABLE t1,t2,t3;
 End of 5.0 tests
diff --git a/mysql-test/t/func_in.test b/mysql-test/t/func_in.test
index 54b81bed133..7ba54747d4b 100644
--- a/mysql-test/t/func_in.test
+++ b/mysql-test/t/func_in.test
@@ -298,4 +298,62 @@ SELECT STRAIGHT_JOIN
 
 DROP TABLE t1,t2,t3,t4;  
 
+#
+# BUG#19342: IN works incorrectly for BIGINT UNSIGNED values
+#
+CREATE TABLE t1(a BIGINT UNSIGNED);
+INSERT INTO t1 VALUES (0xFFFFFFFFFFFFFFFF);
+
+SELECT * FROM t1 WHERE a=-1 OR a=-2 ;
+SELECT * FROM t1 WHERE a IN (-1, -2);
+
+CREATE TABLE t2 (a BIGINT UNSIGNED);
+insert into t2 values(13491727406643098568),
+       (0x7fffffefffffffff),
+       (0x7ffffffeffffffff),
+       (0x7fffffffefffffff),
+       (0x7ffffffffeffffff),
+       (0x7fffffffffefffff),
+       (0x7ffffffffffeffff),
+       (0x7fffffffffffefff),
+       (0x7ffffffffffffeff),
+       (0x7fffffffffffffef),
+       (0x7ffffffffffffffe),
+       (0x7fffffffffffffff),
+       (0x8000000000000000),
+       (0x8000000000000001),
+       (0x8000000000000002),
+       (0x8000000000000300),
+       (0x8000000000000400),
+       (0x8000000000000401),
+       (0x8000000000004001),
+       (0x8000000000040001),
+       (0x8000000000400001),
+       (0x8000000004000001),
+       (0x8000000040000001),
+       (0x8000000400000001),
+       (0x8000004000000001),
+       (0x8000040000000001);
+
+SELECT HEX(a) FROM t2 WHERE a IN (0xBB3C3E98175D33C8, 42);
+
+SELECT HEX(a) FROM t2 WHERE a IN
+(0xBB3C3E98175D33C8,
+ 0x7fffffffffffffff,
+ 0x8000000000000000,
+ 0x8000000000000400,
+ 0x8000000000000401,
+ 42);
+
+SELECT HEX(a) FROM t2 WHERE a IN (0x7fffffffffffffff,0x8000000000000001);
+SELECT HEX(a) FROM t2 WHERE a IN (0x7ffffffffffffffe,0x7fffffffffffffff);
+SELECT HEX(a) FROM t2 WHERE a IN (0x7ffffffffffffffe,0x7fffffffffffffff,'abc');
+
+CREATE TABLE t3 (a BIGINT UNSIGNED);
+INSERT INTO t3 VALUES (9223372036854775551);
+
+SELECT HEX(a) FROM t3 WHERE a IN (9223372036854775807, 42);
+
+DROP TABLE t1,t2,t3;
+
 --echo End of 5.0 tests
diff --git a/sql/item.h b/sql/item.h
index 6c41aa09f80..f02d4f0c65d 100644
--- a/sql/item.h
+++ b/sql/item.h
@@ -1766,7 +1766,10 @@ public:
   Item_hex_string(const char *str,uint str_length);
   enum Type type() const { return VARBIN_ITEM; }
   double val_real()
-    { DBUG_ASSERT(fixed == 1); return (double) Item_hex_string::val_int(); }
+  { 
+    DBUG_ASSERT(fixed == 1); 
+    return (double) (ulonglong) Item_hex_string::val_int();
+  }
   longlong val_int();
   bool basic_const_item() const { return 1; }
   String *val_str(String*) { DBUG_ASSERT(fixed == 1); return &str_value; }
diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc
index 08f9c16384a..f239e3ea18e 100644
--- a/sql/item_cmpfunc.cc
+++ b/sql/item_cmpfunc.cc
@@ -2034,9 +2034,100 @@ void Item_func_coalesce::fix_length_and_dec()
  Classes and function for the IN operator
 ****************************************************************************/
 
-static int cmp_longlong(void *cmp_arg, longlong *a,longlong *b)
+/*
+  Determine which of the signed longlong arguments is bigger
+
+  SYNOPSIS
+    cmp_longs()
+      a_val     left argument
+      b_val     right argument
+
+  DESCRIPTION
+    This function will compare two signed longlong arguments
+    and will return -1, 0, or 1 if left argument is smaller than,
+    equal to or greater than the right argument.
+
+  RETURN VALUE
+    -1          left argument is smaller than the right argument.
+    0           left argument is equal to the right argument.
+    1           left argument is greater than the right argument.
+*/
+static inline int cmp_longs (longlong a_val, longlong b_val)
 {
-  return *a < *b ? -1 : *a == *b ? 0 : 1;
+  return a_val < b_val ? -1 : a_val == b_val ? 0 : 1;
+}
+
+
+/*
+  Determine which of the unsigned longlong arguments is bigger
+
+  SYNOPSIS
+    cmp_ulongs()
+      a_val     left argument
+      b_val     right argument
+
+  DESCRIPTION
+    This function will compare two unsigned longlong arguments
+    and will return -1, 0, or 1 if left argument is smaller than,
+    equal to or greater than the right argument.
+
+  RETURN VALUE
+    -1          left argument is smaller than the right argument.
+    0           left argument is equal to the right argument.
+    1           left argument is greater than the right argument.
+*/
+static inline int cmp_ulongs (ulonglong a_val, ulonglong b_val)
+{
+  return a_val < b_val ? -1 : a_val == b_val ? 0 : 1;
+}
+
+
+/*
+  Compare two integers in IN value list format (packed_longlong) 
+
+  SYNOPSIS
+    cmp_longlong()
+      cmp_arg   an argument passed to the calling function (qsort2)
+      a         left argument
+      b         right argument
+
+  DESCRIPTION
+    This function will compare two integer arguments in the IN value list
+    format and will return -1, 0, or 1 if left argument is smaller than,
+    equal to or greater than the right argument.
+    It's used in sorting the IN values list and finding an element in it.
+    Depending on the signedness of the arguments cmp_longlong() will
+    compare them as either signed (using cmp_longs()) or unsigned (using
+    cmp_ulongs()).
+
+  RETURN VALUE
+    -1          left argument is smaller than the right argument.
+    0           left argument is equal to the right argument.
+    1           left argument is greater than the right argument.
+*/
+int cmp_longlong(void *cmp_arg, 
+                 in_longlong::packed_longlong *a,
+                 in_longlong::packed_longlong *b)
+{
+  if (a->unsigned_flag != b->unsigned_flag)
+  { 
+    /* 
+      One of the args is unsigned and is too big to fit into the 
+      positive signed range. Report no match.
+    */  
+    if (a->unsigned_flag && ((ulonglong) a->val) > LONGLONG_MAX ||
+        b->unsigned_flag && ((ulonglong) b->val) > LONGLONG_MAX)
+      return a->unsigned_flag ? 1 : -1;
+    /*
+      Although the signedness differs both args can fit into the signed 
+      positive range. Make them signed and compare as usual.
+    */  
+    return cmp_longs (a->val, b->val);
+  }
+  if (a->unsigned_flag)
+    return cmp_ulongs ((ulonglong) a->val, (ulonglong) b->val);
+  else
+    return cmp_longs (a->val, b->val);
 }
 
 static int cmp_double(void *cmp_arg, double *a,double *b)
@@ -2161,19 +2252,23 @@ void in_row::set(uint pos, Item *item)
 }
 
 in_longlong::in_longlong(uint elements)
-  :in_vector(elements,sizeof(longlong),(qsort2_cmp) cmp_longlong, 0)
+  :in_vector(elements,sizeof(packed_longlong),(qsort2_cmp) cmp_longlong, 0)
 {}
 
 void in_longlong::set(uint pos,Item *item)
 {
-  ((longlong*) base)[pos]=item->val_int();
+  struct packed_longlong *buff= &((packed_longlong*) base)[pos];
+  
+  buff->val= item->val_int();
+  buff->unsigned_flag= item->unsigned_flag;
 }
 
 byte *in_longlong::get_value(Item *item)
 {
-  tmp= item->val_int();
+  tmp.val= item->val_int();
   if (item->null_value)
     return 0;
+  tmp.unsigned_flag= item->unsigned_flag;
   return (byte*) &tmp;
 }
 
