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lot's of fixes with test cases

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mysql-test/r/create.result:
  A test case for foreign key bug that is resolved
mysql-test/r/select_found.result:
  test case for new select ... limit 0 behaviour
mysql-test/t/create.test:
  test case for foreign key bug that is fixed
mysql-test/t/select_found.test:
  test case for new behaviour of SELECT ... LIMIT 0
sql/sql_select.cc:
  SELECT ... LIMIT 0
sql/sql_union.cc:
  replacing my dirty hack with Sanja's "proper" fix
This commit is contained in:
unknown
2002-11-18 18:28:51 +02:00
parent 4e864685b3
commit 8e2346e884
6 changed files with 13 additions and 7 deletions
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7
sql/sql_select.cc
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@ -324,6 +324,7 @@ JOIN::prepare(TABLE_LIST *tables_init,
this->group= group_list != 0;
row_limit= ((select_distinct || order || group_list) ? HA_POS_ERROR :
unit->select_limit_cnt);
do_send_rows = (row_limit) ? 1 : 0;
this->unit= unit;
#ifdef RESTRICTED_GROUP
@ -664,7 +665,7 @@ JOIN::exec()
result->send_fields(fields_list,1);
if (!having || having->val_int())
{
if (do_send_rows && unit->select_limit_cnt && result->send_data(fields_list))
if (do_send_rows && result->send_data(fields_list))
error= 1;
else
{
@ -2611,8 +2612,8 @@ make_simple_join(JOIN *join,TABLE *tmp_table)
join->sum_funcs=0;
join->send_records=(ha_rows) 0;
join->group=0;
join->do_send_rows = 1;
join->row_limit=join->unit->select_limit_cnt;
join->do_send_rows = (join->row_limit) ? 1 : 0;
join_tab->cache.buff=0; /* No cacheing */
join_tab->table=tmp_table;
@ -5184,7 +5185,7 @@ end_send(JOIN *join, JOIN_TAB *join_tab __attribute__((unused)),
error=0;
if (join->procedure)
error=join->procedure->send_row(*join->fields);
else if (join->do_send_rows && join->unit->select_limit_cnt)
else if (join->do_send_rows)
error=join->result->send_data(*join->fields);
if (error)
DBUG_RETURN(-1); /* purecov: inspected */