void Q1() {
string sql = "\
select\
c_custkey,\
c_name,\
sum(l_extendedprice * (1 - l_discount)) as revenue,\
c_acctbal,\
n_name,\
c_address,\
c_phone,\
c_comment\
from\
customer,\
orders,\
lineitem,\
nation\
where\
c_custkey = o_custkey\
and l_orderkey = o_orderkey\
and o_orderdate >= date ':1'\
and o_orderdate < date ':1' + interval '3' month\
and l_returnflag = 'R'\
and c_nationkey = n_nationkey\
group by\
c_custkey,\
c_name,\
c_acctbal,\
c_phone,\
n_name,\
c_address,\
c_comment\
order by\
revenue desc;";
CalpontSelectExecutionPlan csep;
// Returned columns
CalpontSelectExecutionPlan::ReturnedColumnList returnedColumnList;
SimpleColumn *c1 = new SimpleColumn("tpch.customer.l_returnflag");
returnedColumnList.push_back(c1);
SimpleColumn *c2 = new SimpleColumn("tpch.customer.c_name");
returnedColumnList.push_back(c2);
ArithmeticColumn *c3 = new ArithmeticColumn("sum(tpch.lineitem.l_extendedprice*(1-tpch.lineitem.l_discount))");
c3->alias("revenue");
returnedColumnList.push_back(c3);
SimpleColumn *c4 = new SimpleColumn("tpch.customer.c_acctbal");
returnedColumnList.push_back(c4);
SimpleColumn *c5 = new SimpleColumn("tpch.nation.n_name");
returnedColumnList.push_back(c5);
SimpleColumn *c6 = new SimpleColumn("tpch.customer.c_address");
returnedColumnList.push_back(c6);
SimpleColumn *c7 = new SimpleColumn("tpch.customer.c_phone");
returnedColumnList.push_back(c7);
SimpleColumn *c8 = new SimpleColumn("tpch.costomer.c_comment");
returnedColumnList.push_back(c8);
csep.returnedCols(returnedColumnList);
// Filters
CalpontSelectExecutionPlan::FilterTokenList filterTokenList;
SimpleFilter *f1 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.customer.c_custkey"),
new SimpleColumn("tpch.orders.o_custkey"));
filterTokenList.push_back(f1);
filterTokenList.push_back( new Operator ("and"));
SimpleFilter *f2 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.lineitem.l_orderkey"),
new SimpleColumn("tpch.orders.o_orderkey"));
filterTokenList.push_back(f2);
filterTokenList.push_back( new Operator ("and"));
SimpleFilter *f3 = new SimpleFilter (new Operator(">="),
new SimpleColumn("tpch.orders.o_orderdate"),
new ArithmeticColumn("date(':1')"));
filterTokenList.push_back(f3);
filterTokenList.push_back( new Operator ("and"));
SimpleFilter *f4 = new SimpleFilter (new Operator("<"),
new SimpleColumn("tpch.orders.o_orderdate"),
new ArithmeticColumn("date(':1') + interval ('3', month)"));
filterTokenList.push_back(f4);
filterTokenList.push_back( new Operator ("and"));
SimpleFilter *f5 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.lineitem.l_returnflag"),
new ConstantColumn("R"));
filterTokenList.push_back(f5);
filterTokenList.push_back( new Operator ("and"));
SimpleFilter *f6 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.customer.c_nationkey"),
new SimpleColumn("tpch.nation.n_nationkey"));
filterTokenList.push_back(f6);
csep.filterTokenList(filterTokenList);
ParseTree *pt = const_cast<ParseTree*>(csep.filters());
pt->drawTree ("q10.dot");
// Group by
CalpontSelectExecutionPlan::GroupByColumnList groupByList;
