98 lines
4.2 KiB
C++
98 lines
4.2 KiB
C++
/* Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
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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, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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, version 2.0, for more details.
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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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#include "sql/dd/impl/tables/index_column_usage.h"
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#include <new>
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#include "sql/dd/impl/raw/object_keys.h" // dd::Parent_id_range_key
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#include "sql/dd/impl/tables/dd_properties.h" // TARGET_DD_VERSION
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#include "sql/dd/impl/types/object_table_definition_impl.h"
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namespace dd {
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namespace tables {
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const Index_column_usage &Index_column_usage::instance() {
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static Index_column_usage *s_instance = new Index_column_usage();
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return *s_instance;
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}
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///////////////////////////////////////////////////////////////////////////
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Index_column_usage::Index_column_usage() {
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m_target_def.set_table_name("index_column_usage");
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m_target_def.add_field(FIELD_INDEX_ID, "FIELD_INDEX_ID",
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"index_id BIGINT UNSIGNED NOT NULL");
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m_target_def.add_field(FIELD_ORDINAL_POSITION, "FIELD_ORDINAL_POSITION",
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"ordinal_position INT UNSIGNED NOT NULL");
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m_target_def.add_field(FIELD_COLUMN_ID, "FIELD_COLUMN_ID",
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"column_id BIGINT UNSIGNED NOT NULL");
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m_target_def.add_field(FIELD_LENGTH, "FIELD_LENGTH", "length INT UNSIGNED");
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/*
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TODO-WIKI6599.Task20: What value we are supposed to use for indexes which
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don't support ordering? How this can be mapped to I_S?
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Perhaps make it nullable?
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*/
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m_target_def.add_field(FIELD_ORDER, "FIELD_ORDER",
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"`order` ENUM('UNDEF', 'ASC', 'DESC') "
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"NOT NULL");
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m_target_def.add_field(FIELD_HIDDEN, "FIELD_HIDDEN", "hidden BOOL NOT NULL");
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m_target_def.add_index(INDEX_UK_INDEX_ID_ORDINAL_POSITION,
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"INDEX_UK_INDEX_ID_ORDINAL_POSITION",
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"UNIQUE KEY (index_id, ordinal_position)");
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m_target_def.add_index(INDEX_UK_INDEX_ID_COLUMN_ID_HIDDEN,
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"INDEX_UK_INDEX_ID_COLUMN_ID_HIDDEN",
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"UNIQUE KEY (index_id, column_id, hidden)");
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m_target_def.add_index(INDEX_K_COLUMN_ID, "INDEX_K_COLUMN_ID",
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"KEY (column_id)");
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m_target_def.add_foreign_key(FK_INDEX_ID, "FK_INDEX_ID",
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"FOREIGN KEY (index_id) REFERENCES "
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"indexes(id)");
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m_target_def.add_foreign_key(FK_COLUMN_ID, "FK_COLUMN_ID",
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"FOREIGN KEY (column_id) REFERENCES "
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"columns(id)");
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}
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///////////////////////////////////////////////////////////////////////////
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Object_key *Index_column_usage::create_key_by_index_id(Object_id index_id) {
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return new (std::nothrow) Parent_id_range_key(
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INDEX_UK_INDEX_ID_ORDINAL_POSITION, FIELD_INDEX_ID, index_id);
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}
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///////////////////////////////////////////////////////////////////////////
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Object_key *Index_column_usage::create_primary_key(Object_id index_id,
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int ordinal_position) {
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return new (std::nothrow)
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Composite_pk(INDEX_UK_INDEX_ID_ORDINAL_POSITION, FIELD_INDEX_ID, index_id,
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FIELD_ORDINAL_POSITION, ordinal_position);
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}
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///////////////////////////////////////////////////////////////////////////
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} // namespace tables
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} // namespace dd
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