public List <Row> show()
{
bind(null);
// TBD: route to optimizer here
QueryOption queryOpt = new QueryOption();
physicPlan_ = logicPlan_.DirectToPhysical(queryOpt);
logicPlan_.ResolveColumnOrdinal(outputs_);
// actual execution
var finalplan = new PhysicCollect(physicPlan_);
physicPlan_ = finalplan;
var context = new ExecContext(queryOpt);
Console.WriteLine(physicPlan_.Explain());
finalplan.ValidateThis();
var code = finalplan.Open(context);
code += finalplan.Exec(null);
code += finalplan.Close();
return(finalplan.rows_);
}
static void Main(string[] args)
{
Catalog.Init();
string sql = "";
if (false)
{
JOBench.CreateTables();
sql = File.ReadAllText("../../../jobench/10a.sql");
goto doit;
}
if (false)
{
Tpch.CreateTables();
Tpch.LoadTables("0001");
//Tpch.CreateIndexes();
Tpch.AnalyzeTables();
sql = File.ReadAllText("../../../tpch/q20.sql");
goto doit;
}
if (false)
{
Tpcds.CreateTables();
Tpcds.LoadTables("tiny");
Tpcds.AnalyzeTables();
// 1, 2,3,7,10,
// long time: 4 bad plan
// 6: distinct not supported, causing wrong result
sql = File.ReadAllText("../../../tpcds/q7.sql");
goto doit;
}
doit:
sql = "select a2,b2,c2,d2 from ad, bd, cd, dd where a2=b2 and c2 = b2 and c2=d2 order by a2";
sql = "select count(*) from ast group by tumble(a0, interval '10' second)";
sql = "select round(a1, 10), count(*) from a group by round(a1, 10)";
sql = "select count(*) from a group by round(a1, 10)";
sql = "select count(*) from ast group by hop(a0, interval '5' second, interval '10' second)";
sql = "select round(a1, 10) from a group by a1;";
sql = "select abs(-a1*2), count(*) from a group by round(a1, 10);";
sql = "select abs(-a1*2), count(*) from a group by a1;";
sql = "select tumble_start(a0, interval '10' second), tumble_end(a0, interval '10' second), count(*) from ast group by tumble(a0, interval '10' second)";
var datetime = new DateTime();
datetime = DateTime.Now;
var stopWatch = new Stopwatch();
stopWatch.Start();
// query options might be conflicting or incomplete
Console.WriteLine(sql);
var a = RawParser.ParseSingleSqlStatement(sql);
ExplainOption.show_tablename_ = false;
a.queryOpt_.profile_.enabled_ = true;
a.queryOpt_.optimize_.enable_subquery_unnest_ = false;
a.queryOpt_.optimize_.remove_from_ = false;
a.queryOpt_.optimize_.use_memo_ = true;
a.queryOpt_.optimize_.enable_cte_plan_ = false;
a.queryOpt_.optimize_.use_codegen_ = false;
a.queryOpt_.optimize_.memo_disable_crossjoin_ = false;
a.queryOpt_.optimize_.memo_use_joinorder_solver_ = false;
a.queryOpt_.explain_.show_output_ = true;
a.queryOpt_.explain_.show_id_ = false;
a.queryOpt_.explain_.show_cost_ = a.queryOpt_.optimize_.use_memo_;
// -- Semantic analysis:
// - bind the query
a.queryOpt_.optimize_.ValidateOptions();
a.Bind(null);
// -- generate an initial plan
var rawplan = a.CreatePlan();
Console.WriteLine("***************** raw plan *************");
Console.WriteLine(rawplan.Explain());
// -- optimize the plan
PhysicNode phyplan = null;
if (a.queryOpt_.optimize_.use_memo_)
{
Console.WriteLine("***************** optimized plan *************");
var optplan = a.SubstitutionOptimize();
Console.WriteLine(optplan.Explain(a.queryOpt_.explain_));
