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Viewing changes to drizzled/optimizer/cost_vector.h

  • Committer: Mark Atwood
  • Date: 2011-08-01 05:22:14 UTC
  • mfrom: (1919.3.53 drizzle_pbms)
  • Revision ID: me@mark.atwood.name-20110801052214-3wdsx3xgld6b5v4f
merge lp:~barry-leslie/drizzle/drizzle_pbms

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drizzled/optimizer/cost_vector.h
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#pragma once
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namespace drizzled {
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namespace optimizer {
 
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namespace drizzled
 
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{
 
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namespace optimizer
 
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{
 
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class CostVector
 
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{
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class CostVector 
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{
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public:
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  CostVector() :
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    io_count(0.0),
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    import_cost(0.0)
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  {}
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  double total_cost() const
 
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  double total_cost()
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  {
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    return IO_COEFF*io_count*avg_io_cost + CPU_COEFF * cpu_cost +
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      MEM_COEFF*mem_cost + IMPORT_COEFF*import_cost;