mariadb-columnstore-engine/dbcon/execplan/tdriver13.cpp

/* Copyright (C) 2014 InfiniDB, Inc.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; version 2 of
   the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA. */

#include <string>
#include <stdexcept>
#include <typeinfo>
using namespace std;

#include <cppunit/extensions/HelperMacros.h>

#include<sstream>
#include<exception>
#include<iostream>
#include <unistd.h>

#include "messagequeue.h"
#include "bytestream.h"
using namespace messageqcpp;

#include "calpontselectexecutionplan.h"
#include "simplefilter.h"
#include "simplecolumn.h"
#include "expressionparser.h"
#include "constantcolumn.h"
#include "treenode.h"
#include "operator.h"
#include "arithmeticcolumn.h"
#include "aggregatecolumn.h"
#include "selectfilter.h"
#include "existsfilter.h"
//#include "conditionfilter.h"

extern "C" char* cplus_demangle_with_style(const char*, int, int);
extern "C" void init_demangler(int, int, int);

using namespace execplan;

class ExecPlanTest : public CppUnit::TestFixture
{

    CPPUNIT_TEST_SUITE( ExecPlanTest );

    CPPUNIT_TEST( selectExecutionPlan_13 );

    CPPUNIT_TEST_SUITE_END();

private:
public:

    static void walkfnString(const ParseTree* n)
    {
        char* r;
        static bool is_init = false;
        const char* mname = typeid(*(n->data())).name();

        if (!is_init)
        {
            ::init_demangler(0, 0, 0);
            is_init = true;
        }

        r = ::cplus_demangle_with_style(mname, 7, 27);

        if (r != 0)
        {
            //cout << "mangle: " << mname << " demangle: " << r << endl;
            ::free(r);
        }

        if (typeid(*(n->data())) == typeid(SimpleFilter))
        {
            cout << "SimpleFilter: " << endl;
            const SimpleFilter* sf = dynamic_cast<SimpleFilter*>(n->data());
            const ReturnedColumn* lhs = sf->lhs();
            const ReturnedColumn* rhs = sf->rhs();
            const Operator* op = sf->op();
            cout << '\t' << lhs->data() << ' ' << op->data() << ' ' << rhs->data();
            cout << endl << "\t\t";

            if (typeid(*lhs) == typeid(SimpleColumn))
            {
                cout << "SimpleColumn: " << lhs->data() << " / ";
            }
            else if (typeid(*lhs) == typeid(ConstantColumn))
            {
                cout << "ConstantColumn: " << lhs->data() << " / ";
            }
            else
            {
                cout << "UNK: " << lhs->data() << " / ";
            }

            cout << "Operator: " << op->data() << " / ";

            if (typeid(*rhs) == typeid(SimpleColumn))
            {
                cout << "SimpleColumn: " << rhs->data();
            }
            else if (typeid(*rhs) == typeid(ConstantColumn))
            {
                cout << "ConstantColumn: " << rhs->data();
            }
            else
            {
                cout << "UNK: " << rhs->data();
            }
        }
        else if (typeid(*(n->data())) == typeid(Operator))
        {
            cout << "Operator: ";
            const Operator* op = dynamic_cast<Operator*>(n->data());
            cout << '\t' << op->data();
        }
        else
        {
            cout << mname << " -x-: ";
        }

        cout << endl;
    }

    void setUp()
    {
    }

    void tearDown()
    {
    }

    void selectExecutionPlan_13()
    {

        cout <<
             "SQL: \
select \
	c_count, \
	count(*) as custdist \
from \
	( \
		select \
			c_custkey, \
			count(o_orderkey) \
		from \
			customer left outer join orders on \
				c_custkey = o_custkey \
				and o_comment not like '%:1%:2%' \
		group by \
			c_custkey \
	) as c_orders (c_custkey, c_count) \
group by \
	c_count \
order by \
	custdist desc,\
	c_count desc;"
             << endl;

//x ------------The create view statement is being re-written as an inline view  ----- x/

        //This is the main query body for query 16
        CalpontSelectExecutionPlan* csep = new CalpontSelectExecutionPlan();

        // Create the Projection (returned columns)
        CalpontSelectExecutionPlan::ReturnedColumnList colList;
        SimpleColumn* c1 = new SimpleColumn("calpont.FROMTABLE.c_count");
        c1->tableAlias("c_orders");
        colList.push_back(c1);
        ArithmeticColumn* c2 = new ArithmeticColumn("count(ALL)");
        c2->alias("custdist");
        colList.push_back(c2);

        csep->returnedCols(colList);  // set Projection columns

        // Filter columns (Not needed for outer query)
        //CalpontSelectExecutionPlan::FilterTokenList csep_filterlist;

