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Subquery optimizations backport: fix test failures, update test results.

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This commit is contained in:
Sergey Petrunya
2010-02-18 00:59:41 +03:00
parent 663773aa8c
commit d63959eed3
13 changed files with 117 additions and 81 deletions
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8
sql/sql_union.cc
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@ -103,6 +103,8 @@ bool select_union::flush()
is_union_distinct if set, the temporary table will eliminate
duplicates on insert
options create options
table_alias name of the temporary table
bit_fields_as_long convert bit fields to ulonglong
DESCRIPTION
Create a temporary table that is used to store the result of a UNION,
@ -116,11 +118,13 @@ bool select_union::flush()
bool
select_union::create_result_table(THD *thd_arg, List<Item> *column_types,
bool is_union_distinct, ulonglong options,
const char *alias)
const char *alias,
bool bit_fields_as_long)
{
DBUG_ASSERT(table == 0);
tmp_table_param.init();
tmp_table_param.field_count= column_types->elements;
tmp_table_param.bit_fields_as_long= bit_fields_as_long;
if (! (table= create_tmp_table(thd_arg, &tmp_table_param, *column_types,
(ORDER*) 0, is_union_distinct, 1,
@ -350,7 +354,7 @@ bool st_select_lex_unit::prepare(THD *thd_arg, select_result *sel_result,
create_options= create_options | TMP_TABLE_FORCE_MYISAM;
if (union_result->create_result_table(thd, &types, test(union_distinct),
create_options, ""))
create_options, "", FALSE))
goto err;
bzero((char*) &result_table_list, sizeof(result_table_list));
result_table_list.db= (char*) "";