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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_view.cpp 9642 2013-06-24 14:57:42Z rdempsey $
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*
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*
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***********************************************************************/
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* $Id: ha_view.cpp 9642 2013-06-24 14:57:42Z rdempsey $
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*
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*
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***********************************************************************/
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#define PREFER_MY_CONFIG_H
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#include <my_config.h>
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@ -46,147 +46,156 @@ using namespace execplan;
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namespace cal_impl_if
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{
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extern uint32_t buildJoin(gp_walk_info& gwi, List<TABLE_LIST>& join_list,
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std::stack<execplan::ParseTree*>& outerJoinStack);
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std::stack<execplan::ParseTree*>& outerJoinStack);
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extern string getViewName(TABLE_LIST* table_ptr);
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CalpontSystemCatalog::TableAliasName& View::viewName()
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{
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return fViewName;
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return fViewName;
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}
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void View::viewName(execplan::CalpontSystemCatalog::TableAliasName& viewName)
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{
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fViewName = viewName;
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fViewName = viewName;
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}
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void View::transform()
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{
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CalpontSelectExecutionPlan* csep = new CalpontSelectExecutionPlan();
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csep->sessionID(fParentGwip->sessionid);
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CalpontSelectExecutionPlan* csep = new CalpontSelectExecutionPlan();
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csep->sessionID(fParentGwip->sessionid);
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// gwi for the sub query
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gp_walk_info gwi;
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gwi.thd = fParentGwip->thd;
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// gwi for the sub query
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gp_walk_info gwi;
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gwi.thd = fParentGwip->thd;
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uint32_t sessionID = csep->sessionID();
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gwi.sessionid = sessionID;
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boost::shared_ptr<CalpontSystemCatalog> csc = CalpontSystemCatalog::makeCalpontSystemCatalog(sessionID);
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csc->identity(CalpontSystemCatalog::FE);
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gwi.csc = csc;
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uint32_t sessionID = csep->sessionID();
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gwi.sessionid = sessionID;
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boost::shared_ptr<CalpontSystemCatalog> csc = CalpontSystemCatalog::makeCalpontSystemCatalog(sessionID);
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csc->identity(CalpontSystemCatalog::FE);
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gwi.csc = csc;
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// traverse the table list of the view
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TABLE_LIST* table_ptr = fSelect.get_table_list();
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CalpontSelectExecutionPlan::SelectList derivedTbList;
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// traverse the table list of the view
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TABLE_LIST* table_ptr = fSelect.get_table_list();
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CalpontSelectExecutionPlan::SelectList derivedTbList;
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// @bug 1796. Remember table order on the FROM list.
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gwi.clauseType = FROM;
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// @bug 1796. Remember table order on the FROM list.
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gwi.clauseType = FROM;
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try
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try
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{
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for (; table_ptr; table_ptr = table_ptr->next_local)
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{
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for (; table_ptr; table_ptr = table_ptr->next_local)
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// mysql put vtable here for from sub. we ignore it
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if (string(table_ptr->table_name.str).find("$vtable") != string::npos)
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continue;
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string viewName = getViewName(table_ptr);
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if (lower_case_table_names)
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{
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boost::algorithm::to_lower(viewName);
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}
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if (table_ptr->derived)
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{
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SELECT_LEX* select_cursor = table_ptr->derived->first_select();
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FromSubQuery* fromSub = new FromSubQuery(gwi, select_cursor);
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string alias(table_ptr->alias.str);
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if (lower_case_table_names)
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{
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// mysql put vtable here for from sub. we ignore it
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if (string(table_ptr->table_name.str).find("$vtable") != string::npos)
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continue;
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string viewName = getViewName(table_ptr);
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if (lower_case_table_names)
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{
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boost::algorithm::to_lower(viewName);
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}
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if (table_ptr->derived)
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{
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SELECT_LEX* select_cursor = table_ptr->derived->first_select();
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FromSubQuery* fromSub = new FromSubQuery(gwi, select_cursor);
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string alias(table_ptr->alias.str);
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if (lower_case_table_names)
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{
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boost::algorithm::to_lower(alias);
