111 lines
3.1 KiB
C++
111 lines
3.1 KiB
C++
/* Copyright (c) 2017, 2018, 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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#ifndef DD_SYSTEM_VIEWS__STATISTICS_INCLUDED
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#define DD_SYSTEM_VIEWS__STATISTICS_INCLUDED
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#include "sql/dd/impl/system_views/system_view_definition_impl.h"
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#include "sql/dd/impl/system_views/system_view_impl.h"
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#include "sql/dd/string_type.h"
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namespace dd {
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namespace system_views {
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/*
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The class representing INFORMATION_SCHEMA.STATISTICS system view
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definition.
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*/
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class Statistics_base
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: public System_view_impl<System_view_select_definition_impl> {
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public:
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enum enum_fields {
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FIELD_TABLE_CATALOG,
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FIELD_TABLE_SCHEMA,
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FIELD_TABLE_NAME,
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FIELD_NON_UNIQUE,
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FIELD_INDEX_SCHEMA,
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FIELD_INDEX_NAME,
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FIELD_SEQ_IN_INDEX,
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FIELD_COLUMN_NAME,
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FIELD_COLLATION,
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FIELD_CARDINALITY,
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FIELD_SUB_PART,
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FIELD_PACKED,
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FIELD_NULLABLE,
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FIELD_INDEX_TYPE,
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FIELD_COMMENT,
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FIELD_INDEX_COMMENT,
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FIELD_IS_VISIBLE,
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FIELD_INDEX_ORDINAL_POSITION,
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FIELD_COLUMN_ORDINAL_POSITION,
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FIELD_EXPRESSION
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};
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Statistics_base();
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virtual const String_type &name() const = 0;
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};
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/*
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The class representing INFORMATION_SCHEMA.STATISTICS system view definition
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*/
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class Statistics : public Statistics_base {
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public:
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Statistics();
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static const Statistics_base &instance();
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static const String_type &view_name() {
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static String_type s_view_name("STATISTICS");
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return s_view_name;
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}
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virtual const String_type &name() const { return Statistics::view_name(); }
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};
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/*
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The class represents system view definition used by SHOW STATISTICS when
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*/
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class Show_statistics : public Statistics {
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public:
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Show_statistics();
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static const Statistics_base &instance();
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static const String_type &view_name() {
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static String_type s_view_name("SHOW_STATISTICS");
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return s_view_name;
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}
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virtual const String_type &name() const {
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return Show_statistics::view_name();
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}
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// This view definition is hidden from user.
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virtual bool hidden() const { return true; }
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};
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} // namespace system_views
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} // namespace dd
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#endif // DD_SYSTEM_VIEWS__STATISTICS_INCLUDED
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