@@ -2494,6 +2589,31 @@ void Item_func_in::fix_length_and_dec()
   */
   if (const_itm && !nulls_in_row())
   {
+    /*
+      IN must compare INT/DATE/DATETIME/TIMESTAMP columns and constants
+      as int values (the same way as equality does).
+      So we must check here if the column on the left and all the constant 
+      values on the right can be compared as integers and adjust the 
+      comparison type accordingly.
+    */  
+    if (args[0]->real_item()->type() == FIELD_ITEM &&
+        thd->lex->sql_command != SQLCOM_CREATE_VIEW &&
+        thd->lex->sql_command != SQLCOM_SHOW_CREATE &&
+        cmp_type != INT_RESULT)
+    {
+      Field *field= ((Item_field*) (args[0]->real_item()))->field;
+      if (field->can_be_compared_as_longlong())
+      {
+        bool all_converted= TRUE;
+        for (arg=args+1, arg_end=args+arg_count; arg != arg_end ; arg++)
+        {
+          if (!convert_constant_item (thd, field, &arg[0]))
+            all_converted= FALSE;
+        }
+        if (all_converted)
+          cmp_type= INT_RESULT;
+      }
+    }
     switch (cmp_type) {
     case STRING_RESULT:
       array=new in_string(arg_count-1,(qsort2_cmp) srtcmp_in, 
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index f18728c554b..80115549336 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -731,7 +731,16 @@ public:
 
 class in_longlong :public in_vector
 {
-  longlong tmp;
+  /*
+    Here we declare a temporary variable (tmp) of the same type as the
+    elements of this vector. tmp is used in finding if a given value is in 
+    the list. 
+  */
+  struct packed_longlong 
+  {
+    longlong val;
+    longlong unsigned_flag;  // Use longlong, not bool, to preserve alignment
+  } tmp;
 public:
   in_longlong(uint elements);
   void set(uint pos,Item *item);
@@ -747,8 +756,12 @@ public:
   }
   void value_to_item(uint pos, Item *item)
   {
-    ((Item_int*)item)->value= ((longlong*)base)[pos];
+    ((Item_int*) item)->value= ((packed_longlong*) base)[pos].val;
+    ((Item_int*) item)->unsigned_flag= 
+      ((packed_longlong*) base)[pos].unsigned_flag;
   }
+
+  friend int cmp_longlong(void *cmp_arg, packed_longlong *a,packed_longlong *b);
 };
 
 class in_double :public in_vector

From 76995281a3f8b39fe7e9aefaa0d80edc69970764 Mon Sep 17 00:00:00 2001
From: "gkodinov/kgeorge@macbook.gmz" <>
Date: Fri, 2 Mar 2007 19:27:32 +0200
Subject: [PATCH 06/14] fixed win32 warning

---
 sql/item_cmpfunc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index 80115549336..b612553e840 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -757,7 +757,7 @@ public:
   void value_to_item(uint pos, Item *item)
   {
     ((Item_int*) item)->value= ((packed_longlong*) base)[pos].val;
-    ((Item_int*) item)->unsigned_flag= 
+    ((Item_int*) item)->unsigned_flag= (my_bool)
       ((packed_longlong*) base)[pos].unsigned_flag;
   }
 

From 6274ee84b31a364bd7d0c5a8db9d5f49a2e45672 Mon Sep 17 00:00:00 2001
From: "gkodinov/kgeorge@magare.gmz" <>
Date: Fri, 2 Mar 2007 19:32:46 +0200
Subject: [PATCH 07/14] fixed win32 warnings

---
 sql/item_cmpfunc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index b0d85ba92a1..e50e744668a 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -760,7 +760,7 @@ public:
   void value_to_item(uint pos, Item *item)
   {
     ((Item_int*) item)->value= ((packed_longlong*) base)[pos].val;
-    ((Item_int*) item)->unsigned_flag= 
+    ((Item_int*) item)->unsigned_flag= (my_bool)
       ((packed_longlong*) base)[pos].unsigned_flag;
   }
 

From 629c12316dbf363b2bc8f63e567cb8131896bba5 Mon Sep 17 00:00:00 2001
From: "evgen@sunlight.local" <>
Date: Sun, 4 Mar 2007 00:47:42 +0300
Subject: [PATCH 08/14] Bug#25126: Wrongly resolved field leads to a crash.

When the ORDER BY clause gets fixed it's allowed to search in the current
item_list in order to find aliased fields and expressions. This is ok for a
SELECT but wrong for an UPDATE statement. If the ORDER BY clause will
contain a non-existing field which is mentioned in the UPDATE set list
then the server will crash due to using of non-existing (0x0) field.

When an Item_field is getting fixed it's allowed to search item list for
aliased expressions and fields only for selects.
---
 mysql-test/r/update.result |  4 ++++
 mysql-test/t/update.test   |  8 ++++++++
 sql/sql_base.cc            | 31 ++++++++++++++++++++++++++++++-
 sql/sql_select.cc          |  7 ++-----
 4 files changed, 44 insertions(+), 6 deletions(-)

diff --git a/mysql-test/r/update.result b/mysql-test/r/update.result
index 0f86a959250..186e0955e61 100644
--- a/mysql-test/r/update.result
+++ b/mysql-test/r/update.result
@@ -377,3 +377,7 @@ create table t1(f1 int, `*f2` int);
 insert into t1 values (1,1);
 update t1 set `*f2`=1;
 drop table t1;
+create table t1(f1 int);
+update t1 set f2=1 order by f2;
+ERROR 42S22: Unknown column 'f2' in 'order clause'
+drop table t1;
diff --git a/mysql-test/t/update.test b/mysql-test/t/update.test
index c69c56f0331..e5287eacbc8 100644
--- a/mysql-test/t/update.test
+++ b/mysql-test/t/update.test
@@ -306,4 +306,12 @@ create table t1(f1 int, `*f2` int);
 insert into t1 values (1,1);
 update t1 set `*f2`=1;
 drop table t1;
+
+#
+# Bug#25126: Wrongly resolved field leads to a crash
+#
+create table t1(f1 int);
+--error 1054
+update t1 set f2=1 order by f2;
+drop table t1;
 # End of 4.1 tests
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 05ecfe9b484..2f7661182a6 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -2518,11 +2518,14 @@ int setup_fields(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
 {
   reg2 Item *item;
   List_iterator<Item> it(fields);
+  bool save_is_item_list_lookup;
   DBUG_ENTER("setup_fields");
 
   thd->set_query_id=set_query_id;
   thd->allow_sum_func= allow_sum_func;
   thd->where="field list";
+  save_is_item_list_lookup= thd->lex->current_select->is_item_list_lookup;
+  thd->lex->current_select->is_item_list_lookup= 0;
 
