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  • Committer: Brian Aker
  • Date: 2008-08-18 22:20:43 UTC
  • mto: This revision was merged to the branch mainline in revision 352.
  • Revision ID: brian@tangent.org-20080818222043-et6zf93ogrgx1cz9
Refactoring table.h

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drizzled/opt_sum.cc
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    #                   Multiplication of number of rows in all tables
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*/
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static uint64_t get_exact_record_count(TABLE_LIST *tables)
 
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static uint64_t get_exact_record_count(TableList *tables)
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{
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  uint64_t count= 1;
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  for (TABLE_LIST *tl= tables; tl; tl= tl->next_leaf)
 
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  for (TableList *tl= tables; tl; tl= tl->next_leaf)
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  {
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    ha_rows tmp= tl->table->file->records();
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    if ((tmp == HA_POS_ERROR))
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    HA_ERR_... if a deadlock or a lock wait timeout happens, for example
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*/
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int opt_sum_query(TABLE_LIST *tables, List<Item> &all_fields,COND *conds)
 
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int opt_sum_query(TableList *tables, List<Item> &all_fields,COND *conds)
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{
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  List_iterator_fast<Item> it(all_fields);
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  int const_result= 1;
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    Analyze outer join dependencies, and, if possible, compute the number
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    of returned rows.
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  */
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  for (TABLE_LIST *tl= tables; tl; tl= tl->next_leaf)
 
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  for (TableList *tl= tables; tl; tl= tl->next_leaf)
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  {
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    TABLE_LIST *embedded;
 
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    TableList *embedded;
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    for (embedded= tl ; embedded; embedded= embedded->embedding)
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    {
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      if (embedded->on_expr)