groupByList.push_back(c1->clone());
groupByList.push_back(c2->clone());
groupByList.push_back(c4->clone());
groupByList.push_back(c7->clone());
groupByList.push_back(c5->clone());
groupByList.push_back(c6->clone());
groupByList.push_back(c8->clone());
csep.groupByCols (groupByList);
// Order by
CalpontSelectExecutionPlan::OrderByColumnList orderByList;
ArithmeticColumn *o1 = new ArithmeticColumn(*c3);
o1->asc(false);
orderByList.push_back(o1);
csep.orderByCols(orderByList);
cout << csep;
}
ostream &operator<< (ostream &output, const CalpontSelectExecutionPlan &cep)
{
output << ">SELECT " ;
if (cep.distinct())
output << "DISTINCT ";
output << "limit: " << cep.limitStart() << " - " << cep.limitNum() << endl;
switch (cep.location())
{
case CalpontSelectExecutionPlan::MAIN:
output << "MAIN" << endl;
break;
case CalpontSelectExecutionPlan::FROM:
output << "FROM" << endl;
break;
case CalpontSelectExecutionPlan::WHERE:
output << "WHERE" << endl;
break;
case CalpontSelectExecutionPlan::HAVING:
output << "HAVING" << endl;
break;
}
// Returned Column
CalpontSelectExecutionPlan::ReturnedColumnList retCols = cep.returnedCols();
output << ">>Returned Columns" << endl;
uint seq = 0;
for (unsigned int i = 0; i < retCols.size(); i++)
{
output << *retCols[i] << endl;
if (retCols[i]->colSource() & SELECT_SUB)
{
output << "select sub -- " << endl;
CalpontSelectExecutionPlan *plan = dynamic_cast<CalpontSelectExecutionPlan*>(cep.fSelectSubList[seq++].get());
if (plan)
output << "{" << *plan << "}" << endl;
}
}
// From Clause
CalpontSelectExecutionPlan::TableList tables = cep.tableList();
output << ">>From Tables" << endl;
seq = 0;
for (unsigned int i = 0; i < tables.size(); i++)
{
// derived table
if (tables[i].schema.length() == 0 && tables[i].table.length() == 0)
{
output << "derived table - " << tables[i].alias << endl;
CalpontSelectExecutionPlan *plan = dynamic_cast<CalpontSelectExecutionPlan*>(cep.fDerivedTableList[seq++].get());
if (plan)
output << "{" << *plan << "}" << endl;
}
else
{
output << tables[i] << endl;
}
}
// Filters
output << ">>Filters" << endl;
if (cep.filters() != 0)
cep.filters()->walk (ParseTree::print, output);
else
output << "empty filter tree" << endl;
// Group by columns
CalpontSelectExecutionPlan::GroupByColumnList groupByCols = cep.groupByCols();
if (groupByCols.size() > 0)
{
output << ">>Group By Columns" << endl;
for (unsigned int i = 0; i < groupByCols.size(); i++)
output << *groupByCols[i] << endl;
}
// Having
if (cep.having() != 0)
{
output << ">>Having" << endl;
cep.having()->walk (ParseTree::print, output);
}
// Order by columns
CalpontSelectExecutionPlan::OrderByColumnList orderByCols = cep.orderByCols();
if (orderByCols.size() > 0)
{
output << ">>Order By Columns" << endl;
for (unsigned int i = 0; i < orderByCols.size(); i++)
output << *orderByCols[i] << endl;
}
output << "SessionID: " << cep.fSessionID << endl;
output << "TxnID: " << cep.fTxnID << endl;
output << "VerID: " << cep.fVerID << endl;
output << "TraceFlags: " << cep.fTraceFlags << endl;
output << "StatementID: " << cep.fStatementID << endl;