   /*
     To prevent fail on forward lookup we fill it with zerows,
@@ -2543,7 +2546,10 @@ int setup_fields(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
   {
     if (!item->fixed && item->fix_fields(thd, tables, it.ref()) ||
 	(item= *(it.ref()))->check_cols(1))
+    {
+      thd->lex->current_select->is_item_list_lookup= save_is_item_list_lookup;
       DBUG_RETURN(-1); /* purecov: inspected */
+    }
     if (ref)
       *(ref++)= item;
     if (item->with_sum_func && item->type() != Item::SUM_FUNC_ITEM &&
@@ -2551,6 +2557,7 @@ int setup_fields(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
       item->split_sum_func(thd, ref_pointer_array, *sum_func_list);
     thd->used_tables|=item->used_tables();
   }
+  thd->lex->current_select->is_item_list_lookup= save_is_item_list_lookup;
   DBUG_RETURN(test(thd->net.report_error));
 }
 
@@ -2747,6 +2754,8 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
 {
   table_map not_null_tables= 0;
   Item_arena *arena= 0, backup;
+  bool save_is_item_list_lookup= thd->lex->current_select->is_item_list_lookup;
+  thd->lex->current_select->is_item_list_lookup= 0;
   DBUG_ENTER("setup_conds");
 
   thd->set_query_id=1;
@@ -2756,7 +2765,10 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
     thd->where="where clause";
     if (!(*conds)->fixed && (*conds)->fix_fields(thd, tables, conds) ||
 	(*conds)->check_cols(1))
+    {
+      thd->lex->current_select->is_item_list_lookup= save_is_item_list_lookup;
       DBUG_RETURN(1);
+    }
     not_null_tables= (*conds)->not_null_tables();
   }
 
@@ -2772,7 +2784,10 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
       if (!table->on_expr->fixed &&
 	  table->on_expr->fix_fields(thd, tables, &table->on_expr) ||
 	  table->on_expr->check_cols(1))
+      {
+        thd->lex->current_select->is_item_list_lookup= save_is_item_list_lookup;
 	DBUG_RETURN(1);
+      }
       thd->lex->current_select->cond_count++;
 
       /*
@@ -2794,7 +2809,11 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
         }
 	if ((*conds) && !(*conds)->fixed &&
 	    (*conds)->fix_fields(thd, tables, conds))
+        {
+          thd->lex->current_select->is_item_list_lookup=
+            save_is_item_list_lookup;
 	  DBUG_RETURN(1);
+        }
       }
     }
     if (table->natural_join)
@@ -2846,7 +2865,11 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
           {
             if (!(*conds)->fixed && 
                 (*conds)->fix_fields(thd, tables, conds))
+            {
+              thd->lex->current_select->is_item_list_lookup=
+                save_is_item_list_lookup;
               DBUG_RETURN(1);
+            }
           }
         }
         else
@@ -2859,7 +2882,11 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
           {
             if (!table->on_expr->fixed && 
                 table->on_expr->fix_fields(thd, tables, &table->on_expr))
-             DBUG_RETURN(1);
+            {
+              thd->lex->current_select->is_item_list_lookup=
+                save_is_item_list_lookup;
+              DBUG_RETURN(1);
+            }
           }
         }
       }
@@ -2881,9 +2908,11 @@ int setup_conds(THD *thd,TABLE_LIST *tables,COND **conds)
     */
     thd->lex->current_select->where= *conds;
   }
+  thd->lex->current_select->is_item_list_lookup= save_is_item_list_lookup;
   DBUG_RETURN(test(thd->net.report_error));
 
 err:
+  thd->lex->current_select->is_item_list_lookup= save_is_item_list_lookup;
   if (arena)
     thd->restore_backup_item_arena(arena, &backup);
   DBUG_RETURN(1);
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 9eb9d2640e9..af3ad782ee3 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -265,6 +265,7 @@ JOIN::prepare(Item ***rref_pointer_array,
   select_lex->join= this;
   union_part= (unit_arg->first_select()->next_select() != 0);
 
+  thd->lex->current_select->is_item_list_lookup= 1;
   /* Check that all tables, fields, conds and order are ok */
 
   if (setup_tables(tables_list) ||
@@ -8702,16 +8703,12 @@ find_order_in_list(THD *thd, Item **ref_pointer_array,
 
     'it' reassigned in if condition because fix_field can change it.
   */
-  thd->lex->current_select->is_item_list_lookup= 1;
   if (!it->fixed &&
       (it->fix_fields(thd, tables, order->item) ||
        (it= *order->item)->check_cols(1) ||
        thd->is_fatal_error))
-  {
-    thd->lex->current_select->is_item_list_lookup= 0;
     return 1;					// Wrong field 
-  }
-  thd->lex->current_select->is_item_list_lookup= 0;
+
   uint el= all_fields.elements;
   all_fields.push_front(it);		        // Add new field to field list
   ref_pointer_array[el]= it;

From 08efa4e0ea99255dd9136b19222feff1165605ff Mon Sep 17 00:00:00 2001
From: "igor@olga.mysql.com" <>
Date: Sun, 4 Mar 2007 19:54:35 -0800
Subject: [PATCH 09/14] Fixed bug #26560. The flag alias_name_used was not set
 on for the outer references in subqueries. It resulted in replacement of any
 outer reference resolved against an alias for a full field name when the frm
 representation of a view with a subquery was generated. If the subquery and
 the outer query referenced the same table in their from lists this
 replacement effectively changed the meaning of the view and led to wrong
 results for selects from this view.

Modified several functions to ensure setting the right value of
the alias_name_used flag for outer references resolved against
aliases.
---
 mysql-test/r/view.result |  37 ++++++++++++
 mysql-test/t/view.test   |  40 +++++++++++++
 sql/item.cc              |  26 ++++++---
 sql/item.h               |  10 +++-
 sql/mysql_priv.h         |  22 ++++++-
 sql/sql_base.cc          | 121 ++++++++++++++++++++++-----------------
 sql/sql_select.cc        |   8 +--
 7 files changed, 195 insertions(+), 69 deletions(-)

diff --git a/mysql-test/r/view.result b/mysql-test/r/view.result
index 50b41e1352f..cfa4f7cbba5 100644
--- a/mysql-test/r/view.result
+++ b/mysql-test/r/view.result
@@ -3135,4 +3135,41 @@ code	COUNT(DISTINCT country)
 100	2
 DROP VIEW v1;
 DROP TABLE t1;
+CREATE TABLE t1 (
+lid int NOT NULL PRIMARY KEY,
+name char(10) NOT NULL
+);
+INSERT INTO t1 (lid, name) VALUES
+(1, 'YES'), (2, 'NO');
+CREATE TABLE t2 (
+id int NOT NULL PRIMARY KEY, 
+gid int NOT NULL,
+lid int NOT NULL,
+dt date
+);
+INSERT INTO t2 (id, gid, lid, dt) VALUES
+(1, 1, 1, '2007-01-01'),(2, 1, 2, '2007-01-02'),
+(3, 2, 2, '2007-02-01'),(4, 2, 1, '2007-02-02');
+SELECT DISTINCT t2.gid AS lgid,
+(SELECT t1.name FROM t1, t2
+WHERE t1.lid  = t2.lid AND t2.gid = lgid
+ORDER BY t2.dt DESC LIMIT 1
+) as clid
+FROM t2;
+lgid	clid
+1	NO
+2	YES
+CREATE VIEW v1 AS
+SELECT DISTINCT t2.gid AS lgid,
+(SELECT t1.name FROM t1, t2
+WHERE t1.lid  = t2.lid AND t2.gid = lgid
+ORDER BY t2.dt DESC LIMIT 1
+) as clid
+FROM t2;
+SELECT * FROM v1;
+lgid	clid
+1	NO
+2	YES
+DROP VIEW v1;
+DROP table t1,t2;
 End of 5.0 tests.
diff --git a/mysql-test/t/view.test b/mysql-test/t/view.test
index 33e381af476..32776e85e85 100644
--- a/mysql-test/t/view.test
+++ b/mysql-test/t/view.test
@@ -3058,4 +3058,44 @@ SELECT code, COUNT(DISTINCT country) FROM v1 GROUP BY code ORDER BY MAX(id);
 DROP VIEW v1;
 DROP TABLE t1;
 
