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Simple cleanups

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monty@mysql.com
2003-12-18 14:40:19 +02:00
parent 6e58a7c49e
commit b9d8f108c1
3 changed files with 27 additions and 32 deletions
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56
sql/sql_select.cc
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@ -1771,41 +1771,37 @@ update_ref_and_keys(THD *thd, DYNAMIC_ARRAY *keyuse,JOIN_TAB *join_tab,
uint tables, COND *cond, table_map normal_tables)
{
uint and_level,i,found_eq_constant;
KEY_FIELD *key_fields, *end, *field;
if (!(key_fields=(KEY_FIELD*)
thd->alloc(sizeof(key_fields[0])*(thd->cond_count+1)*2)))
return TRUE; /* purecov: inspected */
and_level=0; field=end=key_fields;
if (my_init_dynamic_array(keyuse,sizeof(KEYUSE),20,64))
return TRUE;
if (cond)
{
KEY_FIELD *key_fields,*end;
KEY_FIELD *field;
if (!(key_fields=(KEY_FIELD*)
thd->alloc(sizeof(key_fields[0])*(thd->cond_count+1)*2)))
return TRUE; /* purecov: inspected */
and_level=0; field=end=key_fields;
if (my_init_dynamic_array(keyuse,sizeof(KEYUSE),20,64))
return TRUE;
if (cond)
{
add_key_fields(join_tab,&end,&and_level,cond,normal_tables);
for (; field != end ; field++)
{
add_key_part(keyuse,field);
/* Mark that we can optimize LEFT JOIN */
if (field->val->type() == Item::NULL_ITEM &&
!field->field->real_maybe_null())
field->field->table->reginfo.not_exists_optimize=1;
}
}
for (i=0 ; i < tables ; i++)
{
if (join_tab[i].on_expr)
{
add_key_fields(join_tab,&end,&and_level,join_tab[i].on_expr,
join_tab[i].table->map);
}
}
/* fill keyuse with found key parts */
add_key_fields(join_tab,&end,&and_level,cond,normal_tables);
for (; field != end ; field++)
{
add_key_part(keyuse,field);
/* Mark that we can optimize LEFT JOIN */
if (field->val->type() == Item::NULL_ITEM &&
!field->field->real_maybe_null())
field->field->table->reginfo.not_exists_optimize=1;
}
}
for (i=0 ; i < tables ; i++)
{
if (join_tab[i].on_expr)
{
add_key_fields(join_tab,&end,&and_level,join_tab[i].on_expr,
join_tab[i].table->map);
}
}
/* fill keyuse with found key parts */
for (; field != end ; field++)
add_key_part(keyuse,field);
if (thd->lex.select->ftfunc_list.elements)
{