        /*   --------------- sub select begins here ----------------  */
        //Sub select filter
        CalpontSelectExecutionPlan* subcsep =
            new CalpontSelectExecutionPlan(CalpontSelectExecutionPlan::FROM);

        //subselect return column(s)
        CalpontSelectExecutionPlan::ReturnedColumnList  subColList;

        SimpleColumn* sc1 = new SimpleColumn ("tpch.customer.c_custkey");
        subColList.push_back(sc1);
        ArithmeticColumn* sc2 = new ArithmeticColumn ("count(tpch.orders.o_orderkey)");
        sc2->alias("c_count");
        subColList.push_back(sc2);
        // Append returned columns to subselect
        subcsep->returnedCols(subColList);

        //subselect Filters
        CalpontSelectExecutionPlan::FilterTokenList subcsep_filterlist;
        SimpleFilter* sf1 = new SimpleFilter ( new Operator("="),
                                               new SimpleColumn ("tpch.customer.c_custkey"),
                                               new SimpleColumn ("tpch.orders.o_custkey"));
        subcsep_filterlist.push_back(sf1);

        subcsep_filterlist.push_back(new Operator("and"));

        SimpleFilter* sf2 = new SimpleFilter ( new Operator("NOT LIKE"),
                                               new SimpleColumn ("tpch.orders.o_comment"),
                                               new ConstantColumn("%:1%:2%"));
        subcsep_filterlist.push_back(sf2);

        subcsep->filterTokenList(subcsep_filterlist); //Set Filter Columns

        // sub Group By List
        CalpontSelectExecutionPlan::GroupByColumnList subcsep_groupbyList;
        SimpleColumn* sg1 = new SimpleColumn("tpch.customer.c_custkey");
        subcsep_groupbyList.push_back(sg1);
        subcsep->groupByCols(subcsep_groupbyList);  //Set GroupBy columns
        subcsep->tableAlias("c_orders");

        // Draw the subselect tree.
        ParseTree* pt = const_cast<ParseTree*>(subcsep->filters());
        pt->drawTree("selectExecutionPlan_13_subquery.dot");

        // x --------------- sub select begins here ----------------  x/

        CalpontSelectExecutionPlan::SelectList subselectlist;
        subselectlist.push_back(subcsep);
        csep->subSelects(subselectlist);


        // Build Group By List
        CalpontSelectExecutionPlan::GroupByColumnList csep_groupbyList;
        //SimpleColumn *g1 = new SimpleColumn("calpont.FROMTABLE.c_count");
        SimpleColumn* g1 = new SimpleColumn(*c1);
        g1->alias("c_count");
        cout << "\n I am testing \n\n" << "g1=" << *g1 << "\n end of data\n" << endl;
        csep_groupbyList.push_back(g1);
        csep->groupByCols(csep_groupbyList);  //Set GroupBy columns

        // Order By List
        CalpontSelectExecutionPlan::OrderByColumnList csep_orderbyList;
        //ArithmeticColumn *o1 = new ArithmeticColumn("count(ALL)");
        ArithmeticColumn* o1 = new ArithmeticColumn(*c2);
        o1->alias("custdist");
        o1->asc(false);
        csep_orderbyList.push_back(o1);
        SimpleColumn* o2 = new SimpleColumn(*c1);
        o2->alias("c_count");
        o2->asc(false);
        csep_orderbyList.push_back(o2);
        csep->orderByCols(csep_orderbyList); //Set OrderBy columns

        //SimpleColumn *abc = new SimpleColumn(*c1);

        //filterList->walk(walkfnString); ??

        cout << "\nCalpont Execution Plan:" << endl;
        cout << *csep << endl;
        cout << " --- end of test 13 ---" << endl;

    }

};

CPPUNIT_TEST_SUITE_REGISTRATION( ExecPlanTest );

#include <cppunit/extensions/TestFactoryRegistry.h>
#include <cppunit/ui/text/TestRunner.h>

int main( int argc, char** argv)
{
    CppUnit::TextUi::TestRunner runner;
    CppUnit::TestFactoryRegistry& registry = CppUnit::TestFactoryRegistry::getRegistry();
    runner.addTest( registry.makeTest() );
    bool wasSuccessful = runner.run( "", false );
    return (wasSuccessful ? 0 : 1);
}