+#
+# Bug#26560: view using subquery with a reference to an outer alias 
+#
+
+CREATE TABLE t1 (
+  lid int NOT NULL PRIMARY KEY,
+  name char(10) NOT NULL
+);
+INSERT INTO t1 (lid, name) VALUES
+  (1, 'YES'), (2, 'NO');
+
+CREATE TABLE t2 (
+  id int NOT NULL PRIMARY KEY, 
+  gid int NOT NULL,
+  lid int NOT NULL,
+  dt date
+);
+INSERT INTO t2 (id, gid, lid, dt) VALUES
+ (1, 1, 1, '2007-01-01'),(2, 1, 2, '2007-01-02'),
+ (3, 2, 2, '2007-02-01'),(4, 2, 1, '2007-02-02');
+
+SELECT DISTINCT t2.gid AS lgid,
+                (SELECT t1.name FROM t1, t2
+                   WHERE t1.lid  = t2.lid AND t2.gid = lgid
+                     ORDER BY t2.dt DESC LIMIT 1
+                ) as clid
+  FROM t2;
+
+CREATE VIEW v1 AS
+SELECT DISTINCT t2.gid AS lgid,
+                (SELECT t1.name FROM t1, t2
+                   WHERE t1.lid  = t2.lid AND t2.gid = lgid
+                     ORDER BY t2.dt DESC LIMIT 1
+                ) as clid
+  FROM t2;
+SELECT * FROM v1;
+
+DROP VIEW v1;
+DROP table t1,t2;
+
 --echo End of 5.0 tests.
diff --git a/sql/item.cc b/sql/item.cc
index 257687ebaaf..c5d8a62761c 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -3320,7 +3320,7 @@ resolve_ref_in_select_and_group(THD *thd, Item_ident *ref, SELECT_LEX *select)
   ORDER *group_list= (ORDER*) select->group_list.first;
   bool ambiguous_fields= FALSE;
   uint counter;
-  bool not_used;
+  enum_resolution_type resolution;
 
   /*
     Search for a column or derived column named as 'ref' in the SELECT
@@ -3328,8 +3328,10 @@ resolve_ref_in_select_and_group(THD *thd, Item_ident *ref, SELECT_LEX *select)
   */
   if (!(select_ref= find_item_in_list(ref, *(select->get_item_list()),
                                       &counter, REPORT_EXCEPT_NOT_FOUND,
-                                      &not_used)))
+                                      &resolution)))
     return NULL; /* Some error occurred. */
+  if (resolution == RESOLVED_AGAINST_ALIAS)
+    ref->alias_name_used= TRUE;
 
   /* If this is a non-aggregated field inside HAVING, search in GROUP BY. */
   if (select->having_fix_field && !ref->with_sum_func && group_list)
@@ -3630,9 +3632,9 @@ Item_field::fix_outer_field(THD *thd, Field **from_field, Item **reference)
     *ref= NULL;                             // Don't call set_properties()
     rf= (place == IN_HAVING ?
          new Item_ref(context, ref, (char*) table_name,
-                      (char*) field_name) :
+                      (char*) field_name, alias_name_used) :
          new Item_direct_ref(context, ref, (char*) table_name,
-                             (char*) field_name));
+                             (char*) field_name, alias_name_used));
     *ref= save;
     if (!rf)
       return -1;
@@ -3750,12 +3752,14 @@ bool Item_field::fix_fields(THD *thd, Item **reference)
       if (thd->lex->current_select->is_item_list_lookup)
       {
         uint counter;
-        bool not_used;
+        enum_resolution_type resolution;
         Item** res= find_item_in_list(this, thd->lex->current_select->item_list,
                                       &counter, REPORT_EXCEPT_NOT_FOUND,
-                                      &not_used);
+                                      &resolution);
         if (!res)
           return 1;
+        if (resolution == RESOLVED_AGAINST_ALIAS)
+          alias_name_used= TRUE;
         if (res != (Item **)not_found_item)
         {
           if ((*res)->type() == Item::FIELD_ITEM)
@@ -4898,10 +4902,12 @@ Item *Item_field::update_value_transformer(byte *select_arg)
 
 Item_ref::Item_ref(Name_resolution_context *context_arg,
                    Item **item, const char *table_name_arg,
-                   const char *field_name_arg)
+                   const char *field_name_arg,
+                   bool alias_name_used_arg)
   :Item_ident(context_arg, NullS, table_name_arg, field_name_arg),
    result_field(0), ref(item)
 {
+  alias_name_used= alias_name_used_arg;
   /*
     This constructor used to create some internals references over fixed items
   */
@@ -5184,11 +5190,13 @@ void Item_ref::set_properties()
   */
   with_sum_func= (*ref)->with_sum_func;
   unsigned_flag= (*ref)->unsigned_flag;
+  fixed= 1;
+  if (alias_name_used)
+    return;
   if ((*ref)->type() == FIELD_ITEM)
     alias_name_used= ((Item_ident *) (*ref))->alias_name_used;
   else
     alias_name_used= TRUE; // it is not field, so it is was resolved by alias
-  fixed= 1;
 }
 
 
@@ -5206,7 +5214,7 @@ void Item_ref::print(String *str)
   if (ref)
   {
     if ((*ref)->type() != Item::CACHE_ITEM && ref_type() != VIEW_REF &&
-        ref_type() != OUTER_REF && name && alias_name_used)
+        !table_name && name && alias_name_used)
     {
       THD *thd= current_thd;
       append_identifier(thd, str, name, (uint) strlen(name));
diff --git a/sql/item.h b/sql/item.h
index d792f95055d..2a121523423 100644
--- a/sql/item.h
+++ b/sql/item.h
@@ -1851,7 +1851,8 @@ public:
          with Bar, and if we have a more broader set of problems like this.
   */
   Item_ref(Name_resolution_context *context_arg, Item **item,
-           const char *table_name_arg, const char *field_name_arg);
+           const char *table_name_arg, const char *field_name_arg,
+           bool alias_name_used_arg= FALSE);
 