a.optimizer_.InitRootPlan(a);
a.optimizer_.OptimizeRootPlan(a, null);
Console.WriteLine(a.optimizer_.PrintMemo());
phyplan = a.optimizer_.CopyOutOptimalPlan();
Console.WriteLine(a.optimizer_.PrintMemo());
Console.WriteLine("***************** Memo plan *************");
Console.WriteLine(phyplan.Explain(a.queryOpt_.explain_));
}
else
{
// -- optimize the plan
Console.WriteLine("-- optimized plan --");
var optplan = a.SubstitutionOptimize();
Console.WriteLine(optplan.Explain(a.queryOpt_.explain_));
// -- physical plan
Console.WriteLine("-- physical plan --");
phyplan = a.physicPlan_;
Console.WriteLine(phyplan.Explain(a.queryOpt_.explain_));
}
// -- output profile and query result
Console.WriteLine("-- profiling plan --");
var final = new PhysicCollect(phyplan);
a.physicPlan_ = final;
ExecContext context = a.CreateExecContext();
final.ValidateThis();
if (a is SelectStmt select)
{
select.OpenSubQueries(context);
}
var code = final.Open(context);
code += final.Exec(null);
code += final.Close();
if (a.queryOpt_.optimize_.use_codegen_)
{
CodeWriter.WriteLine(code);
Compiler.Run(Compiler.Compile(), a, context);
}
Console.WriteLine(phyplan.Explain(a.queryOpt_.explain_));
stopWatch.Stop();
Console.WriteLine("RunTime: " + stopWatch.Elapsed);
Console.ReadKey();
}
static void Main(string[] args)
{
Catalog.Init();
string sql = "";
if (args.Length != 0)
{
sql = args[0];
}
#pragma warning disable CS0162 // Unreachable code detected
// The warnings are annoying, so using a pragma to suppress them.
if (false)
{
JOBench.CreateTables();
var stats_fn = "../../../../jobench/statistics/jobench_stats";
Catalog.sysstat_.read_serialized_stats(stats_fn);
sql = File.ReadAllText("../../../../jobench/10a.sql");
goto doit;
}
if (false)
{
Tpch.CreateTables();
Tpch.LoadTables("0001");
//Tpch.CreateIndexes();
Tpch.AnalyzeTables();
sql = File.ReadAllText("../../../../tpch/q20.sql");
goto doit;
}
if (false)
{
//84
sql = File.ReadAllText("../../../../tpcds/q33.sql");
Tpcds.CreateTables();
Tpcds.LoadTables("tiny");
Tpcds.AnalyzeTables();
// long time: 4 bad plan
// 6: distinct not supported, causing wrong result
// q23, q33, q56, q60: in-subquery plan bug
// 10,11,13, 31, 38, 41, 48, 54, 66, 72, 74: too slow
goto doit;
}
#pragma warning restore CS0162 // Unreachable code detected
doit:
bool convMode = false;
// Application Arguments in Project properties seem to be
// effective only after rebuilding.
// This is a last ditch effort to be able to debug arbitrary
// statements without rebuilding the solution.
string inputFile = "";
if (sql.Length == 2 && sql == "-i")
{
convMode = true;
}
else if (sql.Length == 2 && sql.StartsWith("-f"))
{
inputFile = args[1];
}
else if (sql.Length == 0)
{
sql = "select * from a tablesample row (2);";
}
do
{
if (convMode == true || (sql.Length == 1 && sql.Equals("-")))
{
System.Console.Write("QSQL> ");
sql = System.Console.ReadLine();
System.Console.WriteLine(sql);
}
var datetime = new DateTime();
datetime = DateTime.Now;
var stopWatch = new Stopwatch();
stopWatch.Start();
if (inputFile.Length != 0)
{
// read the file and execute all statements in it.