output << "DistUnionNum: " << (int)cep.fDistinctUnionNum << endl;
output << "Limit: " << cep.fLimitStart << " - " << cep.fLimitNum << endl;
output << "String table threshold: " << cep.fStringTableThreshold << endl;
output << "--- Column Map ---" << endl;
CalpontSelectExecutionPlan::ColumnMap::const_iterator iter;
for (iter = cep.columnMap().begin(); iter != cep.columnMap().end(); iter++)
output << (*iter).first << " : " << (*iter).second << endl;
return output;
}
void Q1() {
string sql = "\
select\
supp_nation,\
cust_nation,\
l_year,\
sum(volume) as revenue\
from\
(\
select\
n1.n_name as supp_nation,\
n2.n_name as cust_nation,\
extract(year from l_shipdate) as l_year,\
l_extendedprice * (1 - l_discount) as volume\
from\
supplier,\
lineitem,\
orders,\
customer,\
nation n1,\
nation n2\
where\
s_suppkey = l_suppkey\
and o_orderkey = l_orderkey\
and c_custkey = o_custkey\
and s_nationkey = n1.n_nationkey\
and c_nationkey = n2.n_nationkey\
and (\
(n1.n_name = ':1' and n2.n_name = ':2')\
or (n1.n_name = ':2' and n2.n_name = ':1')\
)\
and l_shipdate between date '1995-01-01' and date '1996-12-31'\
) as shipping\
group by\
supp_nation,\
cust_nation,\
l_year\
order by\
supp_nation,\
cust_nation,\
l_year;";
CalpontSelectExecutionPlan csep;
// Returned columns
CalpontSelectExecutionPlan::ReturnedColumnList returnedColumnList;
// these columns are from the temp table of FROM clause.
// I hereby give schema name "calpont", table name "FROMTABLE",
// and alias name "shipping"
SimpleColumn *c1 = new SimpleColumn("calpont.FROMTABLE.supp_nation");
c1->tableAlias ("shipping");
returnedColumnList.push_back(c1);
SimpleColumn *c2 = new SimpleColumn("calpont.FROMTABLE.cust_nation");
c2->tableAlias ("shipping");
returnedColumnList.push_back(c2);
SimpleColumn *c3 = new SimpleColumn("tpch.lineitem.l_year");
returnedColumnList.push_back(c3);
ArithmeticColumn *c4 = new ArithmeticColumn("sum(volumn)");
c4->alias("revenue");
returnedColumnList.push_back(c4);
csep.returnedCols(returnedColumnList);
// from subselect
CalpontSelectExecutionPlan *subsep =
new CalpontSelectExecutionPlan(CalpontSelectExecutionPlan::FROM);
// subselect returned columns
CalpontSelectExecutionPlan::ReturnedColumnList subReturnedColList;
SimpleColumn *sc1 = new SimpleColumn("tpch.nation.n_name");
sc1->alias ("supp_nation");
sc1->tableAlias ("n1");
subReturnedColList.push_back(sc1);
SimpleColumn *sc2 = new SimpleColumn("tpch.nation.n_name");
sc1->alias ("cust_nation");
sc1->tableAlias ("n2");
subReturnedColList.push_back(sc2);
ArithmeticColumn *sc3 = new ArithmeticColumn("extract(year from tpch.lineitem.l_shipdate)");
sc3->alias("l_year");
subReturnedColList.push_back(sc3);
ArithmeticColumn *sc4 = new ArithmeticColumn("tpch.lineitem.l_extendeprice * (1-tpch.lineitem.l_discount)");
sc3->alias("volume");
subReturnedColList.push_back(sc4);
subsep->returnedCols(subReturnedColList);
// subselect filters
CalpontSelectExecutionPlan::FilterTokenList subFilterTokenList;
SimpleFilter *sf1 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.supplier.s_suppkey"),
