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MCOL-1052 WIP Uses item_ptr instead of auxilary vector; Changes fetchNextRow() interface and remove unused funcs; Uncomment extra checks in ha_calpont_impl_group_by_init().

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This commit is contained in:
Roman Nozdrin
2018-04-11 15:52:26 +03:00
parent 5a0ff2bb60
commit ba38e392fc
4 changed files with 102 additions and 1541 deletions
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716
dbcon/mysql/ha_calpont_execplan.cpp
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@ -2978,260 +2978,6 @@ ReturnedColumn* buildReturnedColumn(Item* item, gp_walk_info& gwi, bool& nonSupp
return rc;
}
ReturnedColumn* buildReturnedColumnGr(Item* item, gp_walk_info& gwi, bool& nonSupport)
{
ReturnedColumn* rc = NULL;
if ( gwi.thd)
{
//if ( ((gwi.thd->lex)->sql_command == SQLCOM_UPDATE ) || ((gwi.thd->lex)->sql_command == SQLCOM_UPDATE_MULTI ))
{
if ( !item->fixed)
{
item->fix_fields(gwi.thd, (Item**)&item);
}
}
}
Item::Type itype = Item::SUM_FUNC_ITEM;
switch (itype)
{
case Item::FIELD_ITEM:
{
Item_field* ifp = (Item_field*)item;
return buildSimpleColumn(ifp, gwi);
}
case Item::INT_ITEM:
case Item::VARBIN_ITEM:
{
String val, *str = item->val_str(&val);
string valStr;
valStr.assign(str->ptr(), str->length());
if (item->unsigned_flag)
{
//cc = new ConstantColumn(valStr, (uint64_t)item->val_uint(), ConstantColumn::NUM);
// It seems that str at this point is crap if val_uint() is > MAX_BIGINT. By using
// this constructor, ConstantColumn is built with the proper string. For whatever reason,
// ExeMgr converts the fConstval member to numeric, rather than using the existing numeric
// values available, so it's important to have fConstval correct.
rc = new ConstantColumn((uint64_t)item->val_uint(), ConstantColumn::NUM);
}
else
{
rc = new ConstantColumn(valStr, (int64_t)item->val_int(), ConstantColumn::NUM);
}
//return cc;
break;
}
case Item::STRING_ITEM:
{
String val, *str = item->val_str(&val);
string valStr;
valStr.assign(str->ptr(), str->length());
rc = new ConstantColumn(valStr);
break;
}
case Item::REAL_ITEM:
{
String val, *str = item->val_str(&val);
string valStr;
valStr.assign(str->ptr(), str->length());
rc = new ConstantColumn(valStr, item->val_real());
break;
}
case Item::DECIMAL_ITEM:
{
rc = buildDecimalColumn(item, gwi);
break;
}
case Item::FUNC_ITEM:
{
Item_func* ifp = (Item_func*)item;
string func_name = ifp->func_name();
// try to evaluate const F&E. only for select clause
vector <Item_field*> tmpVec;
//bool hasAggColumn = false;
uint16_t parseInfo = 0;
parse_item(ifp, tmpVec, gwi.fatalParseError, parseInfo);
if (parseInfo & SUB_BIT)
{
gwi.fatalParseError = true;
gwi.parseErrorText = IDBErrorInfo::instance()->errorMsg(ERR_NON_SUPPORT_SELECT_SUB);
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED, gwi.parseErrorText, gwi);
break;
}
if (!gwi.fatalParseError &&
!nonConstFunc(ifp) &&
!(parseInfo & AF_BIT) &&
(tmpVec.size() == 0))
{
String val, *str = ifp->val_str(&val);
string valStr;
if (str)
{
valStr.assign(str->ptr(), str->length());
}
if (!str)
{
rc = new ConstantColumn("", ConstantColumn::NULLDATA);
}
else if (ifp->result_type() == STRING_RESULT)
{
rc = new ConstantColumn(valStr, ConstantColumn::LITERAL);
rc->resultType(colType_MysqlToIDB(item));
}
else if (ifp->result_type() == DECIMAL_RESULT)
rc = buildDecimalColumn(ifp, gwi);
else
{
rc = new ConstantColumn(valStr, ConstantColumn::NUM);
rc->resultType(colType_MysqlToIDB(item));
}
break;
}