RunSQLFromFile(inputFile);
goto done;
}
// query options might be conflicting or incomplete
Console.WriteLine(sql);
var a = RawParser.ParseSingleSqlStatement(sql);
ExplainOption.show_tablename_ = true;
a.queryOpt_.profile_.enabled_ = true;
a.queryOpt_.optimize_.enable_subquery_unnest_ = true;
a.queryOpt_.optimize_.remove_from_ = true;
a.queryOpt_.optimize_.use_memo_ = true;
a.queryOpt_.optimize_.enable_cte_plan_ = true;
a.queryOpt_.optimize_.use_codegen_ = false;
a.queryOpt_.optimize_.memo_disable_crossjoin_ = false;
a.queryOpt_.optimize_.memo_use_joinorder_solver_ = false;
a.queryOpt_.explain_.show_output_ = true;
a.queryOpt_.explain_.show_id_ = true;
a.queryOpt_.explain_.show_estCost_ = a.queryOpt_.optimize_.use_memo_;
a.queryOpt_.explain_.mode_ = ExplainMode.full;
// -- Semantic analysis:
// - bind the query
a.queryOpt_.optimize_.ValidateOptions();
if (!(a is SelectStmt))
{
SQLStatement.ExecSQLList(sql);
goto done;
}
a.Bind(null);
// -- generate an initial plan
var rawplan = a.CreatePlan();
Console.WriteLine("***************** raw plan *************");
Console.WriteLine(rawplan.Explain());
// -- optimize the plan
PhysicNode phyplan = null;
if (a.queryOpt_.optimize_.use_memo_)
{
Console.WriteLine("***************** optimized plan *************");
var optplan = a.SubstitutionOptimize();
Console.WriteLine(optplan.Explain(a.queryOpt_.explain_));
a.optimizer_ = new Optimizer(a);
a.optimizer_.ExploreRootPlan(a);
phyplan = a.optimizer_.CopyOutOptimalPlan();
Console.WriteLine(a.optimizer_.PrintMemo());
Console.WriteLine("***************** Memo plan *************");
Console.WriteLine(phyplan.Explain(a.queryOpt_.explain_));
}
else
{
// -- optimize the plan
Console.WriteLine("-- optimized plan --");
var optplan = a.SubstitutionOptimize();
Console.WriteLine(optplan.Explain(a.queryOpt_.explain_));
// -- physical plan
Console.WriteLine("-- physical plan --");
phyplan = a.physicPlan_;
Console.WriteLine(phyplan.Explain(a.queryOpt_.explain_));
}
// -- output profile and query result
Console.WriteLine("-- profiling plan --");
var final = new PhysicCollect(phyplan);
a.physicPlan_ = final;
ExecContext context = a.CreateExecContext();
final.ValidateThis();
if (a is SelectStmt select)
{
select.OpenSubQueries(context);
}
final.Open(context);
final.Exec(null);
final.Close();
if (a.queryOpt_.optimize_.use_codegen_)
{
CodeWriter.WriteLine(context.code_);
Compiler.Run(Compiler.Compile(), a, context);
}
Console.WriteLine(phyplan.Explain(a.queryOpt_.explain_));
done:
stopWatch.Stop();
Console.WriteLine("RunTime: " + stopWatch.Elapsed);
} while (convMode == true);
Console.ReadKey();
}
public static void Run(SQLStatement stmt, ExecContext context)
{
PhysicCollect PhysicCollect108 = stmt.physicPlan_.LocateNode("108") as PhysicCollect;
PhysicProfiling PhysicProfiling109 = stmt.physicPlan_.LocateNode("109") as PhysicProfiling;
LogicLimit LogicLimit109 = PhysicProfiling109.logic_ as LogicLimit;
