~drizzle-trunk/drizzle/development

851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2008 Sun Microsystems
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; version 2 of the License.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#ifndef DRIZZLED_TMP_TABLE_PARAM_H
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#define DRIZZLED_TMP_TABLE_PARAM_H
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1280.1.10 by Monty Taylor
Put everything in drizzled into drizzled namespace.
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namespace drizzled
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{
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851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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/*
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  Param to create temporary tables when doing SELECT:s
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  NOTE
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    This structure is copied using memcpy as a part of JOIN.
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*/
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1280.1.10 by Monty Taylor
Put everything in drizzled into drizzled namespace.
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class Tmp_Table_Param :public memory::SqlAlloc
851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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{
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private:
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  /* Prevent use of these (not safe because of lists and copy_field) */
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  Tmp_Table_Param(const Tmp_Table_Param &);
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  void operator=(Tmp_Table_Param &);
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public:
1535 by Brian Aker
Rename of KEY to KeyInfo
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  KeyInfo *keyinfo;
1101.1.16 by Monty Taylor
Reverted 1103
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  List<Item> copy_funcs;
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  List<Item> save_copy_funcs;
1052.2.2 by Nathan Williams
No actual code changes. Changed Copy_field to CopyField, to reflect the coding standards.
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  CopyField *copy_field, *copy_field_end;
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  CopyField *save_copy_field, *save_copy_field_end;
851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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  unsigned char	    *group_buff;
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  Item	    **items_to_copy;			/* Fields in tmp table */
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  MI_COLUMNDEF *recinfo,*start_recinfo;
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  ha_rows end_write_records;
1030.1.3 by Brian Aker
Final bits to structure alignment
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  uint32_t	field_count;
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  uint32_t	sum_func_count;
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  uint32_t	func_count;
851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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  uint32_t  hidden_field_count;
1030.1.3 by Brian Aker
Final bits to structure alignment
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  uint32_t	group_parts,group_length,group_null_parts;
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  uint32_t	quick_group;
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  bool using_indirect_summary_function;
851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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  bool schema_table;
1030.1.3 by Brian Aker
Final bits to structure alignment
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851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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  /*
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    True if GROUP BY and its aggregate functions are already computed
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    by a table access method (e.g. by loose index scan). In this case
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    query execution should not perform aggregation and should treat
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    aggregate functions as normal functions.
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  */
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  bool precomputed_group_by;
1030.1.3 by Brian Aker
Final bits to structure alignment
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851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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  bool force_copy_fields;
1030.1.3 by Brian Aker
Final bits to structure alignment
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  /* If >0 convert all blob fields to varchar(convert_blob_length) */
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  uint32_t  convert_blob_length;
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  const CHARSET_INFO *table_charset;
851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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  Tmp_Table_Param()
1101.1.16 by Monty Taylor
Reverted 1103
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    :copy_field(0),
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    group_parts(0),
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    group_length(0),
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    group_null_parts(0),
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    schema_table(false),
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    precomputed_group_by(false),
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    force_copy_fields(false),
1273.2.2 by Stewart Smith
it turns out that bit_fields_as_long in tmp_table_param is in fact unused. remove it.
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    convert_blob_length(0)
851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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  {}
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  ~Tmp_Table_Param()
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  {
1101.1.16 by Monty Taylor
Reverted 1103
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    cleanup();
851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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  }
1101.1.16 by Monty Taylor
Reverted 1103
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  void init(void);
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  void cleanup(void);
851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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};
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1280.1.10 by Monty Taylor
Put everything in drizzled into drizzled namespace.
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} /* namespace drizzled */
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851 by Brian Aker
Class rewrite of Session (aka get all of the junk out)
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#endif /* DRIZZLED_TMP_TABLE_PARAM_H */