if (func_name == "+" || func_name == "-" || func_name == "*" || func_name == "/" )
return buildArithmeticColumn(ifp, gwi, nonSupport);
else
return buildFunctionColumn(ifp, gwi, nonSupport);
}
case Item::SUM_FUNC_ITEM:
{
return buildAggregateColumn(item, gwi);
}
case Item::REF_ITEM:
{
Item_ref* ref = (Item_ref*)item;
switch ((*(ref->ref))->type())
{
case Item::SUM_FUNC_ITEM:
return buildAggregateColumn(*(ref->ref), gwi);
case Item::FIELD_ITEM:
return buildReturnedColumn(*(ref->ref), gwi, nonSupport);
case Item::REF_ITEM:
return buildReturnedColumn(*(((Item_ref*)(*(ref->ref)))->ref), gwi, nonSupport);
case Item::FUNC_ITEM:
return buildFunctionColumn((Item_func*)(*(ref->ref)), gwi, nonSupport);
case Item::WINDOW_FUNC_ITEM:
return buildWindowFunctionColumn(*(ref->ref), gwi, nonSupport);
default:
gwi.fatalParseError = true;
gwi.parseErrorText = "Unknown REF item";
break;
}
}
case Item::NULL_ITEM:
{
if (gwi.condPush)
return new SimpleColumn("noop");
return new ConstantColumn("", ConstantColumn::NULLDATA);
}
case Item::CACHE_ITEM:
{
Item* col = ((Item_cache*)item)->get_example();
rc = buildReturnedColumn(col, gwi, nonSupport);
if (rc)
{
ConstantColumn* cc = dynamic_cast<ConstantColumn*>(rc);
if (!cc)
{
rc->joinInfo(rc->joinInfo() | JOIN_CORRELATED);
if (gwi.subQuery)
gwi.subQuery->correlated(true);
}
}
break;
}
case Item::EXPR_CACHE_ITEM:
{
// TODO: item is a Item_cache_wrapper
printf("EXPR_CACHE_ITEM in buildReturnedColumn\n");
cerr << "EXPR_CACHE_ITEM in buildReturnedColumn" << endl;
break;
}
case Item::DATE_ITEM:
{
String val, *str = item->val_str(&val);
string valStr;
valStr.assign(str->ptr(), str->length());
rc = new ConstantColumn(valStr);
break;
}
case Item::WINDOW_FUNC_ITEM:
{
return buildWindowFunctionColumn(item, gwi, nonSupport);
}
#if INTERVAL_ITEM
case Item::INTERVAL_ITEM:
{
Item_interval* interval = (Item_interval*)item;
SRCP srcp;
srcp.reset(buildReturnedColumn(interval->item, gwi, nonSupport));
if (!srcp)
return NULL;
rc = new IntervalColumn(srcp, (int)interval->interval);
rc->resultType(srcp->resultType());
break;
}
#endif
case Item::SUBSELECT_ITEM:
{
gwi.hasSubSelect = true;
break;
}
default:
{
gwi.fatalParseError = true;
gwi.parseErrorText = "Unknown item type";
break;
}
}
if (rc && item->name)
rc->alias(item->name);
return rc;
}
ArithmeticColumn* buildArithmeticColumn(Item_func* item, gp_walk_info& gwi, bool& nonSupport)
{
if (!(gwi.thd->infinidb_vtable.cal_conn_info))
@ -8249,10 +7995,6 @@ int cp_get_group_plan(THD* thd, SCSEP& csep, cal_impl_if::cal_group_info& gi)
else if (status < 0)
return status;
cerr << "---------------- cp_get_group_plan EXECUTION PLAN ----------------" << endl;
cerr << *csep << endl ;
cerr << "-------------- EXECUTION PLAN END --------------\n" << endl;
return 0;
}
@ -8273,11 +8015,10 @@ int getGroupPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, cal_gro
gwi.internalDecimalScale = (gwi.thd->variables.infinidb_use_decimal_scale ? gwi.thd->variables.infinidb_decimal_scale : -1);
gwi.subSelectType = csep->subType();
// MCOL-1052
JOIN* join = select_lex.join;
Item_cond* icp = 0;
// MCOL-1052
if ( gi.groupByWhere )
icp = reinterpret_cast<Item_cond*>(gi.groupByWhere);
@ -8485,7 +8226,7 @@ int getGroupPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, cal_gro
{
gwi.rcWorkStack.push(new ConstantColumn((int64_t)0, ConstantColumn::NUM));
}
// MCOL-1052
uint32_t failed = buildOuterJoin(gwi, select_lex);
if (failed) return failed;
@ -8678,12 +8419,11 @@ 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|ORDER clause later.