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}
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gwi.viewName = make_aliasview("", alias, table_ptr->belong_to_view->alias.str, "", true, lower_case_table_names);
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fromSub->alias(alias);
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gwi.derivedTbList.push_back(SCSEP(fromSub->transform()));
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// set alias to both table name and alias name of the derived table
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CalpontSystemCatalog::TableAliasName tn = make_aliasview("", "", alias, viewName);
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gwi.tbList.push_back(tn);
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gwi.tableMap[tn] = make_pair(0, table_ptr);
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// TODO MCOL-2178 isUnion member only assigned, never used
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// MIGR::infinidb_vtable.isUnion = true; //by-pass the 2nd pass of rnd_init
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}
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else if (table_ptr->view)
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{
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// for nested view, the view name is vout.vin... format
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CalpontSystemCatalog::TableAliasName tn = make_aliasview(table_ptr->db.str, table_ptr->table_name.str, table_ptr->alias.str, viewName, true, lower_case_table_names);
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gwi.viewName = make_aliastable(table_ptr->db.str, table_ptr->table_name.str, viewName, true, lower_case_table_names);
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View* view = new View(*table_ptr->view->first_select_lex(), &gwi);
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view->viewName(gwi.viewName);
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gwi.viewList.push_back(view);
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view->transform();
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}
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else
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{
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// check foreign engine tables
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bool columnStore = (table_ptr->table ? isMCSTable(table_ptr->table) : true);
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// trigger system catalog cache
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if (columnStore)
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csc->columnRIDs(make_table(table_ptr->db.str, table_ptr->table_name.str, lower_case_table_names), true);
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CalpontSystemCatalog::TableAliasName tn = make_aliasview(table_ptr->db.str, table_ptr->table_name.str, table_ptr->alias.str, viewName, columnStore, lower_case_table_names);
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gwi.tbList.push_back(tn);
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gwi.tableMap[tn] = make_pair(0, table_ptr);
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fParentGwip->tableMap[tn] = make_pair(0, table_ptr);
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}
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boost::algorithm::to_lower(alias);
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}
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gwi.viewName =
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make_aliasview("", alias, table_ptr->belong_to_view->alias.str, "", true, lower_case_table_names);
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fromSub->alias(alias);
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gwi.derivedTbList.push_back(SCSEP(fromSub->transform()));
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// set alias to both table name and alias name of the derived table
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CalpontSystemCatalog::TableAliasName tn = make_aliasview("", "", alias, viewName);
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gwi.tbList.push_back(tn);
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gwi.tableMap[tn] = make_pair(0, table_ptr);
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// TODO MCOL-2178 isUnion member only assigned, never used
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// MIGR::infinidb_vtable.isUnion = true; //by-pass the 2nd pass of rnd_init
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}
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else if (table_ptr->view)
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{
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// for nested view, the view name is vout.vin... format
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CalpontSystemCatalog::TableAliasName tn =
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make_aliasview(table_ptr->db.str, table_ptr->table_name.str, table_ptr->alias.str, viewName, true,
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lower_case_table_names);
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gwi.viewName = make_aliastable(table_ptr->db.str, table_ptr->table_name.str, viewName, true,
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lower_case_table_names);
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View* view = new View(*table_ptr->view->first_select_lex(), &gwi);
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view->viewName(gwi.viewName);
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gwi.viewList.push_back(view);
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view->transform();
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}
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else
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{
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// check foreign engine tables
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bool columnStore = (table_ptr->table ? isMCSTable(table_ptr->table) : true);
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if (gwi.fatalParseError)
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{
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setError(gwi.thd, ER_INTERNAL_ERROR, gwi.parseErrorText);
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return;
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}
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// trigger system catalog cache
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if (columnStore)
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csc->columnRIDs(make_table(table_ptr->db.str, table_ptr->table_name.str, lower_case_table_names),
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true);
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CalpontSystemCatalog::TableAliasName tn =
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make_aliasview(table_ptr->db.str, table_ptr->table_name.str, table_ptr->alias.str, viewName,
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columnStore, lower_case_table_names);
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gwi.tbList.push_back(tn);
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gwi.tableMap[tn] = make_pair(0, table_ptr);
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fParentGwip->tableMap[tn] = make_pair(0, table_ptr);
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}
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}
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catch (IDBExcept& ie)
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if (gwi.fatalParseError)
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{
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setError(gwi.thd, ER_INTERNAL_ERROR, ie.what());
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CalpontSystemCatalog::removeCalpontSystemCatalog(sessionID);
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return;
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}
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catch (...)
