88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
/* Copyright (c) 2018, 2021, Alibaba 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/PolarDB-X Engine hereby grant you an
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additional permission to link the program and your derivative works with the
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separately licensed software that they have included with
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MySQL/PolarDB-X Engine.
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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 SQL_STATISTICS_COMMON_INCLUDED
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#define SQL_STATISTICS_COMMON_INCLUDED
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#include "sql/sql_const.h" // MAX_KEY
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struct ST_FIELD_INFO;
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class THD;
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struct TABLE_LIST;
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class Item;
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/*All the extern variables and functions */
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extern bool opt_tablestat;
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extern bool opt_indexstat;
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extern ST_FIELD_INFO table_stats_fields_info[];
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extern ST_FIELD_INFO index_stats_fields_info[];
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extern int fill_schema_table_stats(THD *thd, TABLE_LIST *tables,
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Item *__attribute__((unused)));
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extern int fill_schema_index_stats(THD *thd, TABLE_LIST *tables,
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Item *__attribute__((unused)));
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extern void object_statistics_context_init();
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extern void object_statistics_context_destroy();
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/**
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These structure will be used by sql_statistics and handler, so defined it
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here, in order to decrease the compile dependency.
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*/
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typedef struct Stats_data {
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public:
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ulonglong rows_read;
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ulonglong rows_changed;
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ulonglong rows_deleted;
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ulonglong rows_inserted;
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ulonglong rows_updated;
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ulonglong rds_rows_read_del_mark;
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ulonglong index_rows_read[MAX_KEY];
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ulonglong index_scan_used[MAX_KEY];
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Stats_data() { reset(); }
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void reset_table() {
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rows_read = rows_changed = rows_deleted = rows_inserted = rows_updated = 0;
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rds_rows_read_del_mark = 0;
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}
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void reset_index() {
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for (size_t i = 0; i < MAX_KEY; i++) {
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index_rows_read[i] = 0;
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index_scan_used[i] = 0;
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}
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}
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void reset_index(size_t i) {
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if (i < MAX_KEY) index_rows_read[i] = 0;
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if (i < MAX_KEY) index_scan_used[i] = 0;
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}
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void reset() {
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reset_table();
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reset_index();
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}
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} Stats_data;
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#endif
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