the begginning

dbcon/execplan/tdriver13.cpp

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+/* 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);
+}
+
+