   /* Constructor need to process subselect with temporary tables (see Item) */
   Item_ref(THD *thd, Item_ref *item)
@@ -1926,8 +1927,11 @@ class Item_direct_ref :public Item_ref
 public:
   Item_direct_ref(Name_resolution_context *context_arg, Item **item,
                   const char *table_name_arg,
-                  const char *field_name_arg)
-    :Item_ref(context_arg, item, table_name_arg, field_name_arg) {}
+                  const char *field_name_arg,
+                  bool alias_name_used_arg= FALSE)
+    :Item_ref(context_arg, item, table_name_arg,
+              field_name_arg, alias_name_used_arg)
+  {}
   /* Constructor need to process subselect with temporary tables (see Item) */
   Item_direct_ref(THD *thd, Item_direct_ref *item) : Item_ref(thd, item) {}
 
diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h
index 7c9b43f23b9..cf5e9799fae 100644
--- a/sql/mysql_priv.h
+++ b/sql/mysql_priv.h
@@ -1008,9 +1008,29 @@ SQL_SELECT *make_select(TABLE *head, table_map const_tables,
 			table_map read_tables, COND *conds,
                         bool allow_null_cond,  int *error);
 extern Item **not_found_item;
+
+/*
+  This enumeration type is used only by the function find_item_in_list
+  to return the info on how an item has been resolved against a list
+  of possibly aliased items.
+  The item can be resolved: 
+   - against an alias name of the list's element (RESOLVED_AGAINST_ALIAS)
+   - against non-aliased field name of the list  (RESOLVED_WITH_NO_ALIAS)
+   - against an aliased field name of the list   (RESOLVED_BEHIND_ALIAS)
+   - ignoring the alias name in cases when SQL requires to ignore aliases
+     (e.g. when the resolved field reference contains a table name or
+     when the resolved item is an expression)   (RESOLVED_IGNORING_ALIAS)    
+*/
+enum enum_resolution_type {
+  NOT_RESOLVED=0,
+  RESOLVED_IGNORING_ALIAS,
+  RESOLVED_BEHIND_ALIAS,
+  RESOLVED_WITH_NO_ALIAS,
+  RESOLVED_AGAINST_ALIAS
+};
 Item ** find_item_in_list(Item *item, List<Item> &items, uint *counter,
                           find_item_error_report_type report_error,
-                          bool *unaliased);
+                          enum_resolution_type *resolution);
 bool get_key_map_from_key_list(key_map *map, TABLE *table,
                                List<String> *index_list);
 bool insert_fields(THD *thd, Name_resolution_context *context,
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 9945057cd1b..0ebfd2b1044 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -3468,10 +3468,13 @@ find_field_in_tables(THD *thd, Item_ident *item,
 				return not_found_item, report other errors,
 				return 0
       IGNORE_ERRORS		Do not report errors, return 0 if error
-    unaliased                   Set to true if item is field which was found
-                                by original field name and not by its alias
-                                in item list. Set to false otherwise.
-
+    resolution                  Set to the resolution type if the item is found 
+                                (it says whether the item is resolved 
+                                 against an alias name,
+                                 or as a field name without alias,
+                                 or as a field hidden by alias,
+                                 or ignoring alias)
+                                
   RETURN VALUES
     0			Item is not found or item is not unique,
 			error message is reported
@@ -3487,7 +3490,8 @@ Item **not_found_item= (Item**) 0x1;
 
 Item **
 find_item_in_list(Item *find, List<Item> &items, uint *counter,
-                  find_item_error_report_type report_error, bool *unaliased)
+                  find_item_error_report_type report_error,
+                  enum_resolution_type *resolution)
 {
   List_iterator<Item> li(items);
   Item **found=0, **found_unaliased= 0, *item;
@@ -3501,10 +3505,9 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
   */
   bool is_ref_by_name= 0;
   uint unaliased_counter;
-
   LINT_INIT(unaliased_counter);                 // Dependent on found_unaliased
 
-  *unaliased= FALSE;
+  *resolution= NOT_RESOLVED;
 
   is_ref_by_name= (find->type() == Item::FIELD_ITEM  || 
                    find->type() == Item::REF_ITEM);
@@ -3571,63 +3574,77 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
           }
           found_unaliased= li.ref();
           unaliased_counter= i;
+          *resolution= RESOLVED_IGNORING_ALIAS;
           if (db_name)
             break;                              // Perfect match
         }
       }
-      else if (!my_strcasecmp(system_charset_info, item_field->name,
-                              field_name))
+      else
       {
-        /*
-          If table name was not given we should scan through aliases
-          (or non-aliased fields) first. We are also checking unaliased
-          name of the field in then next else-if, to be able to find
-          instantly field (hidden by alias) if no suitable alias (or
-          non-aliased field) was found.
-        */
-        if (found)
+        int fname_cmp= my_strcasecmp(system_charset_info,
+                                     item_field->field_name,
+                                     field_name);
+        if (!my_strcasecmp(system_charset_info,
+                           item_field->name,field_name))
         {
-          if ((*found)->eq(item, 0))
-            continue;                           // Same field twice
-          if (report_error != IGNORE_ERRORS)
-            my_error(ER_NON_UNIQ_ERROR, MYF(0),
-                     find->full_name(), current_thd->where);
-          return (Item**) 0;
+          /*
+            If table name was not given we should scan through aliases
+            and non-aliased fields first. We are also checking unaliased
+            name of the field in then next  else-if, to be able to find
+            instantly field (hidden by alias) if no suitable alias or
+            non-aliased field was found.
+          */
+          if (found)
+          {
+            if ((*found)->eq(item, 0))
+              continue;                           // Same field twice
+            if (report_error != IGNORE_ERRORS)
+              my_error(ER_NON_UNIQ_ERROR, MYF(0),
+                       find->full_name(), current_thd->where);
+            return (Item**) 0;
+          }
+          found= li.ref();
+          *counter= i;
+          *resolution= fname_cmp ? RESOLVED_AGAINST_ALIAS:
+	                           RESOLVED_WITH_NO_ALIAS;
         }
-        found= li.ref();
-        *counter= i;
-      }
-      else if (!my_strcasecmp(system_charset_info, item_field->field_name,
-                              field_name))
-      {
-        /*
-          We will use un-aliased field or react on such ambiguities only if
-          we won't be able to find aliased field.
-          Again if we have ambiguity with field outside of select list
-          we should prefer fields from select list.
-        */
-        if (found_unaliased)
-        {
-          if ((*found_unaliased)->eq(item, 0))
-            continue;                           // Same field twice
-          found_unaliased_non_uniq= 1;
-        }
-        else
+        else if (!fname_cmp)
         {
+          /*
+            We will use non-aliased field or react on such ambiguities only if
+            we won't be able to find aliased field.
+            Again if we have ambiguity with field outside of select list
+            we should prefer fields from select list.
+          */
+          if (found_unaliased)
+          {
+            if ((*found_unaliased)->eq(item, 0))
+              continue;                           // Same field twice
+            found_unaliased_non_uniq= 1;
+          }
           found_unaliased= li.ref();
           unaliased_counter= i;
         }
       }
     }
-    else if (!table_name && (find->eq(item,0) ||
-			     is_ref_by_name && find->name && item->name &&
-			     !my_strcasecmp(system_charset_info, 
-					    item->name,find->name)))
-    {
-      found= li.ref();
-      *counter= i;
-      break;
-    }
+    else if (!table_name)
+    { 
+      if (is_ref_by_name && find->name && item->name &&
+	  !my_strcasecmp(system_charset_info,item->name,find->name))
+      {
+        found= li.ref();
+        *counter= i;
+        *resolution= RESOLVED_AGAINST_ALIAS;
+        break;
+      }
+      else if (find->eq(item,0))
+      {
+        found= li.ref();
+        *counter= i;
+        *resolution= RESOLVED_IGNORING_ALIAS;
+        break;
+      }
+    } 
   }
   if (!found)
   {
@@ -3642,7 +3659,7 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
     {
       found= found_unaliased;
       *counter= unaliased_counter;
-      *unaliased= TRUE;
+      *resolution= RESOLVED_BEHIND_ALIAS;
     }
   }
   if (found)
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 5202f35f4de..7538d3bf599 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -13158,7 +13158,7 @@ find_order_in_list(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
   Item **select_item; /* The corresponding item from the SELECT clause. */
   Field *from_field;  /* The corresponding field from the FROM clause. */
   uint counter;
-  bool unaliased;
+  enum_resolution_type resolution;
 
