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Leonid Fedorov
@ -17,10 +17,10 @@
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MA 02110-1301, USA. */
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/***********************************************************************
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* $Id: ha_exists_sub.cpp 6426 2010-03-30 18:46:11Z zzhu $
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*
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*
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***********************************************************************/
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* $Id: ha_exists_sub.cpp 6426 2010-03-30 18:46:11Z zzhu $
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*
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*
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***********************************************************************/
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/** @file */
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/** class ExistsSub definition */
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@ -47,108 +47,111 @@ extern void makeAntiJoin(const ParseTree* n);
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void checkCorrelation(const ParseTree* n, void* obj)
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{
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ExistsFilter* ef = reinterpret_cast<ExistsFilter*>(obj);
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TreeNode* tn = n->data();
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SimpleFilter* sf = dynamic_cast<SimpleFilter*>(tn);
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ExistsFilter* ef = reinterpret_cast<ExistsFilter*>(obj);
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TreeNode* tn = n->data();
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SimpleFilter* sf = dynamic_cast<SimpleFilter*>(tn);
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if (!sf)
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return;
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if (!sf)
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return;
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uint64_t lJoinInfo = sf->lhs()->joinInfo();
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uint64_t rJoinInfo = sf->rhs()->joinInfo();
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uint64_t lJoinInfo = sf->lhs()->joinInfo();
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uint64_t rJoinInfo = sf->rhs()->joinInfo();
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if (lJoinInfo & JOIN_CORRELATED)
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{
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ConstantColumn* cc = dynamic_cast<ConstantColumn*>(sf->rhs());
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if (lJoinInfo & JOIN_CORRELATED)
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{
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ConstantColumn* cc = dynamic_cast<ConstantColumn*>(sf->rhs());
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if ((!cc || (cc && sf->op()->op() == OP_EQ)) && !(rJoinInfo & JOIN_CORRELATED))
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ef->correlated(true);
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}
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if ((!cc || (cc && sf->op()->op() == OP_EQ)) && !(rJoinInfo & JOIN_CORRELATED))
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ef->correlated(true);
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}
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if (rJoinInfo & JOIN_CORRELATED)
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{
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ConstantColumn* cc = dynamic_cast<ConstantColumn*>(sf->lhs());
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if (rJoinInfo & JOIN_CORRELATED)
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{
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ConstantColumn* cc = dynamic_cast<ConstantColumn*>(sf->lhs());
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if ((!cc || (cc && sf->op()->op() == OP_EQ)) && !(lJoinInfo & JOIN_CORRELATED))
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ef->correlated(true);
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}
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if ((!cc || (cc && sf->op()->op() == OP_EQ)) && !(lJoinInfo & JOIN_CORRELATED))
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ef->correlated(true);
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}
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}
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ExistsSub::ExistsSub(gp_walk_info& gwip) : WhereSubQuery(gwip)
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{}
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{
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}
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ExistsSub::ExistsSub(gp_walk_info& gwip, Item_subselect* sub) :
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WhereSubQuery(gwip, sub)
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{}
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ExistsSub::ExistsSub(gp_walk_info& gwip, Item_subselect* sub) : WhereSubQuery(gwip, sub)
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{
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}
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ExistsSub::~ExistsSub()
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{}
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{
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}
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execplan::ParseTree* ExistsSub::transform()
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{
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idbassert(fSub);
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idbassert(fSub);
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SCSEP csep(new CalpontSelectExecutionPlan());
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csep->sessionID(fGwip.sessionid);
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csep->location(CalpontSelectExecutionPlan::WHERE);
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csep->subType (CalpontSelectExecutionPlan::EXISTS_SUBS);
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SCSEP csep(new CalpontSelectExecutionPlan());
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csep->sessionID(fGwip.sessionid);
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csep->location(CalpontSelectExecutionPlan::WHERE);
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csep->subType(CalpontSelectExecutionPlan::EXISTS_SUBS);
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// gwi for the sub query
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gp_walk_info gwi;
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gwi.thd = fGwip.thd;
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gwi.subQuery = this;
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// gwi for the sub query
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gp_walk_info gwi;
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gwi.thd = fGwip.thd;
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gwi.subQuery = this;
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// @4827 merge table list to gwi in case there is FROM sub to be referenced
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// in the FROM sub
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gwi.derivedTbCnt = fGwip.derivedTbList.size();
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uint32_t tbCnt = fGwip.tbList.size();
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// @4827 merge table list to gwi in case there is FROM sub to be referenced
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// in the FROM sub
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gwi.derivedTbCnt = fGwip.derivedTbList.size();
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uint32_t tbCnt = fGwip.tbList.size();
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gwi.tbList.insert(gwi.tbList.begin(), fGwip.tbList.begin(), fGwip.tbList.end());
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gwi.derivedTbList.insert(gwi.derivedTbList.begin(), fGwip.derivedTbList.begin(), fGwip.derivedTbList.end());
