MDEV-12459 Get temporary tables visible to the IS.tables for current connection

Additionally fixes the bugs uncovered in:
  - `MDEV-28332: Alter on temporary table causes ER_TABLE_EXISTS_ERROR note`
    Since there is no `warning` issued by shadowing of base table, this MDEV
    is irrelevant. Keeping for review purposes and for future development
    in case shadowing is going to be implemented
  - `MDEV-28334: SHOW TABLE STATUS shows all temporary tables ignoring database and conditions`
  - `MDEV-28453: SHOW commands are inconsistent for temporary tables`

Reviewed by: <monty@mariadb.org>,
             <vicentiu@mariadb.org>

mysql-test/main/alter_table.result

@@ -991,10 +991,14 @@ CREATE TEMPORARY TABLE `#sql1` (c1 INT);
 CREATE TEMPORARY TABLE `@0023sql2` (c1 INT);
 SHOW TABLES;
 Tables_in_test
+@0023sql2
+#sql1
 ALTER TABLE `#sql1`      RENAME `@0023sql1`;
 ALTER TABLE `@0023sql2`  RENAME `#sql2`;
 SHOW TABLES;
 Tables_in_test
+#sql2
+@0023sql1
 INSERT INTO `#sql2`      VALUES (1);
 INSERT INTO `@0023sql1`  VALUES (2);
 SHOW CREATE TABLE `#sql2`;

mysql-test/main/create_or_replace2.result

@@ -9,6 +9,7 @@ CREATE OR REPLACE TABLE t1 LIKE tmp;
 SET debug_dbug=@old_debug;
 SHOW TABLES;
 Tables_in_test
+tmp
 t1
 show create table t1;
 Table	Create Table

mysql-test/main/grant5.result

@@ -260,10 +260,13 @@ connect  con1,localhost,foo,,db;
 create temporary table tmp (a int, key(a));
 show tables;
 Tables_in_db
+tmp
 show full tables;
 Tables_in_db	Table_type
+tmp	TEMPORARY TABLE
 show table status;
 Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment	Max_index_length	Temporary
+tmp	MyISAM	10	Fixed	0	0	X	X	X	X	X	X	X	X	latin1_swedish_ci	NULL			X	Y
 show index in tmp;
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment	Ignored
 tmp	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE			NO

mysql-test/main/grant5.test

@@ -225,6 +225,7 @@ grant create temporary tables on db.* to bar@localhost;
 create temporary table tmp (a int, key(a));
 show tables;
 show full tables;
+--replace_column 7 X 8 X 9 X 10 X 11 X 12 X 13 X 14 X 19 X
 show table status;
 show index in tmp;
 show columns in tmp;