   /*
     Local SP variables may be int but are expressions, not positions.
@@ -13181,7 +13181,7 @@ find_order_in_list(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
   }
   /* Lookup the current GROUP/ORDER field in the SELECT clause. */
   select_item= find_item_in_list(order_item, fields, &counter,
-                                 REPORT_EXCEPT_NOT_FOUND, &unaliased);
+                                 REPORT_EXCEPT_NOT_FOUND, &resolution);
   if (!select_item)
     return TRUE; /* The item is not unique, or some other error occured. */
 
@@ -13195,7 +13195,7 @@ find_order_in_list(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
       original field name, we should additionaly check if we have conflict
       for this name (in case if we would perform lookup in all tables).
     */
-    if (unaliased && !order_item->fixed &&
+    if (resolution == RESOLVED_BEHIND_ALIAS && !order_item->fixed &&
         order_item->fix_fields(thd, order->item))
       return TRUE;
 
@@ -13429,7 +13429,7 @@ setup_new_fields(THD *thd, List<Item> &fields,
 
   thd->set_query_id=1;				// Not really needed, but...
   uint counter;
-  bool not_used;
+  enum_resolution_type not_used;
   for (; new_field ; new_field= new_field->next)
   {
     if ((item= find_item_in_list(*new_field->item, fields, &counter,

From f5e9c10d58f747f103a7adc29e0bf647e2ea170e Mon Sep 17 00:00:00 2001
From: "gkodinov/kgeorge@macbook.gmz" <>
Date: Tue, 6 Mar 2007 18:52:00 +0200
Subject: [PATCH 10/14] Bug#19342: additional test case for code coverage

---
 mysql-test/r/func_in.result | 8 +++++++-
 mysql-test/t/func_in.test   | 6 +++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/mysql-test/r/func_in.result b/mysql-test/r/func_in.result
index 36bcc6f1711..fad9a7157e1 100644
--- a/mysql-test/r/func_in.result
+++ b/mysql-test/r/func_in.result
@@ -463,5 +463,11 @@ CREATE TABLE t3 (a BIGINT UNSIGNED);
 INSERT INTO t3 VALUES (9223372036854775551);
 SELECT HEX(a) FROM t3 WHERE a IN (9223372036854775807, 42);
 HEX(a)
-DROP TABLE t1,t2,t3;
+CREATE TABLE t4 (a DATE);
+INSERT INTO t4 VALUES ('1972-02-06'), ('1972-07-29');
+SELECT * FROM t4 WHERE a IN ('1972-02-06','19772-07-29');
+a
+Warnings:
+Warning	1292	Incorrect date value: '19772-07-29' for column 'a' at row 1
+DROP TABLE t1,t2,t3,t4;
 End of 5.0 tests
diff --git a/mysql-test/t/func_in.test b/mysql-test/t/func_in.test
index 7ba54747d4b..f9749662ec1 100644
--- a/mysql-test/t/func_in.test
+++ b/mysql-test/t/func_in.test
@@ -354,6 +354,10 @@ INSERT INTO t3 VALUES (9223372036854775551);
 
 SELECT HEX(a) FROM t3 WHERE a IN (9223372036854775807, 42);
 
-DROP TABLE t1,t2,t3;
+CREATE TABLE t4 (a DATE);
+INSERT INTO t4 VALUES ('1972-02-06'), ('1972-07-29');
+SELECT * FROM t4 WHERE a IN ('1972-02-06','19772-07-29');
+
+DROP TABLE t1,t2,t3,t4;
 
 --echo End of 5.0 tests

From 6552d3064ddbe6e3846e9fb0b8e848dcef0ae008 Mon Sep 17 00:00:00 2001
From: "evgen@moonbone.local" <>
Date: Tue, 6 Mar 2007 23:58:10 +0300
Subject: [PATCH 11/14] Bug#25376: Incomplete setup of ORDER BY clause results
 in a wrong result.

Functions over sum functions wasn't set up correctly for the ORDER BY clause
which leads to a wrong order of the result set.

The split_sum_func() function is called now for each ORDER BY item that
contains a sum function to set it up correctly.
---
 mysql-test/r/order_by.result |  8 ++++++++
 mysql-test/t/order_by.test   |  8 ++++++++
 sql/sql_select.cc            | 11 +++++++++++
 3 files changed, 27 insertions(+)

diff --git a/mysql-test/r/order_by.result b/mysql-test/r/order_by.result
index e81d46c9199..0b1edfd3e8f 100644
--- a/mysql-test/r/order_by.result
+++ b/mysql-test/r/order_by.result
@@ -926,3 +926,11 @@ NULL
 2
 3
 DROP TABLE t1,t2,t3,t4;
+create table t1 (a int, b int, c int);
+insert into t1 values (1,2,3), (9,8,3), (19,4,3), (1,4,9);
+select a,(sum(b)/sum(c)) as ratio from t1 group by a order by sum(b)/sum(c) asc;
+a	ratio
+1	0.5000
+19	1.3333
+9	2.6667
+drop table t1;
diff --git a/mysql-test/t/order_by.test b/mysql-test/t/order_by.test
index 012b38ff8b7..a3aa2c0081d 100644
--- a/mysql-test/t/order_by.test
+++ b/mysql-test/t/order_by.test
@@ -640,3 +640,11 @@ SELECT t2.b FROM t1 LEFT JOIN (t2, t3 LEFT JOIN t4 ON t3.a=t4.a)
 ON (t1.a=t2.a AND t1.b=t3.b) order by t2.b;
 
 DROP TABLE t1,t2,t3,t4;
+
+#
+# Bug#25376: Incomplete setup of ORDER BY clause results in a wrong result.
+#
+create table t1 (a int, b int, c int);
+insert into t1 values (1,2,3), (9,8,3), (19,4,3), (1,4,9);
+select a,(sum(b)/sum(c)) as ratio from t1 group by a order by sum(b)/sum(c) asc;
+drop table t1;
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 5202f35f4de..fae4a0ce4aa 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -455,6 +455,17 @@ JOIN::prepare(Item ***rref_pointer_array,
 
   select_lex->fix_prepare_information(thd, &conds, &having);
 
+  if (order)
+  {
+    ORDER *ord;
+    for (ord= order; ord; ord= ord->next)
+    {
+      Item *item= *ord->item;
+      if (item->with_sum_func && item->type() != Item::SUM_FUNC_ITEM)
+        item->split_sum_func(thd, ref_pointer_array, all_fields);
+    }
+  }
+
   if (having && having->with_sum_func)
     having->split_sum_func2(thd, ref_pointer_array, all_fields,
                             &having, TRUE);

From 7afa5f1c5af3b78ff1db21c191e36258d6f478e7 Mon Sep 17 00:00:00 2001
From: "evgen@moonbone.local" <>
Date: Wed, 7 Mar 2007 21:44:58 +0300
Subject: [PATCH 12/14] Bug#22331: Wrong WHERE in EXPLAIN EXTENDED when all
 expressions were optimized away.

During optimization stage the WHERE conditions can be changed or even
be removed at all if they know for sure to be true of false. Thus they aren't
showed in the EXPLAIN EXTENDED which prints conditions after optimization.

