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/* Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#ifndef TABLE_ESMS_BY_DIGEST_H
#define TABLE_ESMS_BY_DIGEST_H
/**
@file storage/perfschema/table_esms_by_digest.h
Table EVENTS_STATEMENTS_SUMMARY_BY_DIGEST (declarations).
*/
#include "table_helper.h"
#include "pfs_digest.h"
/**
@addtogroup Performance_schema_tables
@{
*/
/**
A row of table
PERFORMANCE_SCHEMA.EVENTS_STATEMENTS_SUMMARY_BY_DIGEST.
*/
struct row_esms_by_digest
{
/** Columns DIGEST/DIGEST_TEXT. */
PFS_digest_row m_digest;
/** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT. */
PFS_statement_stat_row m_stat;
/** Column FIRST_SEEN. */
ulonglong m_first_seen;
/** Column LAST_SEEN. */
ulonglong m_last_seen;
};
/** Table PERFORMANCE_SCHEMA.EVENTS_STATEMENTS_SUMMARY_BY_DIGEST. */
class table_esms_by_digest : public PFS_engine_table
{
public:
/** Table share */
static PFS_engine_table_share m_share;
static PFS_engine_table* create();
static int delete_all_rows();
virtual int rnd_next();
virtual int rnd_pos(const void *pos);
virtual void reset_position(void);
protected:
virtual int read_row_values(TABLE *table,
unsigned char *buf,
Field **fields,
bool read_all);
table_esms_by_digest();
public:
~table_esms_by_digest()
{}
protected:
void make_row(PFS_statements_digest_stat*);
private:
/** Table share lock. */
static THR_LOCK m_table_lock;
/** Current row. */
row_esms_by_digest m_row;
/** True is the current row exists. */
bool m_row_exists;
/** Current position. */
PFS_simple_index m_pos;
/** Next position. */
PFS_simple_index m_next_pos;
};
/** @} */
#endif
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