def getLowCostMRQ(self, stop, _run=True): global count if len(self.child_list) == 0: #if len(self.child_list) == 0 and self.isBottom(): print "FINDROOT_BEGIN" count = count + 1 #root_mrq = self.findRoot() #root_mrq.__printAll__() #root_mrq.postProcess() #if root_mrq.id == [1] and root_mrq.child_list[0].id == [2, 3, 4, 5, 6, 7, 8, 9]: # root_mrq.__printAll__() # codegen.genCode(root_mrq, "testquery") if count >= int(stop): root_mrq = self.findRoot() root_mrq.postProcess() #root_mrq.__printAll__() #op_list = codegen.genCode(root_mrq, "testquery") #op_id = [op.getID() for op in op_list] #print op_id codegen.run(root_mrq, "testquery", _run) exit(29) #return #if root_mrq.getMRQCost() < cost: # mrq = copyMRQ(root_mrq) # print "END" # exit(29) print "FINDROOT_END" return if count >= int(stop): return for child in self.child_list: child.getLowCostMRQ(stop, _run) if count >= int(stop): return new_op = None for i in range(1, 5): op1_child, op2_child = [], [] new_op = Op.merge(child, self, i, op1_child, op2_child) if new_op is not None: new_op.getLowCostMRQ(stop, _run) Op.detach(new_op, child, self, op1_child, op2_child)
import ast
import node
import schema
import util
import op
import codegen
import sys
import os
import config
if __name__ == "__main__":
pwd = os.getcwd()
_file = open("../test/10.xml", "r")
schema = "../test/tpch.schema"
pt = ast.astToQueryPlan(schema, _file)
_file.close()
mrq = node.planTreeToMRQ(pt)
if len(sys.argv) < 2:
print "./test.py [o/number] [r]"
exit(0)
_run = False
if len(sys.argv) == 3 and sys.argv[2] == "r":
_run = True
if sys.argv[1] == "o":
mrq.optimize()
mrq.postProcess()
filename = "testquery"
codegen.run(mrq, filename, _run)
else:
mrq.getLowCostMRQ(sys.argv[1], _run)