Now if all elements of an Item_cond were removed this Item_cond is substituted
for an Item_int with the int value of the Item_cond.
If there were conditions that were totally optimized away then values of the
saved cond_value and having_value will be printed instead.
---
 mysql-test/r/explain.result   | 29 +++++++++++++++++++++++++++++
 mysql-test/r/func_test.result |  2 +-
 mysql-test/r/subselect.result | 16 ++++++++--------
 mysql-test/t/explain.test     | 14 ++++++++++++++
 sql/sql_lex.cc                |  1 +
 sql/sql_lex.h                 |  2 ++
 sql/sql_select.cc             | 23 ++++++++++++++++++-----
 sql/sql_select.h              |  2 +-
 8 files changed, 74 insertions(+), 15 deletions(-)

diff --git a/mysql-test/r/explain.result b/mysql-test/r/explain.result
index 3bd7b2ccc15..221a8695f60 100644
--- a/mysql-test/r/explain.result
+++ b/mysql-test/r/explain.result
@@ -57,3 +57,32 @@ select 3 into @v1;
 explain select 3 into @v1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+create table t1(f1 int, f2 int);
+insert into t1 values (1,1);
+create view v1 as select * from t1 where f1=1;
+explain extended select * from v1 where f2=1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	1	
+Warnings:
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` where 1
+explain extended select * from t1 where 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+Warnings:
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` where 0
+explain extended select * from t1 where 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	1	
+Warnings:
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` where 1
+explain extended select * from t1 having 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible HAVING
+Warnings:
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` having 0
+explain extended select * from t1 having 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	1	
+Warnings:
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` having 1
+drop table t1;
diff --git a/mysql-test/r/func_test.result b/mysql-test/r/func_test.result
index 43832bdbccc..c3fbdb3b3bf 100644
--- a/mysql-test/r/func_test.result
+++ b/mysql-test/r/func_test.result
@@ -79,7 +79,7 @@ explain extended select * from t1 where 1 xor 1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1`
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where 0
 select - a from t1;
 - a
 -1
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index 06f8c019265..1f29497f662 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -421,7 +421,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	select 1 AS `1` from `test`.`t1`
+Note	1003	select 1 AS `1` from `test`.`t1` where 1
 drop table t1;
 CREATE TABLE `t1` (
 `numeropost` mediumint(8) unsigned NOT NULL auto_increment,
@@ -1180,7 +1180,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 2	DEPENDENT SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 Warnings:
-Note	1003	select <in_optimizer>(0,<exists>(select 1 AS `Not_used` from `test`.`t1` `a`)) AS `0 IN (SELECT 1 FROM t1 a)`
+Note	1003	select <in_optimizer>(0,<exists>(select 1 AS `Not_used` from `test`.`t1` `a` where 0)) AS `0 IN (SELECT 1 FROM t1 a)`
 INSERT INTO t1 (pseudo) VALUES ('test1');
 SELECT 0 IN (SELECT 1 FROM t1 a);
 0 IN (SELECT 1 FROM t1 a)
@@ -1190,7 +1190,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 2	DEPENDENT SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 Warnings:
-Note	1003	select <in_optimizer>(0,<exists>(select 1 AS `Not_used` from `test`.`t1` `a`)) AS `0 IN (SELECT 1 FROM t1 a)`
+Note	1003	select <in_optimizer>(0,<exists>(select 1 AS `Not_used` from `test`.`t1` `a` where 0)) AS `0 IN (SELECT 1 FROM t1 a)`
 drop table t1;
 CREATE TABLE `t1` (
 `i` int(11) NOT NULL default '0',
@@ -1532,7 +1532,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	0	const row not found
 Warnings:
-Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3`
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
 select * from t3 where NULL >= any (select b from t2 group by 1);
 a
 explain extended select * from t3 where NULL >= any (select b from t2 group by 1);
@@ -1540,7 +1540,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	0	const row not found
 Warnings:
-Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3`
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
 select * from t3 where NULL >= some (select b from t2);
 a
 explain extended select * from t3 where NULL >= some (select b from t2);
@@ -1548,7 +1548,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	0	const row not found
 Warnings:
-Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3`
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
 select * from t3 where NULL >= some (select b from t2 group by 1);
 a
 explain extended select * from t3 where NULL >= some (select b from t2 group by 1);
@@ -1556,7 +1556,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	0	const row not found
 Warnings:
-Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3`
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
 insert into t2 values (2,2), (2,1), (3,3), (3,1);
 select * from t3 where a > all (select max(b) from t2 group by a);
 a
@@ -1618,7 +1618,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 3	UNION	t1	system	NULL	NULL	NULL	NULL	1	
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	select `test`.`t1`.`s1` AS `s1` from `test`.`t1`
+Note	1003	select `test`.`t1`.`s1` AS `s1` from `test`.`t1` where 1
 drop table t1;
 CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
 INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874');
diff --git a/mysql-test/t/explain.test b/mysql-test/t/explain.test
index efce0cdf3b5..85bbbfea154 100644
--- a/mysql-test/t/explain.test
+++ b/mysql-test/t/explain.test
@@ -51,4 +51,18 @@ set names latin1;
 select 3 into @v1;
 explain select 3 into @v1;
 
+#
+# Bug#22331: Wrong WHERE in EXPLAIN EXTENDED when all expressions were
+#            optimized away.
+#
+create table t1(f1 int, f2 int);
+insert into t1 values (1,1);
+create view v1 as select * from t1 where f1=1;
+explain extended select * from v1 where f2=1;
+explain extended select * from t1 where 0;
+explain extended select * from t1 where 1;
+explain extended select * from t1 having 0;
+explain extended select * from t1 having 1;
+drop table t1;
+
 # End of 5.0 tests.
diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc
index ce76c35b33c..86590e10535 100644
--- a/sql/sql_lex.cc
+++ b/sql/sql_lex.cc
@@ -1192,6 +1192,7 @@ void st_select_lex::init_select()
   is_correlated= 0;
   cur_pos_in_select_list= UNDEF_POS;
   non_agg_fields.empty();
+  cond_value= having_value= Item::COND_UNDEF;
 }
 
 /*
diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index ae2b0d30a9c..4400c94e7f5 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -487,6 +487,8 @@ public:
   Item *where, *having;                         /* WHERE & HAVING clauses */
   Item *prep_where; /* saved WHERE clause for prepared statement processing */
   Item *prep_having;/* saved HAVING clause for prepared statement processing */
+  /* Saved values of the WHERE and HAVING clauses*/
+  Item::cond_result cond_value, having_value;
   /* point on lex in which it was created, used in view subquery detection */
   st_lex *parent_lex;
   enum olap_type olap;
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index e7b18201a0a..6adb26ade29 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -681,7 +681,6 @@ JOIN::optimize()
   }
 
   {
-    Item::cond_result having_value;
     having= optimize_cond(this, having, join_list, &having_value);
     if (thd->net.report_error)
     {
@@ -689,6 +688,10 @@ JOIN::optimize()
       DBUG_PRINT("error",("Error from optimize_cond"));
       DBUG_RETURN(1);
     }
+    if (select_lex->where)
+      select_lex->cond_value= cond_value;
+    if (select_lex->having)
+      select_lex->having_value= having_value;
 
     if (cond_value == Item::COND_FALSE || having_value == Item::COND_FALSE || 
         (!unit->select_limit_cnt && !(select_options & OPTION_FOUND_ROWS)))
@@ -829,6 +832,7 @@ JOIN::optimize()
     conds->update_used_tables();
     DBUG_EXECUTE("where", print_where(conds, "after substitute_best_equal"););
   }
+
   /*
     Permorm the the optimization on fields evaluation mentioned above
     for all on expressions.
@@ -7535,6 +7539,9 @@ static COND* substitute_for_best_equal_field(COND *cond,
           break;
       }
     }
+    if (!((Item_cond*)cond)->argument_list()->elements)
+      cond= new Item_int(cond->val_bool());
+
   }
   else if (cond->type() == Item::FUNC_ITEM && 
            ((Item_cond*) cond)->functype() == Item_func::MULT_EQUAL_FUNC)
@@ -15259,10 +15266,13 @@ void st_select_lex::print(THD *thd, String *str)
   Item *cur_where= where;
   if (join)
     cur_where= join->conds;
-  if (cur_where)
+  if (cur_where || cond_value != Item::COND_UNDEF)
   {
     str->append(STRING_WITH_LEN(" where "));
-    cur_where->print(str);
+    if (cur_where)
+      cur_where->print(str);
+    else
+      str->append(cond_value != Item::COND_FALSE ? "1" : "0");
   }
 
