MySQL 9.0.0
Source Code Documentation
partition_pruning.h
Go to the documentation of this file.
1/* Copyright (c) 2000, 2024, Oracle and/or its affiliates.
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License, version 2.0,
5 as published by the Free Software Foundation.
6
7 This program is designed to work with certain software (including
8 but not limited to OpenSSL) that is licensed under separate terms,
9 as designated in a particular file or component or in included license
10 documentation. The authors of MySQL hereby grant you an additional
11 permission to link the program and your derivative works with the
12 separately licensed software that they have either included with
13 the program or referenced in the documentation.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License, version 2.0, for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
23
24#ifndef SQL_RANGE_OPTIMIZER_PARTITION_PRUNING_H_
25#define SQL_RANGE_OPTIMIZER_PARTITION_PRUNING_H_
26
27/*
28 PartitionPruningModule
29 A module that accepts a partitioned table, condition, and finds which
30 partitions we will need to use in query execution. Search down for
31 "PartitionPruningModule" for description.
32 The module has single entry point - prune_partitions() function.
33 */
34
35class Item;
36class Query_block;
37class THD;
38struct TABLE;
39
40bool prune_partitions(THD *thd, TABLE *table, Query_block *query_block,
41 Item *pprune_cond);
42
43#endif // SQL_RANGE_OPTIMIZER_PARTITION_PRUNING_H_
Base class that is used to represent any kind of expression in a relational query.
Definition: item.h:930
This class represents a query block, aka a query specification, which is a query consisting of a SELE...
Definition: sql_lex.h:1175
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_lexer_thd.h:36
static PFS_engine_table_share_proxy table
Definition: pfs.cc:61
bool prune_partitions(THD *thd, TABLE *table, Query_block *query_block, Item *pprune_cond)
Perform partition pruning for a given table and condition.
Definition: partition_pruning.cc:251
Definition: table.h:1407