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MCOL-1052 WIP Use SELECT fields referenced in HAVING items list.

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This commit is contained in:
Roman Nozdrin
2018-04-07 04:46:34 +03:00
parent 617ff85b94
commit 6bd13849b2
2 changed files with 23 additions and 0 deletions
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22
dbcon/mysql/ha_calpont_execplan.cpp
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@ -5289,6 +5289,8 @@ void gp_walk(const Item* item, void* arg)
rc = buildReturnedColumnGr(col, *gwip, gwip->fatalParseError);
} else*/
rc = buildReturnedColumn(col, *gwip, gwip->fatalParseError);
if ( col->type() == Item::FIELD_ITEM )
gwip->fatalParseError = false;
}
SimpleColumn* sc = dynamic_cast<SimpleColumn*>(rc);
@ -5361,6 +5363,19 @@ void gp_walk(const Item* item, void* arg)
Item_func* ifp = (Item_func*)col;
gwip->ptWorkStack.push(buildParseTree(ifp, *gwip, gwip->fatalParseError));
}
else if (col->type() == Item::FIELD_ITEM && gwip->clauseType == HAVING)
{
// Найти item в списке groupByFields
Item_func_or_sum* isfp = reinterpret_cast<Item_func_or_sum*>(gwip->havingAggColsItems[0]);
if ( isfp->type() == Item::SUM_FUNC_ITEM )
{
ReturnedColumn* rc = buildAggregateColumn(isfp, *gwip);
}
if (rc)
gwip->rcWorkStack.push(rc);
break;
}
else
cando = false;
@ -8725,6 +8740,13 @@ int getGroupPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, cal_gro
// add this agg col to returnedColumnList
boost::shared_ptr<ReturnedColumn> spac(ac);
gwi.returnedCols.push_back(spac);
// This item will be used in HAVING clause later.
Item_func_or_sum* isfp = reinterpret_cast<Item_func_or_sum*>(item);
if ( ! isfp->name_length )
{
gwi.havingAggColsItems.push_back(item);
}
gwi.selectCols.push_back('`' + escapeBackTick(spac->alias().c_str()) + '`');
String str(256);
item->print(&str, QT_INFINIDB_NO_QUOTE);