MDEV-11487 Revert InnoDB internal temporary tables from WL#7682

Post-push fix: Remove the orphaned file sess0sess.h.

storage/innobase/include/sess0sess.h

-/*****************************************************************************
-
-Copyright (c) 2013, 2014, 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, Suite 500, Boston, MA 02110-1335 USA
-
-*****************************************************************************/
-
-/**************************************************//**
-@file include/sess0sess.h
-InnoDB session state tracker.
-Multi file, shared, system tablespace implementation.
-
-Created 2014-04-30 by Krunal Bauskar
-*******************************************************/
-
-#ifndef sess0sess_h
-#define sess0sess_h
-
-#include "univ.i"
-#include "dict0mem.h"
-#include "ut0new.h"
-
-#include <map>
-
-class dict_intrinsic_table_t {
-
-public:
-	/** Constructor
-	@param[in,out]	handler		table handler. */
-	dict_intrinsic_table_t(dict_table_t*	handler)
-		:
-		m_handler(handler)
-	{
-		/* Do nothing. */
-	}
-
-	/** Destructor */
-	~dict_intrinsic_table_t()
-	{
-		m_handler = NULL;
-	}
-
-public:
-
-	/* Table Handler holding other metadata information commonly needed
-	for any table. */
-	dict_table_t*				m_handler;
-};
-
-/** InnoDB private data that is cached in THD */
-typedef std::map<
-	std::string,
-	dict_intrinsic_table_t*,
-	std::less<std::string>,
-	ut_allocator<std::pair<const std::string, dict_intrinsic_table_t*> > >
-	table_cache_t;
-
-class innodb_session_t {
-public:
-	/** Constructor */
-	innodb_session_t()
-		: m_trx(),
-		  m_open_tables()
-	{
-		/* Do nothing. */
-	}
-
-	/** Destructor */
-	~innodb_session_t()
-	{
-		m_trx = NULL;
-
-		for (table_cache_t::iterator it = m_open_tables.begin();
-		     it != m_open_tables.end();
-		     ++it) {
-			delete(it->second);
-		}
-	}
-
-	/** Cache table handler.
-	@param[in]	table_name	name of the table
-	@param[in,out]	table		table handler to register */
-	void register_table_handler(
-		const char*	table_name,
-		dict_table_t*	table)
-	{
-		ut_ad(lookup_table_handler(table_name) == NULL);
-		m_open_tables.insert(table_cache_t::value_type(
-			table_name, new dict_intrinsic_table_t(table)));
-	}
-
-	/** Lookup for table handler given table_name.
-	@param[in]	table_name	name of the table to lookup */
-	dict_table_t* lookup_table_handler(
-		const char*	table_name)
-	{
-		table_cache_t::iterator it = m_open_tables.find(table_name);
-		return((it == m_open_tables.end())
-		       ? NULL : it->second->m_handler);
-	}
-
-	/** Remove table handler entry.
-	@param[in]	table_name	name of the table to remove */
-	void unregister_table_handler(
-		const char*	table_name)
-	{
-		table_cache_t::iterator it = m_open_tables.find(table_name);
-		if (it == m_open_tables.end()) {
-			return;
-		}
-
-		delete(it->second);
-		m_open_tables.erase(table_name);
-	}
-
-	/** Count of register table handler.
-	@return number of register table handlers */
-	uint count_register_table_handler() const
-	{
-		return(static_cast<uint>(m_open_tables.size()));
-	}
-
-public:
-
-	/** transaction handler. */
-	trx_t*		m_trx;
-
-	/** Handler of tables that are created or open but not added
-	to InnoDB dictionary as they are session specific.
-	Currently, limited to intrinsic temporary tables only. */
-	table_cache_t	m_open_tables;
-};
-
-
-#endif /* sess0sess_h */