Exemplo n.º 1
0
    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;
    }  
Exemplo n.º 2
0
    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;
    }  
Exemplo n.º 3
0
    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;
    }