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Merge from 5.0 trunk.

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This commit is contained in:
Chad MILLER
2008-07-14 16:16:37 -04:00
parent c94a46240a 443698a56d
commit dae4c823e9
415 changed files with 25785 additions and 18092 deletions
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54
sql/sql_select.cc
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@ -568,37 +568,13 @@ JOIN::prepare(Item ***rref_pointer_array,
/*
Check if there are references to un-aggregated columns when computing
aggregate functions with implicit grouping (there is no GROUP BY).
TODO: Add check of calculation of GROUP functions and fields:
SELECT COUNT(*)+table.col1 from table1;
*/
if (thd->variables.sql_mode & MODE_ONLY_FULL_GROUP_BY)
if (thd->variables.sql_mode & MODE_ONLY_FULL_GROUP_BY && !group_list &&
select_lex->full_group_by_flag == (NON_AGG_FIELD_USED | SUM_FUNC_USED))
{
if (!group_list)
{
uint flag=0;
List_iterator_fast<Item> it(fields_list);
Item *item;
while ((item= it++))
{
if (item->with_sum_func)
flag|=1;
else if (!(flag & 2) && !item->const_during_execution())
flag|=2;
}
if (having)
{
if (having->with_sum_func)
flag |= 1;
else if (!having->const_during_execution())
flag |= 2;
}
if (flag == 3)
{
my_message(ER_MIX_OF_GROUP_FUNC_AND_FIELDS,
ER(ER_MIX_OF_GROUP_FUNC_AND_FIELDS), MYF(0));
DBUG_RETURN(-1);
}
}
my_message(ER_MIX_OF_GROUP_FUNC_AND_FIELDS,
ER(ER_MIX_OF_GROUP_FUNC_AND_FIELDS), MYF(0));
DBUG_RETURN(-1);
}
{
/* Caclulate the number of groups */
@ -857,6 +833,7 @@ JOIN::optimize()
"Impossible HAVING" : "Impossible WHERE"));
zero_result_cause= having_value == Item::COND_FALSE ?
"Impossible HAVING" : "Impossible WHERE";
tables= 0;
error= 0;
DBUG_RETURN(0);
}
@ -2138,11 +2115,12 @@ JOIN::exec()
/*
With EXPLAIN EXTENDED we have to restore original ref_array
for a derived table which is always materialized.
Otherwise we would not be able to print the query correctly.
We also need to do this when we have temp table(s).
Otherwise we would not be able to print the query correctly.
*/
if (items0 &&
(thd->lex->describe & DESCRIBE_EXTENDED) &&
select_lex->linkage == DERIVED_TABLE_TYPE)
if (items0 && (thd->lex->describe & DESCRIBE_EXTENDED) &&
(select_lex->linkage == DERIVED_TABLE_TYPE ||
exec_tmp_table1 || exec_tmp_table2))
set_items_ref_array(items0);
DBUG_VOID_RETURN;
@ -14482,7 +14460,7 @@ change_to_use_tmp_fields(THD *thd, Item **ref_pointer_array,
ifield->db_name= iref->db_name;
}
#ifndef DBUG_OFF
if (_db_on_ && !item_field->name)
if (!item_field->name)
{
char buff[256];
String str(buff,sizeof(buff),&my_charset_bin);
@ -15818,6 +15796,14 @@ void st_select_lex::print(THD *thd, String *str)
/* go through join tree */
print_join(thd, str, &top_join_list);
}
else if (where)
{
/*
"SELECT 1 FROM DUAL WHERE 2" should not be printed as
"SELECT 1 WHERE 2": the 1st syntax is valid, but the 2nd is not.
*/
str->append(STRING_WITH_LEN(" from DUAL "));
}
// Where
Item *cur_where= where;