new SimpleColumn("tpch.lineitem.l_suppkey"));
subFilterTokenList.push_back(sf1);
subFilterTokenList.push_back(new Operator("and"));
SimpleFilter *sf2 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.orders.o_orderkey"),
new SimpleColumn("tpch.lineitem.l_orderkey"));
subFilterTokenList.push_back(sf2);
subFilterTokenList.push_back(new Operator("and"));
SimpleFilter *sf3 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.customer.c_custkey"),
new SimpleColumn("tpch.orders.o_custkey"));
subFilterTokenList.push_back(sf3);
subFilterTokenList.push_back(new Operator("and"));
SimpleColumn *n1 = new SimpleColumn ("tpch.nation.n_nationkey");
n1->tableAlias("n1");
SimpleFilter *sf4 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.supplier.s_nationkey"),
n1);
subFilterTokenList.push_back(sf4);
subFilterTokenList.push_back(new Operator("and"));
SimpleColumn *n2 = new SimpleColumn ("tpch.nation.n_nationkey");
n2->tableAlias("n2");
SimpleFilter *sf5 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.customer.c_nationkey"),
n2);
subFilterTokenList.push_back(sf5);
subFilterTokenList.push_back(new Operator("and"));
// ((n1.n_name = ':1' and n2.n_name = ':2')
// or (n1.n_name = ':2' and n2.n_name = ':1'))
subFilterTokenList.push_back(new Operator("("));
subFilterTokenList.push_back(new Operator("("));
SimpleColumn *n1_name = new SimpleColumn("tpch.nation.n_name");
n1_name->tableAlias ("n1");
SimpleFilter *sf6 = new SimpleFilter ( new Operator("="),
n1_name,
new ConstantColumn (":1"));
subFilterTokenList.push_back(sf6);
subFilterTokenList.push_back(new Operator("and"));
SimpleColumn *n2_name = new SimpleColumn("tpch.nation.n_name");
n1_name->tableAlias ("n2");
SimpleFilter *sf7 = new SimpleFilter ( new Operator("="),
n2_name,
new ConstantColumn (":2"));
subFilterTokenList.push_back(sf7);
subFilterTokenList.push_back(new Operator (")"));
subFilterTokenList.push_back(new Operator("or"));
subFilterTokenList.push_back(new Operator("("));
SimpleFilter *sf8 = new SimpleFilter ( new Operator("="),
new SimpleColumn(*n1_name),
new ConstantColumn (":2"));
subFilterTokenList.push_back(sf8);
subFilterTokenList.push_back(new Operator("and"));
SimpleFilter *sf9 = new SimpleFilter ( new Operator("="),
new SimpleColumn(*n2_name),
new ConstantColumn (":1"));
subFilterTokenList.push_back(sf9);
subFilterTokenList.push_back(new Operator (")"));
subFilterTokenList.push_back(new Operator (")"));
subFilterTokenList.push_back(new Operator("and"));
SimpleFilter *sf10 = new SimpleFilter (new Operator (">="),
new SimpleColumn ("tpch.lineitem.l_shipdate"),
new ConstantColumn ("1995-01-01"));
subFilterTokenList.push_back(sf10);
subFilterTokenList.push_back(new Operator("and"));
SimpleFilter *sf11 = new SimpleFilter (new Operator ("<="),
new SimpleColumn ("tpch.lineitem.l_shipdate"),
new ConstantColumn ("1995-01-06"));
subFilterTokenList.push_back(sf11);
subsep->filterTokenList(subFilterTokenList);
// end of subselect in FROM. push FROM subselect to selectList
// NOTE: only FROM subselect needs to be pushed into selectList.
