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390.1.2
by Monty Taylor
Fixed copyright headers in drizzled/ |
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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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327.2.4
by Brian Aker
Refactoring table.h |
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#ifndef DRIZZLED_NESTED_JOIN_H
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#define DRIZZLED_NESTED_JOIN_H
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553.1.2
by Monty Taylor
Moved some bitmap defines into bitmap. |
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#include <drizzled/sql_list.h> |
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#include <drizzled/sql_bitmap.h> |
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553.1.3
by Monty Taylor
Split out nested_join.h. |
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#include <drizzled/item.h> |
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#include <drizzled/table_list.h> |
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553.1.2
by Monty Taylor
Moved some bitmap defines into bitmap. |
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1100.4.2
by Padraig O'Sullivan
Removed the typedef for nested_join_map and instead just declare these |
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#include <bitset> |
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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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327.2.4
by Brian Aker
Refactoring table.h |
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struct nested_join_st |
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{
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553.1.3
by Monty Taylor
Split out nested_join.h. |
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/* list of elements in the nested join */
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List<TableList> join_list; |
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/* bitmap of tables in the nested join */
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table_map used_tables; |
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/* tables that rejects nulls */
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table_map not_null_tables; |
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/* the first nested table in the plan */
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1089.1.1
by Brian Aker
Remove of JOIN_TAB to JoinTable |
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JoinTable *first_nested; |
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553.1.3
by Monty Taylor
Split out nested_join.h. |
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/*
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327.2.4
by Brian Aker
Refactoring table.h |
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Used to count tables in the nested join in 2 isolated places:
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553.1.3
by Monty Taylor
Split out nested_join.h. |
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1. In make_outerjoin_info().
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327.2.4
by Brian Aker
Refactoring table.h |
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2. check_interleaving_with_nj/restore_prev_nj_state (these are called
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553.1.3
by Monty Taylor
Split out nested_join.h. |
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by the join optimizer.
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327.2.4
by Brian Aker
Refactoring table.h |
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Before each use the counters are zeroed by reset_nj_counters.
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*/
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553.1.3
by Monty Taylor
Split out nested_join.h. |
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uint32_t counter_; |
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/* Bit used to identify this nested join*/
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1100.4.2
by Padraig O'Sullivan
Removed the typedef for nested_join_map and instead just declare these |
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std::bitset<64> nj_map; |
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553.1.3
by Monty Taylor
Split out nested_join.h. |
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327.2.4
by Brian Aker
Refactoring table.h |
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/*
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(Valid only for semi-join nests) Bitmap of tables outside the semi-join
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that are used within the semi-join's ON condition.
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*/
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553.1.3
by Monty Taylor
Split out nested_join.h. |
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table_map sj_depends_on; |
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327.2.4
by Brian Aker
Refactoring table.h |
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/* Outer non-trivially correlated tables */
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553.1.3
by Monty Taylor
Split out nested_join.h. |
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table_map sj_corr_tables; |
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List<Item> sj_outer_expr_list; |
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327.2.4
by Brian Aker
Refactoring table.h |
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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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327.2.4
by Brian Aker
Refactoring table.h |
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#endif /* DRIZZLED_NESTED_JOIN_H */ |