patch 4.0

unittest/sql/optimizer/cost_model_utils/apply_hg_model.py

@@ -0,0 +1,100 @@
+#!/bin/env python
+__author__ = 'dongyun.zdy'
+import getopt
+import sys
+import math
+
+
+def mg_model_form(args,
+                  params
+                  ):
+    (
+        Nrow_input,
+        Nrow_res,
+        Ncol_input,
+        Ncol_aggr,
+        Ncol_group
+    ) = args
+
+    (
+       Tstartup,
+       Trow_once,
+       Tres_once,
+       Taggr_prepare_result,
+       Taggr_process,
+       Tgroup_cmp_col,
+       Tcopy_col
+    ) = params
+
+    total_cost = Tstartup + Nrow_res * Tres_once + Nrow_input * Trow_once
+    #cost for judge group
+    total_cost += Nrow_input * Ncol_group * Tgroup_cmp_col
+
+    #cost for group related operation
+    total_cost += Nrow_res * (Ncol_input * Tcopy_col)
+    total_cost += Nrow_res * (Ncol_aggr * Taggr_prepare_result)
+
+    #cost for input row process
+    total_cost += Nrow_input * (Ncol_aggr * Taggr_process)
+
+    return total_cost
+
+
+
+
+def extract_info_from_line(line):
+    splited = line.split(",")
+    line_info = []
+    for item in splited:
+        line_info.append(float(item))
+    return line_info
+
+
+
+file_name = "get_total.data.prep"
+output_fit_res = False
+wrong_arg = False
+opts,args = getopt.getopt(sys.argv[1:],"i:o:m:")
+for op, value in opts:
+    if "-i" == op:
+        file_name = value
+    elif "-o" == op:
+        output_fit_res = True
+        out_file_name = value
+    elif "-m" == op:
+        model_file_name = value
+    else:
+        wrong_arg = True
+
+if wrong_arg:
+    print "wrong arg"
+    sys.exit(1)
+
+input_file = open(file_name, "r")
+model_file = open(model_file_name, "r")
+out_file = open(out_file_name, "w")
+
+
+line = model_file.readline()
+model_params = [float(p) for p in line.split(",")]
+
+
+for line in input_file:
+    case_param = extract_info_from_line(line)
+    args = (case_param[0],
+            case_param[5],
+            case_param[4],
+            case_param[2],
+            case_param[3])
+    time = case_param[6]
+    cost_val = mg_model_form(args, model_params)
+    percent = (cost_val - time) / time
+
+    new_line = ",".join([line.strip(),"\t" ,str(cost_val),"\t" , str(time),"\t\t" , str(percent * 100)])
+    new_line += "\n"
+    out_file.write(new_line)
+
+out_file.close()
+
+
+