// This item will be used in HAVING later.
Item_func_or_sum* isfp = reinterpret_cast<Item_func_or_sum*>(item);
if ( ! isfp->name_length )
{
gwi.havingAggColsItems.push_back(item);
gwi.extSelectColsItems.push_back(item);
}
gwi.selectCols.push_back('`' + escapeBackTick(spac->alias().c_str()) + '`');
@ -9143,11 +8883,9 @@ int getGroupPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, cal_gro
gwi.fatalParseError = false;
gwi.parseErrorText = "";
//if (gi.groupByHaving != 0)
if ( select_lex.having != 0 )
if (gi.groupByHaving != 0)
{
Item_cond* having = reinterpret_cast<Item_cond*>(select_lex.having);
//Item_cond* having = reinterpret_cast<Item_cond*>(gi.groupByHaving);
Item_cond* having = reinterpret_cast<Item_cond*>(gi.groupByHaving);
#ifdef DEBUG_WALK_COND
cerr << "------------------- HAVING ---------------------" << endl;
having->traverse_cond(debug_walk, &gwi, Item::POSTFIX);
@ -9202,7 +8940,6 @@ int getGroupPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, cal_gro
for (uint32_t i = 0; i < funcFieldVec.size(); i++)
{
//SimpleColumn *sc = new SimpleColumn(funcFieldVec[i]->db_name, bestTableName(funcFieldVec[i])/*funcFieldVec[i]->table_name*/, funcFieldVec[i]->field_name, sessionID);
SimpleColumn* sc = buildSimpleColumn(funcFieldVec[i], gwi);
if (!sc || gwi.fatalParseError)
@ -9570,388 +9307,113 @@ int getGroupPlan(gp_walk_info& gwi, SELECT_LEX& select_lex, SCSEP& csep, cal_gro
// for subquery, order+limit by will be supported in infinidb. build order by columns
// @todo union order by and limit support
//if (gwi.hasWindowFunc || gwi.subSelectType != CalpontSelectExecutionPlan::MAIN_SELECT)
for (; ordercol; ordercol = ordercol->next)
{
for (; ordercol; ordercol = ordercol->next)
ReturnedColumn* rc = NULL;
if (ordercol->in_field_list && ordercol->counter_used)
{
ReturnedColumn* rc = NULL;
rc = gwi.returnedCols[ordercol->counter - 1]->clone();
rc->orderPos(ordercol->counter - 1);
// can not be optimized off if used in order by with counter.
// set with self derived table alias if it's derived table
gwi.returnedCols[ordercol->counter - 1]->incRefCount();
}
else
{
Item* ord_item = *(ordercol->item);
if (ordercol->in_field_list && ordercol->counter_used)
{
rc = gwi.returnedCols[ordercol->counter - 1]->clone();
rc->orderPos(ordercol->counter - 1);
// can not be optimized off if used in order by with counter.
// set with self derived table alias if it's derived table
gwi.returnedCols[ordercol->counter - 1]->incRefCount();
}
// ignore not_used column on order by.
if (ord_item->type() == Item::INT_ITEM && ord_item->full_name() && string(ord_item->full_name()) == "Not_used")
continue;
else if (ord_item->type() == Item::INT_ITEM)
rc = gwi.returnedCols[((Item_int*)ord_item)->val_int() - 1]->clone();
else if (ord_item->type() == Item::SUBSELECT_ITEM)
gwi.fatalParseError = true;
else
rc = buildReturnedColumn(ord_item, gwi, gwi.fatalParseError);
// Looking for a match for this item in GROUP BY list.
if ( rc && ord_item->type() == Item::FIELD_ITEM )
{
Item* ord_item = *(ordercol->item);
// ignore not_used column on order by.
if (ord_item->type() == Item::INT_ITEM && ord_item->full_name() && string(ord_item->full_name()) == "Not_used")
continue;
else if (ord_item->type() == Item::INT_ITEM)
rc = gwi.returnedCols[((Item_int*)ord_item)->val_int() - 1]->clone();
else if (ord_item->type() == Item::SUBSELECT_ITEM)
gwi.fatalParseError = true;
else
rc = buildReturnedColumn(ord_item, gwi, gwi.fatalParseError);
// Looking for a match for this item in GROUP BY list.
