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return table list of fake_select in empty state to prevent using TABLE_LIST allocated on stack in next execution of PS (Bug #3577)

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sql/sql_union.cc:
  return table list of fake_select in empty state to prevent using TABLE_LIST allocated on stack in next execution of PS
tests/client_test.c:
  test of UNIONS with PS
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unknown
2004-05-03 13:58:01 +03:00
parent 73ff0958c0
commit bcbaefcf97
2 changed files with 41 additions and 0 deletions
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5
sql/sql_union.cc
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@@ -401,7 +401,10 @@ int st_select_lex_unit::exec()
*/
if (!(fake_select_lex->join= new JOIN(thd, item_list, thd->options,
result)))
{
fake_select_lex->table_list.empty();
DBUG_RETURN(-1);
}
/*
Fake st_select_lex should have item list for correctref_array
@@ -427,6 +430,8 @@ int st_select_lex_unit::exec()
(ORDER*) NULL, NULL, (ORDER*) NULL,
options_tmp | SELECT_NO_UNLOCK,
result, this, fake_select_lex);
fake_select_lex->table_list.empty();
if (!res)
thd->limit_found_rows = (ulonglong)table->file->records + add_rows;
/*