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Derived tables no longer are cached. Fix optimizer to handle this fact

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This commit is contained in:
David Hall
2016-05-02 18:43:54 -05:00
parent af77c2ff51
commit 445ac3337b
2 changed files with 18 additions and 27 deletions
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40
dbcon/mysql/ha_calpont_execplan.cpp
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@ -421,13 +421,6 @@ void debug_walk(const Item *item, void *arg)
case Item::SUM_FUNC_ITEM:
{
Item_sum* isp = (Item_sum*)item;
Item_sum_int* isip = 0;
Item_sum_sum* isdp = 0;
Item_sum_avg* isap = 0;
Item_sum_count* iscp = 0;
Item_sum_count* iscdp = 0;
Item_sum_min* isnp = 0;
Item_sum_max* isxp = 0;
char* item_name = item->name;
if (!item_name)
{
@ -436,31 +429,24 @@ void debug_walk(const Item *item, void *arg)
switch (isp->sum_func())
{
case Item_sum::SUM_FUNC:
isip = (Item_sum_int*)isp;
cout << "SUM_FUNC: " << item_name << endl;
break;
case Item_sum::SUM_DISTINCT_FUNC:
isdp = (Item_sum_sum*)isp;
cout << "SUM_DISTINCT_FUNC: " << item_name << endl;
break;
case Item_sum::AVG_FUNC:
isap = (Item_sum_avg*)isp;
cout << "AVG_FUNC: " << item_name << endl;
break;
case Item_sum::COUNT_FUNC:
iscp = (Item_sum_count*)isp;
cout << "COUNT_FUNC: " << item_name << endl;
break;
case Item_sum::COUNT_DISTINCT_FUNC:
iscdp = (Item_sum_count*)isp;
cout << "COUNT_DISTINCT_FUNC: " << item_name << endl;
break;
case Item_sum::MIN_FUNC:
isnp = (Item_sum_min*)isp;
cout << "MIN_FUNC: " << item_name << endl;
break;
case Item_sum::MAX_FUNC:
isxp = (Item_sum_max*)isp;
cout << "MAX_FUNC: " << item_name << endl;
break;
default:
@ -643,16 +629,13 @@ uint32_t buildOuterJoin(gp_walk_info& gwi, SELECT_LEX& select_lex)
// check non-collapsed outer join
// this set contains all processed embedded joins. duplicate joins are ignored
set<TABLE_LIST*> embeddingSet;
// TABLE_LIST* table_ptr = select_lex.get_table_list();
List_iterator_fast<TABLE_LIST> ti(select_lex.top_join_list);
TABLE_LIST *table_ptr;
TABLE_LIST* table_ptr = select_lex.get_table_list();
gp_walk_info gwi_outer = gwi;
gwi_outer.subQuery = NULL;
gwi_outer.hasSubSelect = false;
vector <Item_field*> tmpVec;
// for (; table_ptr; table_ptr= table_ptr->next_local)
while ((table_ptr= ti++))
for (; table_ptr; table_ptr= table_ptr->next_local)
{
gwi_outer.innerTables.clear();
clearStacks(gwi_outer);
@ -1616,7 +1599,13 @@ SimpleColumn* buildSimpleColFromDerivedTable(gp_walk_info& gwi, Item_field* ifp)
// @bug5634, @bug5635. mark used derived col on derived table.
// outer join inner table filter can not be moved in
if (!(ifp->cached_table && ifp->cached_table->outer_join))
// MariaDB 10.1: cached_table is never true for derived tables.
// Find another way to determine outer_join
if (ifp->context &&
ifp->context->table_list &&
ifp->context->table_list->next_local &&
!ifp->context->table_list->next_local->outer_join)
// if ((ifp->cached_table && !ifp->cached_table->outer_join))
{
sc->derivedTable(derivedName);
sc->derivedRefCol(cols[j].get());
@ -4331,7 +4320,6 @@ void parse_item (Item *item, vector<Item_field*>& field_vec, bool& hasNonSupport
parseInfo |= CORRELATED;
break;
}
Item** sfitempp = isp->arguments();
for (uint32_t i = 0; i < isp->argument_count(); i++)
parse_item(isp->arguments()[i], field_vec, hasNonSupportItem, parseInfo);
// parse_item(sfitempp[i], field_vec, hasNonSupportItem, parseInfo);
@ -4566,11 +4554,11 @@ int getSelectPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, bool i
// @todo process from subquery
if (table_ptr->derived)
{
//cout << "DERIVED TABLE DEBUG" << endl;
//String str;
//(table_ptr->derived->first_select())->print(gwi.thd, &str, QT_INFINIDB_DERIVED);
//cout << str.ptr() << endl;
//cout << "DERIVED TABLE DEBUG END" << endl;
cout << "DERIVED TABLE DEBUG" << endl;
String str;
(table_ptr->derived->first_select())->print(gwi.thd, &str, QT_INFINIDB_DERIVED);
cout << str.ptr() << endl;
cout << "DERIVED TABLE DEBUG END" << endl;
SELECT_LEX *select_cursor = table_ptr->derived->first_select();
FromSubQuery fromSub(gwi, select_cursor);