if ( rc && ord_item->type() == Item::FIELD_ITEM )
execplan::CalpontSelectExecutionPlan::ReturnedColumnList::iterator iter = gwi.groupByCols.begin();
for( ; iter != gwi.groupByCols.end(); iter++ )
{
execplan::CalpontSelectExecutionPlan::ReturnedColumnList::iterator iter = gwi.groupByCols.begin();
for( ; iter != gwi.groupByCols.end(); iter++ )
{
if( rc->sameColumn((*iter).get()) )
break;
}
// MCOL-1052 GROUP BY items list doesn't contain
// this ORDER BY item.
if ( iter == gwi.groupByCols.end() )
{
string emsg = IDBErrorInfo::instance()->errorMsg(ERR_NOT_GROUPBY_EXPRESSION);
gwi.parseErrorText = emsg;
setError(gwi.thd, ER_INTERNAL_ERROR, emsg, gwi);
return ERR_NOT_GROUPBY_EXPRESSION;
}
if( rc->sameColumn((*iter).get()) )
break;
}
// @bug5501 try item_ptr if item can not be fixed. For some
// weird dml statement state, item can not be fixed but the
// infomation is available in item_ptr.
if (!rc || gwi.fatalParseError)
// MCOL-1052 GROUP BY items list doesn't contain
// this ORDER BY item.
if ( iter == gwi.groupByCols.end() )
{
gwi.fatalParseError = false;
Item* item_ptr = ordercol->item_ptr;
while (item_ptr->type() == Item::REF_ITEM)
item_ptr = *(((Item_ref*)item_ptr)->ref);
rc = buildReturnedColumn(item_ptr, gwi, gwi.fatalParseError);
}
// This ORDER BY item must be a agg function - try to
// find corresponding item in the exteded SELECT list.
if (!rc)
{
rc = buildReturnedColumn(gwi.extSelectColsItems[0], gwi, gwi.fatalParseError);
}
if (!rc)
{
string emsg = IDBErrorInfo::instance()->errorMsg(ERR_NON_SUPPORT_ORDER_BY);
Item_ident *iip = reinterpret_cast<Item_ident*>(ord_item);
std::ostringstream ostream;
ostream << "'";
if (iip->db_name)
ostream << iip->db_name << '.';
else
ostream << "unknown db" << '.';
if (iip->table_name)
ostream << iip->table_name << '.';
else
ostream << "unknown table" << '.';
if (iip->field_name)
ostream << iip->field_name;
else
ostream << "unknown field";
ostream << "'";
Message::Args args;
args.add(ostream.str());
string emsg = IDBErrorInfo::instance()->errorMsg(ERR_NOT_GROUPBY_EXPRESSION, args);
gwi.parseErrorText = emsg;
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED, emsg, gwi);
return ER_CHECK_NOT_IMPLEMENTED;
setError(gwi.thd, ER_INTERNAL_ERROR, emsg, gwi);
return ERR_NOT_GROUPBY_EXPRESSION;
}
}
if (ordercol->direction == ORDER::ORDER_ASC)
rc->asc(true);
else
rc->asc(false);
gwi.orderByCols.push_back(SRCP(rc));
}
}
/*
else if (!isUnion)
{
vector <Item_field*> fieldVec;
bool addToSel;
// the following order by is just for redo phase
if (!unionSel)
{
for (; ordercol; ordercol = ordercol->next)
// @bug5501 try item_ptr if item can not be fixed. For some
// weird dml statement state, item can not be fixed but the
// infomation is available in item_ptr.
if (!rc || gwi.fatalParseError)
{
Item* ord_item = *(ordercol->item);
gwi.fatalParseError = false;
Item* item_ptr = ordercol->item_ptr;
// @bug5993. Could be nested ref.
while (ord_item->type() == Item::REF_ITEM)
ord_item = (*((Item_ref*)ord_item)->ref);
while (item_ptr->type() == Item::REF_ITEM)
item_ptr = *(((Item_ref*)item_ptr)->ref);
// @bug 1706. re-construct the order by item one by one
//Item* ord_item = *(ordercol->item);
if (ord_cols.length() != 0)
ord_cols += ", ";
addToSel = true;
string fullname;
if (ordercol->in_field_list && ordercol->counter_used)
{
ostringstream oss;
oss << ordercol->counter;
ord_cols += oss.str();
if (ordercol->direction != ORDER::ORDER_ASC)
ord_cols += " desc";
continue;
}
else if (ord_item->type() == Item::FUNC_ITEM)
{
// @bug 2621. order by alias
if (!ord_item->is_autogenerated_name && ord_item->name)
{
ord_cols += ord_item->name;
continue;
}
// if there's group by clause or aggregate column, check to see
// if this item or the arguments is on the GB list.