// Subselects in WHERE or HAVING clause are in where or having
// filter parse tree. It may make more sense to change the member
// fSelectList of CSEP class to fFromSubSelect (type CSEP*)
CalpontSelectExecutionPlan::SelectList fromSubSelectList;
fromSubSelectList.push_back(subsep);
csep.subSelects(fromSubSelectList);
ParseTree* pt = const_cast<ParseTree*>(subsep->filters());
pt->drawTree("q7.dot");
// Group by
CalpontSelectExecutionPlan::GroupByColumnList groupByList;
SimpleColumn *g1 = new SimpleColumn (*c1);
groupByList.push_back (g1);
SimpleColumn *g2 = new SimpleColumn (*c2);
groupByList.push_back (g2);
SimpleColumn *g3 = new SimpleColumn (*c3);
groupByList.push_back (g3);
csep.groupByCols(groupByList);
// Order by
CalpontSelectExecutionPlan::OrderByColumnList orderByList;
SimpleColumn *o1 = new SimpleColumn(*c1);
orderByList.push_back(o1);
SimpleColumn *o2 = new SimpleColumn(*c2);
orderByList.push_back(o2);
SimpleColumn *o3 = new SimpleColumn(*c3);
orderByList.push_back(o3);
csep.orderByCols(orderByList);
cout << csep;
}
void Q1() {
string sql = "\
select\
l_orderkey,\
sum(l_extendedprice * (1 - l_discount)) as revenue,\
o_orderdate,\
o_shippriority\
from\
customer,\
orders,\
lineitem\
where\
c_mktsegment = ':1'\
and c_custkey = o_custkey\
and l_orderkey = o_orderkey\
and o_orderdate < date ':2'\
and l_shipdate > date ':2'\
group by\
l_orderkey,\
o_orderdate,\
o_shippriority\
order by\
revenue desc,\
o_orderdate;";
CalpontSelectExecutionPlan csep;
// Returned columns
CalpontSelectExecutionPlan::ReturnedColumnList returnedColumnList;
SimpleColumn *c1 = new SimpleColumn("tpch.lineitem.l_orderkey");
returnedColumnList.push_back(c1);
ArithmeticColumn *c2 = new ArithmeticColumn
("sum(tpch.lineitem.l_extendedprice * (1 - tpch.lineitem.l_discount))");
c2->alias("revenue");
returnedColumnList.push_back(c2);
SimpleColumn *c3 = new SimpleColumn("tpch.orders.o_orderdate");
returnedColumnList.push_back(c3);
SimpleColumn *c4 = new SimpleColumn("tpch.orders.o_shippriority");
returnedColumnList.push_back(c4);
csep.returnedCols(returnedColumnList);
// Filters
CalpontSelectExecutionPlan::FilterTokenList filterTokenList;
SimpleFilter *f1 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.customer.c_mktsegment"),
new ConstantColumn(":1"));
filterTokenList.push_back(f1);
filterTokenList.push_back(new Operator("and"));
SimpleFilter *f2 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.customer.c_custkey"),
new SimpleColumn("tpch.orders.o_custkey"));
filterTokenList.push_back(f2);
filterTokenList.push_back(new Operator("and"));
SimpleFilter *f3 = new SimpleFilter (new Operator("="),
new SimpleColumn("tpch.lineitem.l_orderkey"),
new SimpleColumn("tpch.orders.o_orderkey"));
filterTokenList.push_back(f3);
filterTokenList.push_back(new Operator("and"));
SimpleFilter *f4 = new SimpleFilter (new Operator("<"),
new SimpleColumn("tpch.orders.o_orderdate"),
new ArithmeticColumn("date(':2')"));
filterTokenList.push_back(f4);
filterTokenList.push_back(new Operator("and"));
SimpleFilter *f5 = new SimpleFilter (new Operator(">"),
new SimpleColumn("tpch.lineitem.l_shipdate"),
new ArithmeticColumn("date(':2')"));
filterTokenList.push_back(f5);
csep.filterTokenList(filterTokenList);
ParseTree* pt = const_cast<ParseTree*>(csep.filters());
pt->drawTree("q3.dot");
// Group by
CalpontSelectExecutionPlan::GroupByColumnList groupByList;
SimpleColumn *g1 = new SimpleColumn(*c1);
groupByList.push_back(g1);
SimpleColumn *g2 = new SimpleColumn(*c3);
groupByList.push_back(g2);
SimpleColumn *g3 = new SimpleColumn(*c4);
groupByList.push_back(g3);
csep.groupByCols(groupByList);
// Order by
CalpontSelectExecutionPlan::OrderByColumnList orderByList;
//ArithmeticColumn *test = new ArithmeticColumn("a+b");
ArithmeticColumn *o1 = new ArithmeticColumn(*c2);
o1->asc(false);
orderByList.push_back(o1);
SimpleColumn *o2 = new SimpleColumn(*c3);
orderByList.push_back(o2);
csep.orderByCols(orderByList);
cout << csep;
}