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MCOL-1052 WIP Replace SimpleColumn with ConstantColumn when server pushes equal predicate using cond_push.

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This commit is contained in:
Roman Nozdrin
2018-04-29 21:13:11 +03:00
parent f8c08f8b0b
commit fdbf82e48d
3 changed files with 100 additions and 5 deletions
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23
dbcon/mysql/ha_calpont_impl.cpp
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@@ -5249,6 +5249,29 @@ int ha_calpont_impl_group_by_init(ha_calpont_group_by_handler* group_hand, TABLE
gi.groupByHaving = group_hand->having;
gi.groupByDistinct = group_hand->distinct;
// MCOL-1052 Send pushed conditions here, since server could omit GROUP BY
// items in case of = or IN functions used on GROUP BY columns.
{
CalTableMap::iterator mapiter;
execplan::CalpontSelectExecutionPlan::ColumnMap::iterator colMapIter;
execplan::CalpontSelectExecutionPlan::ColumnMap::iterator condColMapIter;
execplan::ParseTree* ptIt;
execplan::ReturnedColumn* rcIt;
for(TABLE_LIST* tl = gi.groupByTables; tl; tl=tl->next_local)
{
mapiter = ci->tableMap.find(tl->table);
if(mapiter != ci->tableMap.end() && mapiter->second.condInfo != NULL
&& mapiter->second.condInfo->condPush)
{
while(!mapiter->second.condInfo->ptWorkStack.empty())
{
ptIt=mapiter->second.condInfo->ptWorkStack.top();
mapiter->second.condInfo->ptWorkStack.pop();
gi.pushedPts.push_back(ptIt);
}
}
}
}
// send plan whenever group_init is called
int status = cp_get_group_plan(thd, csep, gi);