ReturnedColumn* rc = 0;
// check if this order by column is on the select list
Item_func* ifp = (Item_func*)(*(ordercol->item));
rc = buildFunctionColumn(ifp, gwi, gwi.fatalParseError);
if (rc)
{
for (uint32_t i = 0; i < gwi.returnedCols.size(); i++)
{
if (rc && rc->operator==(gwi.returnedCols[i].get()))
{
ostringstream oss;
oss << i + 1;
ord_cols += oss.str();
addToSel = false;
break;
}
}
}
if (addToSel)
{
FunctionColumn* fc = dynamic_cast<FunctionColumn*>(rc);
if (fc)
{
addToSel = false;
redo = true;
string ord_func = string(ifp->func_name()) + "(";
for (uint32_t i = 0; i < fc->functionParms().size(); i++)
{
if (i != 0)
ord_func += ",";
for (uint32_t j = 0; j < gwi.returnedCols.size(); j++)
{
if (fc->functionParms()[i]->data()->operator==(gwi.returnedCols[j].get()))
{
ord_func += "`" + escapeBackTick(gwi.returnedCols[j]->alias().c_str()) + "`";
continue;
}
AggregateColumn* ac = dynamic_cast<AggregateColumn*>(fc->functionParms()[i]->data());
if (ac)
{
gwi.parseErrorText = IDBErrorInfo::instance()->errorMsg(ERR_NON_SUPPORT_ORDER_BY);
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED, gwi.parseErrorText, gwi);
return ER_CHECK_NOT_IMPLEMENTED;
}
addToSel = true;
//continue;
}
}
ord_func += ")";
if (!addToSel)
ord_cols += ord_func;
}
}
}
else if (ord_item->type() == Item::SUBSELECT_ITEM)
{
string emsg = IDBErrorInfo::instance()->errorMsg(ERR_NON_SUPPORT_ORDER_BY);
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED, emsg, gwi);
return ER_CHECK_NOT_IMPLEMENTED;
}
else if (ord_item->type() == Item::SUM_FUNC_ITEM)
{
ReturnedColumn* ac = 0;
Item_sum* ifp = (Item_sum*)(*(ordercol->item));
// @bug3477. add aggregate column to the select list of the create phase.
ac = buildAggregateColumn(ifp, gwi);
if (!ac)
{
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED,
IDBErrorInfo::instance()->errorMsg(ERR_NON_SUPPORT_ORDER_BY), gwi);
return ER_CHECK_NOT_IMPLEMENTED;
}
// check if this order by column is on the select list
for (uint32_t i = 0; i < gwi.returnedCols.size(); i++)
{
AggregateColumn* ret = dynamic_cast<AggregateColumn*>(gwi.returnedCols[i].get());
if (!ret)
continue;
if (ac->operator==(gwi.returnedCols[i].get()))
{
ostringstream oss;
oss << i + 1;
ord_cols += oss.str();
addToSel = false;
break;
}
}
if (ac || !gwi.groupByCols.empty())
{
if (addToSel)
{
redo = true;
// @bug 3076. do not add the argument of aggregate function to the SELECT list,
// instead, add the whole column
String str;
ord_item->print(&str, QT_INFINIDB_NO_QUOTE);
if (sel_cols_in_create.length() != 0)
sel_cols_in_create += ", ";
sel_cols_in_create += str.c_ptr();
//gwi.selectCols.push_back(" `" + string(str.c_ptr()) + "`");
SRCP srcp(ac);
gwi.returnedCols.push_back(srcp);
ord_cols += " `" + escapeBackTick(str.c_ptr()) + "`";
}
if (ordercol->direction != ORDER::ORDER_ASC)
ord_cols += " desc";
continue;
}
}
else if (ord_item->name && ord_item->type() == Item::FIELD_ITEM)
{
Item_field* field = reinterpret_cast<Item_field*>(ord_item);
ReturnedColumn* rc = buildSimpleColumn(field, gwi);
fullname = field->full_name();
for (uint32_t i = 0; i < gwi.returnedCols.size(); i++)
{
SimpleColumn* sc = dynamic_cast<SimpleColumn*>(gwi.returnedCols[i].get());
if (sc && ((Item_field*)ord_item)->cached_table &&
(strcasecmp(getViewName(((Item_field*)ord_item)->cached_table).c_str(), sc->viewName().c_str()) != 0))
{
continue;
}
if (strcasecmp(fullname.c_str(), gwi.returnedCols[i]->alias().c_str()) == 0 ||
strcasecmp(ord_item->name, gwi.returnedCols[i]->alias().c_str()) == 0)
{
ord_cols += string(" `") + escapeBackTick(gwi.returnedCols[i]->alias().c_str()) + '`';
addToSel = false;
break;
}
if (sc && sc->sameColumn(rc))
{
ostringstream oss;
oss << i + 1;
ord_cols += oss.str();
addToSel = false;
break;
}
}
}
if (addToSel)
{
// @bug 2719. Error out order by not on the distinct select list.