mysql-test/main/information_schema_temp_table.result

+#
+# MDEV-12459: The information_schema tables for getting temporary tables
+#             info is missing, at least for innodb, there is no
+#             INNODB_TEMP_TABLE_INFO
+#
+# -------------------------------
+# Test shadowing of a base table
+# -------------------------------
+create database some_db;
+use some_db;
+# Creating temporary table with the same name shadows the base table
+# in `show create` and by design, should not raise any warning
+create table t(t int);
+create temporary table t(t int);
+show create table t;
+Table	Create Table
+t	CREATE TEMPORARY TABLE `t` (
+  `t` int(11) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+select table_schema, table_name, temporary from information_schema.tables where table_name='t';
+table_schema	table_name	temporary
+some_db	t	Y
+some_db	t	N
+drop table t;
+drop table t;
+use test;
+# ------------------------
+# IS.tables tests
+# ------------------------
+# Create first temporary table
+create temporary table test.t_temp(t int);
+insert into t_temp values (1),(2), (3);
+# Show results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary';
+table_schema	table_name	temporary
+test	t_temp	Y
+# Create the base table with the same name (both should be visible)
+create table test.t_temp(t int);
+insert into t_temp values (-1),(-2);
+# Show results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary';
+table_schema	table_name	temporary
+test	t_temp	Y
+create database my_db;
+# Create the temporary table with the same name in new DB
+create temporary table my_db.t_temp (t int);
+insert into my_db.t_temp values (-2),(-1);
+# Show results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary'
+  order by table_schema desc, table_name desc, table_type desc;
+table_schema	table_name	temporary
+test	t_temp	Y
+my_db	t_temp	Y
+connect  con1,localhost,root,,my_db,,;
+# Create the temporary table with the same name in new connection
+create temporary table t_temp(t int);
+insert into t_temp values (4),(5),(6), (7);
+# Show results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary'
+   order by table_schema desc, table_name desc, table_type desc;
+table_schema	table_name	temporary
+my_db	t_temp	Y
+connection default;
+# Show results in default connection
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary'
+  order by table_schema desc, table_name desc, table_type desc;
+table_schema	table_name	temporary
+test	t_temp	Y
+my_db	t_temp	Y
+# Check shadowing and (no)warning with explicit referencing database
+create table some_db.my_t (t int);
+show warnings;
+Level	Code	Message
+create temporary table some_db.my_t (t int);
+show warnings;
+Level	Code	Message
+# Show results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary'
+  order by table_schema desc, table_name desc, table_type desc;
+table_schema	table_name	temporary
+test	t_temp	Y
+some_db	my_t	Y
+my_db	t_temp	Y
+use test;
+create table t1 (a int);
+create sequence s1;
+create temporary table t1 (b int);
+create temporary sequence s1;
+create temporary sequence s2;
+select table_schema, table_name, table_type, temporary from information_schema.tables where table_schema = 'test'
+  order by table_schema desc, table_name desc, table_type desc;
+table_schema	table_name	table_type	temporary
+test	t_temp	TEMPORARY	Y
+test	t_temp	BASE TABLE	N
+test	t1	TEMPORARY	Y
+test	t1	BASE TABLE	N
+test	s2	TEMPORARY SEQUENCE	Y
+test	s1	TEMPORARY SEQUENCE	Y
+test	s1	SEQUENCE	N
+drop table t1;
+drop table t1;
+drop table s1;
+drop table s1;
+drop table s2;
+drop table some_db.my_t;
+drop table some_db.my_t;
+disconnect con1;
+drop table test.t_temp;
+drop table test.t_temp;
+drop database my_db;
+drop database some_db;
+#
+# MDEV-28332: Alter on temporary table causes ER_TABLE_EXISTS_ERROR note
+#
+create table t (a int);
+create temporary table t (b int);
+alter table t add c int;