var filter109 = LogicLimit109.filter_;
var output109 = LogicLimit109.output_;
PhysicLimit PhysicLimit110 = stmt.physicPlan_.LocateNode("110") as PhysicLimit;
LogicLimit LogicLimit110 = PhysicLimit110.logic_ as LogicLimit;
var filter110 = LogicLimit110.filter_;
var output110 = LogicLimit110.output_;
PhysicProfiling PhysicProfiling111 = stmt.physicPlan_.LocateNode("111") as PhysicProfiling;
LogicAgg LogicAgg111 = PhysicProfiling111.logic_ as LogicAgg;
var filter111 = LogicAgg111.filter_;
var output111 = LogicAgg111.output_;
PhysicHashAgg PhysicHashAgg112 = stmt.physicPlan_.LocateNode("112") as PhysicHashAgg;
LogicAgg LogicAgg112 = PhysicHashAgg112.logic_ as LogicAgg;
var filter112 = LogicAgg112.filter_;
var output112 = LogicAgg112.output_;
PhysicProfiling PhysicProfiling113 = stmt.physicPlan_.LocateNode("113") as PhysicProfiling;
LogicJoin LogicJoin113 = PhysicProfiling113.logic_ as LogicJoin;
var filter113 = LogicJoin113.filter_;
var output113 = LogicJoin113.output_;
PhysicHashJoin PhysicHashJoin114 = stmt.physicPlan_.LocateNode("114") as PhysicHashJoin;
LogicJoin LogicJoin114 = PhysicHashJoin114.logic_ as LogicJoin;
var filter114 = LogicJoin114.filter_;
var output114 = LogicJoin114.output_;
PhysicProfiling PhysicProfiling115 = stmt.physicPlan_.LocateNode("115") as PhysicProfiling;
LogicJoin LogicJoin115 = PhysicProfiling115.logic_ as LogicJoin;
var filter115 = LogicJoin115.filter_;
var output115 = LogicJoin115.output_;
PhysicHashJoin PhysicHashJoin116 = stmt.physicPlan_.LocateNode("116") as PhysicHashJoin;
LogicJoin LogicJoin116 = PhysicHashJoin116.logic_ as LogicJoin;
var filter116 = LogicJoin116.filter_;
var output116 = LogicJoin116.output_;
PhysicProfiling PhysicProfiling117 = stmt.physicPlan_.LocateNode("117") as PhysicProfiling;
LogicScanTable LogicScanTable117 = PhysicProfiling117.logic_ as LogicScanTable;
var filter117 = LogicScanTable117.filter_;
var output117 = LogicScanTable117.output_;
PhysicScanTable PhysicScanTablea = stmt.physicPlan_.LocateNode("a") as PhysicScanTable;
LogicScanTable LogicScanTablea = PhysicScanTablea.logic_ as LogicScanTable;
var filtera = LogicScanTablea.filter_;
var outputa = LogicScanTablea.output_;
PhysicProfiling PhysicProfiling118 = stmt.physicPlan_.LocateNode("118") as PhysicProfiling;
LogicScanTable LogicScanTable118 = PhysicProfiling118.logic_ as LogicScanTable;
var filter118 = LogicScanTable118.filter_;
var output118 = LogicScanTable118.output_;
PhysicScanTable PhysicScanTablec = stmt.physicPlan_.LocateNode("c") as PhysicScanTable;
LogicScanTable LogicScanTablec = PhysicScanTablec.logic_ as LogicScanTable;
var filterc = LogicScanTablec.filter_;
var outputc = LogicScanTablec.output_;
var hm116 = new Dictionary <KeyList, List <TaggedRow> >();
PhysicProfiling PhysicProfiling119 = stmt.physicPlan_.LocateNode("119") as PhysicProfiling;
LogicScanTable LogicScanTable119 = PhysicProfiling119.logic_ as LogicScanTable;
var filter119 = LogicScanTable119.filter_;