if ( gi.groupByDistinct )
{
gwi.parseErrorText = IDBErrorInfo::instance()->errorMsg(ERR_ORDERBY_NOT_IN_DISTINCT);
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED, gwi.parseErrorText, gwi);
return ER_CHECK_NOT_IMPLEMENTED;
}
bool hasNonSupportItem = false;
uint16_t parseInfo = 0;
parse_item(ord_item, fieldVec, hasNonSupportItem, parseInfo);
if (hasNonSupportItem)
{
string emsg = IDBErrorInfo::instance()->errorMsg(ERR_NON_SUPPORT_ORDER_BY);
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED, emsg, gwi);
return ER_CHECK_NOT_IMPLEMENTED;
}
String str;
ord_item->print(&str, QT_INFINIDB);
ord_cols += str.c_ptr();
}
if (ordercol->direction != ORDER::ORDER_ASC)
ord_cols += " desc";
rc = buildReturnedColumn(item_ptr, gwi, gwi.fatalParseError);
}
// This ORDER BY item must be an agg function -
// the ordercol->item_ptr and exteded SELECT list
// must contain the corresponding item.
if (!rc)
{
Item* item_ptr = ordercol->item_ptr;
if (item_ptr)
rc = buildReturnedColumn(item_ptr, gwi, gwi.fatalParseError);
}
}
redo = (redo || fieldVec.size() != 0);
// populate string to be added to the select list for order by
for (uint32_t i = 0; i < fieldVec.size(); i++)
{
SimpleColumn* sc = buildSimpleColumn(fieldVec[i], gwi);
if (!sc)
if (!rc)
{
string emsg = IDBErrorInfo::instance()->errorMsg(ERR_NON_SUPPORT_ORDER_BY);
gwi.parseErrorText = emsg;
setError(gwi.thd, ER_CHECK_NOT_IMPLEMENTED, emsg, gwi);
return ER_CHECK_NOT_IMPLEMENTED;
}
String str;
fieldVec[i]->print(&str, QT_INFINIDB_NO_QUOTE);
sc->alias(string(str.c_ptr()));
SRCP srcp(sc);
uint32_t j = 0;
for (; j < gwi.returnedCols.size(); j++)
{
if (sc->sameColumn(gwi.returnedCols[j].get()))
{
SimpleColumn* field = dynamic_cast<SimpleColumn*>(gwi.returnedCols[j].get());
if (field && field->alias() == sc->alias())
break;
}
}
if (j == gwi.returnedCols.size())
{
string fullname;
if (sel_cols_in_create.length() != 0)
sel_cols_in_create += ", ";
fullname = str.c_ptr();
sel_cols_in_create += fullname + " `" + escapeBackTick(fullname.c_str()) + "`";
gwi.returnedCols.push_back(srcp);
gwi.columnMap.insert(CalpontSelectExecutionPlan::ColumnMap::value_type(string(fieldVec[i]->field_name), srcp));
TABLE_LIST* tmp = (fieldVec[i]->cached_table ? fieldVec[i]->cached_table : 0);
gwi.tableMap[make_aliastable(sc->schemaName(), sc->tableName(), sc->tableAlias(), sc->isInfiniDB())] =
make_pair(1, tmp);
}
}
}
*/
if (ordercol->direction == ORDER::ORDER_ASC)
rc->asc(true);
else
rc->asc(false);
gwi.orderByCols.push_back(SRCP(rc));
}
// make sure columnmap, returnedcols and count(*) arg_list are not empty
TableMap::iterator tb_iter = gwi.tableMap.begin();