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drizzled/sql_select.cc
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                       (qsort_cmp) sort_keyuse);
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    memset(&key_end, 0, sizeof(key_end)); /* Add for easy testing */
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    insert_dynamic(keyuse,(unsigned char*) &key_end);
 
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    keyuse->push_back(&key_end);
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    use= save_pos= dynamic_element(keyuse, 0, optimizer::KeyUse*);
 
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    use= save_pos= (optimizer::KeyUse*)keyuse->buffer;
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    prev= &key_end;
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    found_eq_constant= 0;
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    {
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*/
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void optimize_keyuse(Join *join, DYNAMIC_ARRAY *keyuse_array)
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{
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  optimizer::KeyUse *end,*keyuse= dynamic_element(keyuse_array, 
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                                                  0, 
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                                                  optimizer::KeyUse*);
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  for (end= keyuse+ keyuse_array->size() ; keyuse < end ; keyuse++)
 
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  optimizer::KeyUse* keyuse= (optimizer::KeyUse*)keyuse_array->buffer;
 
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  for (optimizer::KeyUse* end= keyuse+ keyuse_array->size() ; keyuse < end ; keyuse++)
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  {
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    table_map map;
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    /*