+drop temporary table t;
+drop table t;
+#
+# MDEV-28334: SHOW TABLE STATUS shows all temporary tables
+#             ignoring database and conditions
+#
+create temporary table test.tmp_in_test (a int);
+create table test.base_in_test (t int);
+create table test.tmp_in_test (t int);
+create temporary table test.tmp_innodb_in_test (a int) engine=InnoDB;
+create database mysqltest;
+use mysqltest;
+show table status;
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment	Max_index_length	Temporary
+show table status in mysqltest;
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment	Max_index_length	Temporary
+show table status in test;
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment	Max_index_length	Temporary
+tmp_innodb_in_test	InnoDB	10	Dynamic	0	0	16384	0	0	6291456	NULL	#	#	#	latin1_swedish_ci	NULL			0	Y
+tmp_in_test	MyISAM	10	Fixed	0	0	0	1970324836974591	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	Y
+base_in_test	MyISAM	10	Fixed	0	0	0	1970324836974591	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	N
+tmp_in_test	MyISAM	10	Fixed	0	0	0	1970324836974591	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	N
+show table status from test;
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment	Max_index_length	Temporary
+tmp_innodb_in_test	InnoDB	10	Dynamic	0	0	16384	0	0	6291456	NULL	#	#	#	latin1_swedish_ci	NULL			0	Y
+tmp_in_test	MyISAM	10	Fixed	0	0	0	1970324836974591	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	Y
+base_in_test	MyISAM	10	Fixed	0	0	0	1970324836974591	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	N
+tmp_in_test	MyISAM	10	Fixed	0	0	0	1970324836974591	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	N
+# check that InnoDB temporary table
+# has a NULL value for `Create time` column (MDEV-28333)
+select create_time from information_schema.tables where table_name='tmp_innodb_in_test';
+create_time
+NULL
+show table status like 'nonexisting';
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment	Max_index_length	Temporary
+drop database mysqltest;
+drop table test.base_in_test;
+drop table test.tmp_in_test;
+drop table test.tmp_in_test;
+#
+# MDEV-28453: SHOW commands are inconsistent for temporary tables
+#
+create database mysqltest;
+use mysqltest;
+create table t (a int, key(a)) engine=Aria;
+create temporary table t (b int, key(b)) engine=MyISAM;
+create table base_table(t int);
+create temporary table tmp_table (b int, key(b));
+create sequence s1;
+create temporary sequence s1;
+create temporary sequence s2;
+show tables;
+Tables_in_mysqltest
+s2
+s1
+tmp_table
+t
+base_table
+s1
+t
+show full tables;
+Tables_in_mysqltest	Table_type
+s2	TEMPORARY SEQUENCE
+s1	TEMPORARY SEQUENCE
+tmp_table	TEMPORARY TABLE
+t	TEMPORARY TABLE
+base_table	BASE TABLE
+s1	SEQUENCE
+t	BASE TABLE
+show table status;
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment	Max_index_length	Temporary
+s2	MyISAM	10	Fixed	1	58	58	16325548649218047	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	Y
+s1	MyISAM	10	Fixed	1	58	58	16325548649218047	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	Y
+tmp_table	MyISAM	10	Fixed	0	0	0	1970324836974591	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			288230376151710720	Y
+t	MyISAM	10	Fixed	0	0	0	1970324836974591	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			288230376151710720	Y
+base_table	MyISAM	10	Fixed	0	0	0	1970324836974591	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	N
+s1	MyISAM	10	Fixed	1	58	58	16325548649218047	1024	0	NULL	#	#	#	latin1_swedish_ci	NULL			17179868160	N
+t	Aria	10	Page	0	0	8192	17592186011648	8192	0	NULL	#	#	#	latin1_swedish_ci	NULL	transactional=1		9007199254732800	N
+show columns in t;
+Field	Type	Null	Key	Default	Extra
+b	int(11)	YES	MUL	NULL	
+show index in t;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment	Ignored
+t	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE			NO
+drop database mysqltest;