var output119 = LogicScanTable119.output_;
PhysicScanTable PhysicScanTableb = stmt.physicPlan_.LocateNode("b") as PhysicScanTable;
LogicScanTable LogicScanTableb = PhysicScanTableb.logic_ as LogicScanTable;
var filterb = LogicScanTableb.filter_;
var outputb = LogicScanTableb.output_;
var hm114 = new Dictionary <KeyList, List <TaggedRow> >();
var aggrcore112 = LogicAgg112.aggrFns_;
var hm112 = new Dictionary <KeyList, Row>();
var nrows110 = 0;
PhysicProfiling109.nloops_++;
PhysicProfiling111.nloops_++;
PhysicProfiling113.nloops_++;
PhysicProfiling115.nloops_++;
PhysicProfiling117.nloops_++;
var heapa = (LogicScanTablea.tabref_).Table().heap_.GetEnumerator();
for (;;)
{
Row ra = null;
if (context.stop_)
{
break;
}
if (heapa.MoveNext())
{
ra = heapa.Current;
}
else
{
break;
}
{
{
// projection on PhysicScanTablea: Output: a.a1[0],a.a2[1]
Row rproj = new Row(2);
rproj[0] = ra[0];
rproj[1] = ra[1];
ra = rproj;
}
PhysicProfiling117.nrows_++;
var r117 = ra;
var keys116 = KeyList.ComputeKeys(context, LogicJoin116.leftKeys_, r117);
if (hm116.TryGetValue(keys116, out List <TaggedRow> exist))
{
exist.Add(new TaggedRow(r117));
}
else
{
var rows = new List <TaggedRow>();
rows.Add(new TaggedRow(r117));
hm116.Add(keys116, rows);
}
}
}
if (hm116.Count == 0)
{
return;
}
PhysicProfiling118.nloops_++;
var heapc = (LogicScanTablec.tabref_).Table().heap_.GetEnumerator();
for (;;)
{
Row rc = null;
if (context.stop_)
{
break;
}
if (heapc.MoveNext())
{
rc = heapc.Current;
}
else
{
break;
}
{
{
// projection on PhysicScanTablec: Output: c.c2[1]
Row rproj = new Row(1);
rproj[0] = rc[1];
rc = rproj;
}
PhysicProfiling118.nrows_++;
var r118 = rc;
if (context.stop_)
{
return;
}
Row fakel116 = new Row(2);
Row r116 = new Row(fakel116, r118);
var keys116 = KeyList.ComputeKeys(context, LogicJoin116.rightKeys_, r116);
bool foundOneMatch116 = false;
if (hm116.TryGetValue(keys116, out List <TaggedRow> exist116))
{
foundOneMatch116 = true;
foreach (var v116 in exist116)
{
r116 = new Row(v116.row_, r118);
{
// projection on PhysicHashJoin116: Output: a.a1[0],a.a2[1]
Row rproj = new Row(2);
rproj[0] = r116[0];
rproj[1] = r116[1];
r116 = rproj;
}
PhysicProfiling115.nrows_++;
var r115 = r116;
var keys114 = KeyList.ComputeKeys(context, LogicJoin114.leftKeys_, r115);
if (hm114.TryGetValue(keys114, out List <TaggedRow> exist))
{
exist.Add(new TaggedRow(r115));
}
else
{
var rows = new List <TaggedRow>();
rows.Add(new TaggedRow(r115));
hm114.Add(keys114, rows);
}
}
}
else
{
// no match for antisemi
}
}
}
if (hm114.Count == 0)
{
return;
}
PhysicProfiling119.nloops_++;
var heapb = (LogicScanTableb.tabref_).Table().heap_.GetEnumerator();
for (;;)
{
Row rb = null;
if (context.stop_)
{
break;
}
if (heapb.MoveNext())
{
rb = heapb.Current;
}
else
{
break;
}
{
{
// projection on PhysicScanTableb: Output: b.b1[0]
Row rproj = new Row(1);
rproj[0] = rb[0];
rb = rproj;
}
PhysicProfiling119.nrows_++;
var r119 = rb;
if (context.stop_)
{
return;