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{
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string emsg = IDBErrorInfo::instance()->errorMsg(ERR_LOST_CONN_EXEMGR);
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setError(gwi.thd, ER_INTERNAL_ERROR, emsg);
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CalpontSystemCatalog::removeCalpontSystemCatalog(sessionID);
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return;
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setError(gwi.thd, ER_INTERNAL_ERROR, gwi.parseErrorText);
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return;
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}
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}
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catch (IDBExcept& ie)
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{
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setError(gwi.thd, ER_INTERNAL_ERROR, ie.what());
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CalpontSystemCatalog::removeCalpontSystemCatalog(sessionID);
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return;
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}
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catch (...)
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{
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string emsg = IDBErrorInfo::instance()->errorMsg(ERR_LOST_CONN_EXEMGR);
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setError(gwi.thd, ER_INTERNAL_ERROR, emsg);
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CalpontSystemCatalog::removeCalpontSystemCatalog(sessionID);
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return;
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}
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// merge table list to parent select
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fParentGwip->tbList.insert(fParentGwip->tbList.end(), gwi.tbList.begin(), gwi.tbList.end());
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fParentGwip->derivedTbList.insert(fParentGwip->derivedTbList.end(), gwi.derivedTbList.begin(), gwi.derivedTbList.end());
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fParentGwip->correlatedTbNameVec.insert(fParentGwip->correlatedTbNameVec.end(), gwi.correlatedTbNameVec.begin(), gwi.correlatedTbNameVec.end());
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// merge table list to parent select
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fParentGwip->tbList.insert(fParentGwip->tbList.end(), gwi.tbList.begin(), gwi.tbList.end());
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fParentGwip->derivedTbList.insert(fParentGwip->derivedTbList.end(), gwi.derivedTbList.begin(),
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gwi.derivedTbList.end());
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fParentGwip->correlatedTbNameVec.insert(fParentGwip->correlatedTbNameVec.end(),
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gwi.correlatedTbNameVec.begin(), gwi.correlatedTbNameVec.end());
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// merge view list to parent
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fParentGwip->viewList.insert(fParentGwip->viewList.end(), gwi.viewList.begin(), gwi.viewList.end());
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// merge view list to parent
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fParentGwip->viewList.insert(fParentGwip->viewList.end(), gwi.viewList.begin(), gwi.viewList.end());
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// merge non-collapsed outer join to parent select
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stack<ParseTree*> tmpstack;
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// merge non-collapsed outer join to parent select
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stack<ParseTree*> tmpstack;
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while (!gwi.ptWorkStack.empty())
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{
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tmpstack.push(gwi.ptWorkStack.top());
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gwi.ptWorkStack.pop();
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}
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while (!gwi.ptWorkStack.empty())
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{
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tmpstack.push(gwi.ptWorkStack.top());
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gwi.ptWorkStack.pop();
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}
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while (!tmpstack.empty())
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{
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fParentGwip->ptWorkStack.push(tmpstack.top());
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tmpstack.pop();
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}
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while (!tmpstack.empty())
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{
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fParentGwip->ptWorkStack.push(tmpstack.top());
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tmpstack.pop();
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}
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}
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uint32_t View::processJoin(gp_walk_info& gwi, std::stack<execplan::ParseTree*>& outerJoinStack)
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{
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return buildJoin(gwi, fSelect.top_join_list, outerJoinStack);
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return buildJoin(gwi, fSelect.top_join_list, outerJoinStack);
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}
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}
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} // namespace cal_impl_if
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