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);
}