}
Row fakel114 = new Row(2);
Row r114 = new Row(fakel114, r119);
var keys114 = KeyList.ComputeKeys(context, LogicJoin114.rightKeys_, r114);
bool foundOneMatch114 = false;
if (hm114.TryGetValue(keys114, out List <TaggedRow> exist114))
{
foundOneMatch114 = true;
foreach (var v114 in exist114)
{
r114 = new Row(v114.row_, r119);
{
// projection on PhysicHashJoin114: Output: a.a1[0],a.a2[1]
Row rproj = new Row(2);
rproj[0] = r114[0];
rproj[1] = r114[1];
r114 = rproj;
}
PhysicProfiling113.nrows_++;
var r113 = r114;
var keys = KeyList.ComputeKeys(context, LogicAgg112.keys_, r113);
if (hm112.TryGetValue(keys, out Row exist))
{
for (int i = 0; i < 1; i++)
{
var old = exist[i];
exist[i] = aggrcore112[i].Accum(context, old, r113);
}
}
else
{
hm112.Add(keys, PhysicHashAgg112.AggrCoreToRow(r113));
exist = hm112[keys];
for (int i = 0; i < 1; i++)
{
exist[i] = aggrcore112[i].Init(context, r113);
}
}
}
}
else
{
// no match for antisemi
}
}
}
foreach (var v112 in hm112)
{
if (context.stop_)
{
break;
}
var keys112 = v112.Key;
Row aggvals112 = v112.Value;
for (int i = 0; i < 1; i++)
{
aggvals112[i] = aggrcore112[i].Finalize(context, aggvals112[i]);
}
var r112 = new Row(keys112, aggvals112);
if (true || LogicAgg112.having_.Exec(context, r112) is true)
{
{
// projection on PhysicHashAgg112: Output: {a.a2}[0]*2,{count(a.a1)}[1],repeat('a',{a.a2}[0])
Row rproj = new Row(3);
rproj[0] = ((dynamic)r112[0] * (dynamic)2);
rproj[1] = r112[1];
rproj[2] = ExprSearch.Locate("74").Exec(context, r112) /*repeat('a',{a.a2}[0])*/;
r112 = rproj;
}
PhysicProfiling111.nrows_++;
var r111 = r112;
nrows110++;
Debug.Assert(nrows110 <= 2);
if (nrows110 == 2)
{
context.stop_ = true;
}
var r110 = r111;
PhysicProfiling109.nrows_++;
var r109 = r110;
Row newr = new Row(3);
newr[0] = r109[0];
newr[1] = r109[1];
newr[2] = r109[2];
PhysicCollect108.rows_.Add(newr);
Console.WriteLine(newr);
}
}
}
static void Main(string[] args)
{
Catalog.Init();
string sql = "";
//TestTpcds_LoadData();
if (false)
{
JOBench.CreateTables();
sql = File.ReadAllText("../../../jobench/10a.sql");
goto doit;
}
if (false)
{
Tpch.CreateTables();
Tpch.LoadTables("0001");
//Tpch.CreateIndexes();
Tpch.AnalyzeTables();
sql = File.ReadAllText("../../../tpch/q20.sql");
goto doit;
}
if (true)
{
Tpcds.CreateTables();
//Tpcds.LoadTables("tiny");
//Tpcds.AnalyzeTables();
// 1, 2,3,7,10,
// long time: 4 bad plan
// 6: distinct not supported, causing wrong result
sql = File.ReadAllText("../../../tpcds/q7.sql");
goto doit;
}
doit:
sql = "with cte as (select * from d) select * from cte where d1=1;";
sql = "with cte as (select * from a) select cte1.a1, cte2.a2 from cte cte1, cte cte2 where cte2.a3<3"; // ok
sql = "with cte as (select * from a) select * from cte cte1, cte cte2 where cte1.a2=cte2.a3 and cte1.a1> 0 order by 1;";
sql = "select ab.a1, cd.c1 from (select * from a join b on a1=b1) ab , (select * from c join d on c1=d1) cd where ab.a1=cd.c1";