   // group by & olap
@@ -15288,10 +15298,13 @@ void st_select_lex::print(THD *thd, String *str)
   if (join)
     cur_having= join->having;
 
-  if (cur_having)
+  if (cur_having || having_value != Item::COND_UNDEF)
   {
     str->append(STRING_WITH_LEN(" having "));
-    cur_having->print(str);
+    if (cur_having)
+      cur_having->print(str);
+    else
+      str->append(having_value != Item::COND_FALSE ? "1" : "0");
   }
 
   if (order_list.elements)
diff --git a/sql/sql_select.h b/sql/sql_select.h
index a17d7fcb362..27ca633fdb5 100644
--- a/sql/sql_select.h
+++ b/sql/sql_select.h
@@ -292,7 +292,7 @@ public:
 
   bool need_tmp, hidden_group_fields;
   DYNAMIC_ARRAY keyuse;
-  Item::cond_result cond_value;
+  Item::cond_result cond_value, having_value;
   List<Item> all_fields; // to store all fields that used in query
   //Above list changed to use temporary table
   List<Item> tmp_all_fields1, tmp_all_fields2, tmp_all_fields3;

From b81b814cd180d4d1963a57201758e47b04c21bcf Mon Sep 17 00:00:00 2001
From: "evgen@moonbone.local" <>
Date: Wed, 7 Mar 2007 22:11:57 +0300
Subject: [PATCH 13/14] Bug#25373: Stored functions wasn't compared correctly
 which leads to a wrong result.

For built-in functions like sqrt() function names are hard-coded and can be
compared by pointer. But this isn't the case for a used-defined stored
functions - names there are dynamical and should be compared as strings.

Now the Item_func::eq() function employs my_strcasecmp() function to compare
used-defined stored functions names.
---
 mysql-test/r/sp.result | 13 +++++++++++++
 mysql-test/t/sp.test   | 15 +++++++++++++++
 sql/item_func.cc       |  9 +++++++--
 3 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/mysql-test/r/sp.result b/mysql-test/r/sp.result
index 8e3c057cc62..81e2db70357 100644
--- a/mysql-test/r/sp.result
+++ b/mysql-test/r/sp.result
@@ -5741,4 +5741,17 @@ END|
 CALL bug24117()|
 DROP PROCEDURE bug24117|
 DROP TABLE t3|
+DROP FUNCTION IF EXISTS bug25373|
+CREATE FUNCTION bug25373(p1 INTEGER) RETURNS INTEGER
+LANGUAGE SQL DETERMINISTIC
+RETURN p1;|
+CREATE TABLE t3 (f1 INT, f2 FLOAT)|
+INSERT INTO t3 VALUES (1, 3.4), (1, 2), (1, 0.9), (2, 8), (2, 7)|
+SELECT SUM(f2), bug25373(f1) FROM t3 GROUP BY bug25373(f1) WITH ROLLUP|
+SUM(f2)	bug25373(f1)
+6.3000000715256	1
+15	2
+21.300000071526	NULL
+DROP FUNCTION bug25373|
+DROP TABLE t3|
 drop table t1,t2;
diff --git a/mysql-test/t/sp.test b/mysql-test/t/sp.test
index cfa4937e050..5da29454b08 100644
--- a/mysql-test/t/sp.test
+++ b/mysql-test/t/sp.test
@@ -6714,6 +6714,21 @@ CALL bug24117()|
 DROP PROCEDURE bug24117|
 DROP TABLE t3|
 
+#
+# Bug#25373: Stored functions wasn't compared correctly which leads to a wrong
+#            result.
+#
+--disable_warnings
+DROP FUNCTION IF EXISTS bug25373|
+--disable_warnings
+CREATE FUNCTION bug25373(p1 INTEGER) RETURNS INTEGER
+LANGUAGE SQL DETERMINISTIC
+RETURN p1;|
+CREATE TABLE t3 (f1 INT, f2 FLOAT)|
+INSERT INTO t3 VALUES (1, 3.4), (1, 2), (1, 0.9), (2, 8), (2, 7)|
+SELECT SUM(f2), bug25373(f1) FROM t3 GROUP BY bug25373(f1) WITH ROLLUP|
+DROP FUNCTION bug25373|
+DROP TABLE t3|
 #
 # NOTE: The delimiter is `|`, and not `;`. It is changed to `;`
 #       at the end of the file!
diff --git a/sql/item_func.cc b/sql/item_func.cc
index 638d8903dcb..c8c0671ae1d 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -409,8 +409,13 @@ bool Item_func::eq(const Item *item, bool binary_cmp) const
   if (item->type() != FUNC_ITEM)
     return 0;
   Item_func *item_func=(Item_func*) item;
-  if (arg_count != item_func->arg_count ||
-      func_name() != item_func->func_name())
+  Item_func::Functype func_type;
+  if ((func_type= functype()) != item_func->functype() ||
+      arg_count != item_func->arg_count ||
+      (func_type != Item_func::FUNC_SP &&
+       func_name() != item_func->func_name()) ||
+      (func_type == Item_func::FUNC_SP &&
+       my_strcasecmp(system_charset_info, func_name(), item_func->func_name())))
     return 0;
   for (uint i=0; i < arg_count ; i++)
     if (!args[i]->eq(item_func->args[i], binary_cmp))

From 999c1cdcc1a6c82b69ea75d6661f75ed55f405f1 Mon Sep 17 00:00:00 2001
From: "evgen@moonbone.local" <>
Date: Thu, 8 Mar 2007 00:27:42 +0300
Subject: [PATCH 14/14] sql_select.cc:   Postfix for bug#22331 for windows
 platform. explain.test, explain.result:   Cleanup after bugfix#22331.

---
 mysql-test/r/explain.result | 1 +
 mysql-test/t/explain.test   | 1 +
 sql/sql_select.cc           | 2 +-
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/mysql-test/r/explain.result b/mysql-test/r/explain.result
index 221a8695f60..e0afaaef201 100644
--- a/mysql-test/r/explain.result
+++ b/mysql-test/r/explain.result
@@ -85,4 +85,5 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	1	
 Warnings:
 Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` having 1
+drop view v1;
 drop table t1;
diff --git a/mysql-test/t/explain.test b/mysql-test/t/explain.test
index 85bbbfea154..04cf37f457a 100644
--- a/mysql-test/t/explain.test
+++ b/mysql-test/t/explain.test
@@ -63,6 +63,7 @@ explain extended select * from t1 where 0;
 explain extended select * from t1 where 1;
 explain extended select * from t1 having 0;
 explain extended select * from t1 having 1;
+drop view v1;
 drop table t1;
 
 # End of 5.0 tests.
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index fc67ffac2fb..06352d48154 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -7622,7 +7622,7 @@ static COND* substitute_for_best_equal_field(COND *cond,
       }
     }
     if (!((Item_cond*)cond)->argument_list()->elements)
-      cond= new Item_int(cond->val_bool());
+      cond= new Item_int((int32)cond->val_bool());
 
   }
   else if (cond->type() == Item::FUNC_ITEM &&