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  • Committer: Jay Pipes
  • Date: 2009-08-03 14:23:22 UTC
  • mfrom: (1039.2.68 staging)
  • mto: This revision was merged to the branch mainline in revision 1078.
  • Revision ID: jpipes@serialcoder-20090803142322-1g67h7su9mocg9ig
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drizzled/join.h
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  uint32_t ref_pointer_array_size; ///< size of above in bytes
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  const char *zero_result_cause; ///< not 0 if exec must return zero result
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  /* Descriptions of temporary tables used to weed-out semi-join duplicates */
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  SemiJoinTable  *sj_tmp_tables;
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  table_map cur_emb_sj_nests;
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  /*
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    storage for caching buffers allocated during query execution.
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    These buffers allocations need to be cached as the thread memory pool is
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      items3(NULL),
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      ref_pointer_array_size(0),
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      zero_result_cause(NULL),
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      sj_tmp_tables(NULL),
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      sortorder(NULL),
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      table_reexec(NULL),
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      join_tab_reexec(NULL)
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    items3= NULL;
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    ref_pointer_array_size= 0;
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    zero_result_cause= NULL;
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    sj_tmp_tables= NULL;
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    sortorder= NULL;
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    table_reexec= NULL;
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    join_tab_reexec= NULL;
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  int destroy();
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  void restore_tmp();
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  bool alloc_func_list();
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  bool flatten_subqueries();
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  bool setup_subquery_materialization();
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  bool make_sum_func_list(List<Item> &all_fields, 
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                          List<Item> &send_fields,