sql = "select * from (select avg(a2) from a join b on a1=b1) a (a1) join b on a1=b1;";
sql = "with cte as (select * from a join b on a1=b1 join c on a2=c2) select * from cte cte1, cte cte2;"; // ok
sql = "with cte as (select count(*) from a join b on a1=b1) select * from cte cte1;"; // ok
sql = "with cte as (select count(*) from a join b on a1=b1) select * from cte cte1, cte cte2;";
sql = "with cte as (select * from d where d1=1) select * from cte cte1, cte cte2;";
sql = "with cte as (select * from a where a1=1) select * from cte cte1, cte cte2;";
var stopWatch = new Stopwatch();
stopWatch.Start();
Console.WriteLine(sql);
var a = RawParser.ParseSingleSqlStatement(sql);
a.queryOpt_.profile_.enabled_ = true;
a.queryOpt_.optimize_.enable_subquery_unnest_ = true;
a.queryOpt_.optimize_.remove_from_ = false;
a.queryOpt_.optimize_.use_memo_ = true;
a.queryOpt_.optimize_.enable_cte_plan_ = false;
a.queryOpt_.optimize_.use_codegen_ = false;
//a.queryOpt_.optimize_.memo_disable_crossjoin = false;
//a.queryOpt_.optimize_.use_joinorder_solver = true;
// -- Semantic analysis:
// - bind the query
a.queryOpt_.optimize_.ValidateOptions();
a.Bind(null);
// -- generate an initial plan
ExplainOption.show_tablename_ = false;
a.queryOpt_.explain_.show_output_ = false;
a.queryOpt_.explain_.show_cost_ = a.queryOpt_.optimize_.use_memo_;
var rawplan = a.CreatePlan();
Console.WriteLine("***************** raw plan *************");
Console.WriteLine(rawplan.Explain(0));
physic.PhysicNode phyplan = null;
if (a.queryOpt_.optimize_.use_memo_)
{
Console.WriteLine("***************** optimized plan *************");
var optplan = a.SubstitutionOptimize();
Console.WriteLine(optplan.Explain(0, a.queryOpt_.explain_));
a.optimizer_.InitRootPlan(a);
a.optimizer_.OptimizeRootPlan(a, null);
Console.WriteLine(a.optimizer_.PrintMemo());
phyplan = a.optimizer_.CopyOutOptimalPlan();
Console.WriteLine(a.optimizer_.PrintMemo());
Console.WriteLine("***************** Memo plan *************");
Console.WriteLine(phyplan.Explain(0, a.queryOpt_.explain_));
}
else
{
// -- optimize the plan
Console.WriteLine("-- optimized plan --");
var optplan = a.SubstitutionOptimize();
Console.WriteLine(optplan.Explain(0, a.queryOpt_.explain_));
// -- physical plan
Console.WriteLine("-- physical plan --");
phyplan = a.physicPlan_;
Console.WriteLine(phyplan.Explain(0, a.queryOpt_.explain_));
}
Console.WriteLine("-- profiling plan --");
var final = new PhysicCollect(phyplan);
a.physicPlan_ = final;
var context = new ExecContext(a.queryOpt_);
final.ValidateThis();
if (a is SelectStmt select)
{
select.OpenSubQueries(context);
}
var code = final.Open(context);
code += final.Exec(null);
code += final.Close();
if (a.queryOpt_.optimize_.use_codegen_)
{
CodeWriter.WriteLine(code);
Compiler.Run(Compiler.Compile(), a, context);
}
Console.WriteLine(phyplan.Explain(0, a.queryOpt_.explain_));
stopWatch.Stop();
Console.WriteLine("RunTime: " + stopWatch.Elapsed);
Console.ReadKey();
}