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gwi.tbList.insert(gwi.tbList.begin(), fGwip.tbList.begin(), fGwip.tbList.end());
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gwi.derivedTbList.insert(gwi.derivedTbList.begin(), fGwip.derivedTbList.begin(), fGwip.derivedTbList.end());
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if (fSub->get_select_lex()->with_sum_func)
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{
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fGwip.fatalParseError = true;
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fGwip.parseErrorText = logging::IDBErrorInfo::instance()->errorMsg(logging::ERR_AGG_EXISTS);
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return NULL;
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}
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if (fSub->get_select_lex()->with_sum_func)
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{
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fGwip.fatalParseError = true;
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fGwip.parseErrorText = logging::IDBErrorInfo::instance()->errorMsg(logging::ERR_AGG_EXISTS);
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return NULL;
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}
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if (getSelectPlan(gwi, *(fSub->get_select_lex()), csep, false) != 0)
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{
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fGwip.fatalParseError = true;
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if (getSelectPlan(gwi, *(fSub->get_select_lex()), csep, false) != 0)
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{
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fGwip.fatalParseError = true;
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if (gwi.fatalParseError && !gwi.parseErrorText.empty())
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fGwip.parseErrorText = gwi.parseErrorText;
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else
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fGwip.parseErrorText = "Error occured in ExistsSub::transform()";
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if (gwi.fatalParseError && !gwi.parseErrorText.empty())
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fGwip.parseErrorText = gwi.parseErrorText;
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else
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fGwip.parseErrorText = "Error occured in ExistsSub::transform()";
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return NULL;
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}
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return NULL;
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}
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// remove outer query tables
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CalpontSelectExecutionPlan::TableList tblist;
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// remove outer query tables
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CalpontSelectExecutionPlan::TableList tblist;
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if (csep->tableList().size() >= tbCnt)
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tblist.insert(tblist.begin(), csep->tableList().begin() + tbCnt, csep->tableList().end());
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if (csep->tableList().size() >= tbCnt)
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tblist.insert(tblist.begin(), csep->tableList().begin() + tbCnt, csep->tableList().end());
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CalpontSelectExecutionPlan::SelectList derivedTbList;
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CalpontSelectExecutionPlan::SelectList derivedTbList;
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if (csep->derivedTableList().size() >= gwi.derivedTbCnt)
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derivedTbList.insert(derivedTbList.begin(), csep->derivedTableList().begin() + gwi.derivedTbCnt, csep->derivedTableList().end());
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if (csep->derivedTableList().size() >= gwi.derivedTbCnt)
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derivedTbList.insert(derivedTbList.begin(), csep->derivedTableList().begin() + gwi.derivedTbCnt,
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csep->derivedTableList().end());
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csep->tableList(tblist);
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csep->derivedTableList(derivedTbList);
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csep->tableList(tblist);
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csep->derivedTableList(derivedTbList);
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ExistsFilter* subFilter = new ExistsFilter();
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subFilter->correlated(false);
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subFilter->sub(csep);
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const ParseTree* pt = csep->filters();
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ExistsFilter* subFilter = new ExistsFilter();
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subFilter->correlated(false);
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subFilter->sub(csep);
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const ParseTree* pt = csep->filters();
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if (pt)
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pt->walk(checkCorrelation, subFilter);
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if (pt)
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pt->walk(checkCorrelation, subFilter);
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fGwip.subselectList.push_back(csep);
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return new ParseTree(subFilter);
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fGwip.subselectList.push_back(csep);
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return new ParseTree(subFilter);
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}
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/**
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@ -158,20 +161,20 @@ execplan::ParseTree* ExistsSub::transform()
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*/
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void ExistsSub::handleNot()
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{
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ParseTree* pt = fGwip.ptWorkStack.top();
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ExistsFilter* subFilter = dynamic_cast<ExistsFilter*>(pt->data());
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idbassert(subFilter);
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subFilter->notExists(true);
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SCSEP csep = subFilter->sub();
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const ParseTree* ptsub = csep->filters();
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ParseTree* pt = fGwip.ptWorkStack.top();
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ExistsFilter* subFilter = dynamic_cast<ExistsFilter*>(pt->data());
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idbassert(subFilter);
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subFilter->notExists(true);
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SCSEP csep = subFilter->sub();
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const ParseTree* ptsub = csep->filters();
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if (ptsub)
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ptsub->walk(makeAntiJoin);
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if (ptsub)
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ptsub->walk(makeAntiJoin);
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ptsub = csep->having();
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ptsub = csep->having();
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if (ptsub)
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ptsub->walk(makeAntiJoin);
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if (ptsub)
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ptsub->walk(makeAntiJoin);
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}
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}
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} // namespace cal_impl_if
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