mysql-test/main/information_schema_temp_table.test

+--echo #
+--echo # MDEV-12459: The information_schema tables for getting temporary tables
+--echo #             info is missing, at least for innodb, there is no
+--echo #             INNODB_TEMP_TABLE_INFO
+--echo #
+
+# Save the initial number of concurrent sessions
+--source include/count_sessions.inc
+--source include/have_innodb.inc
+
+--echo # -------------------------------
+--echo # Test shadowing of a base table
+--echo # -------------------------------
+
+create database some_db;
+use some_db;
+
+--echo # Creating temporary table with the same name shadows the base table
+--echo # in `show create` and by design, should not raise any warning
+create table t(t int);
+create temporary table t(t int);
+show create table t;
+select table_schema, table_name, temporary from information_schema.tables where table_name='t';
+drop table t;
+drop table t;
+use test;
+
+--echo # ------------------------
+--echo # IS.tables tests
+--echo # ------------------------
+
+--echo # Create first temporary table
+create temporary table test.t_temp(t int);
+insert into t_temp values (1),(2), (3);
+
+--echo # Show results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary';
+
+--echo # Create the base table with the same name (both should be visible)
+# Create the base table with the same name as temporary table.
+create table test.t_temp(t int);
+insert into t_temp values (-1),(-2);
+
+--echo # Show results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary';
+
+create database my_db;
+--echo # Create the temporary table with the same name in new DB
+create temporary table my_db.t_temp (t int);
+insert into my_db.t_temp values (-2),(-1);
+--echo # Show results
+--horizontal_results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary'
+  order by table_schema desc, table_name desc, table_type desc;
+
+connect (con1,localhost,root,,my_db,,);
+
+--echo # Create the temporary table with the same name in new connection
+create temporary table t_temp(t int);
+insert into t_temp values (4),(5),(6), (7);
+--echo # Show results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary'
+   order by table_schema desc, table_name desc, table_type desc;
+
+connection default;
+
+--echo # Show results in default connection
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary'
+  order by table_schema desc, table_name desc, table_type desc;
+
+--echo # Check shadowing and (no)warning with explicit referencing database
+create table some_db.my_t (t int);
+show warnings;
+create temporary table some_db.my_t (t int);
+show warnings;
+
+--echo # Show results
+select table_schema, table_name, temporary from  information_schema.tables where table_type='temporary'
+  order by table_schema desc, table_name desc, table_type desc;
+
+# Check with sequences
+use test;
+create table t1 (a int);
+create sequence s1;
+create temporary table t1 (b int);
+create temporary sequence s1;
+create temporary sequence s2;
+select table_schema, table_name, table_type, temporary from information_schema.tables where table_schema = 'test'
+  order by table_schema desc, table_name desc, table_type desc;
+
+drop table t1;
+drop table t1;
+drop table s1;
+drop table s1;
+drop table s2;
+
+# First we are removing temporary table and after base table
+drop table some_db.my_t;
+drop table some_db.my_t;
+
+disconnect con1;
+
+# Drop both temporary and "real" table from test.
+drop table test.t_temp;
+drop table test.t_temp;
+
+drop database my_db;
+drop database some_db;
+
+# Wait till all disconnects are completed
+--source include/wait_until_count_sessions.inc
+
+--echo #
+--echo # MDEV-28332: Alter on temporary table causes ER_TABLE_EXISTS_ERROR note
+--echo #
+create table t (a int);
+create temporary table t (b int);
+alter table t add c int;
+
+# Cleanup
+drop temporary table t;
+drop table t;
+
+--echo #
+--echo # MDEV-28334: SHOW TABLE STATUS shows all temporary tables
+--echo #             ignoring database and conditions
+--echo #
+
+create temporary table test.tmp_in_test (a int);
+create table test.base_in_test (t int);
+# The base table with the same name as temporary table
+create table test.tmp_in_test (t int);
+# The temporary InnoDB table - CREATE TIME should be NULL, MDEV-28333
+create temporary table test.tmp_innodb_in_test (a int) engine=InnoDB;
+
+create database mysqltest;
+use mysqltest;
+
+# This should show tables from currently used DB
+# no temporary tables created and empty result set should be returned
+show table status;
+
+# The same as before
+show table status in mysqltest;
+
+# The should show all ables from `test` DB
+--replace_column 12 # 13 # 14 #
+--horizontal_results
+show table status in test;
+
+# The same as before
+--replace_column 12 # 13 # 14 #
+--horizontal_results
+show table status from test;
+
+
+--echo # check that InnoDB temporary table
+--echo # has a NULL value for `Create time` column (MDEV-28333)
+select create_time from information_schema.tables where table_name='tmp_innodb_in_test';
+
+# This shouldn't give any results
+show table status like 'nonexisting';
+
+# Cleanup
+drop database mysqltest;
+drop table test.base_in_test;
+# We need first to drop temporary table that shadows the base table
+drop table test.tmp_in_test;
+drop table test.tmp_in_test;
+
+--echo #
+--echo # MDEV-28453: SHOW commands are inconsistent for temporary tables
+--echo #
+create database mysqltest;
+use mysqltest;
+create table t (a int, key(a)) engine=Aria;
+create temporary table t (b int, key(b)) engine=MyISAM;
+create table base_table(t int);
+create temporary table tmp_table (b int, key(b));
+create sequence s1;
+create temporary sequence s1;
+create temporary sequence s2;
+
+# This should show all tables
+show tables;
+# This should show all tables with additional table_type
+show full tables;
+# This is already showing all tables (not related to bug)
+--replace_column 12 # 13 # 14 #
+show table status;
+# This is showing temporary table as expected since it is shadowing base table
+show columns in t;
+# This is showing temporary table as expected since it is shadowing base table
+show index in t;
+
+# Cleanup
+drop database mysqltest;

mysql-test/main/mysqldump.result

@@ -5482,6 +5482,8 @@ Warnings:
 Warning	1105	Event scheduler is switched off, use SET GLOBAL event_scheduler=ON to enable it.
 SHOW TABLES FROM bug25717383;
 Tables_in_bug25717383
+temp
+one
 tab
 one
 view
@@ -5503,6 +5505,8 @@ proc
 one
 SHOW TABLES FROM bug25717383;
 Tables_in_bug25717383
+temp
+one
 tab
 one
 view

mysql-test/main/rename.result

@@ -106,6 +106,8 @@ rename table t2 to tmp, tmp to t2;
 rename table t1_tmp to tmp, tmp to t1_tmp;
 show tables;
 Tables_in_test
+t2
+t1_tmp
 t1_tmp
 t2
 SHOW CREATE TABLE t1_tmp;

mysql-test/main/temp_table.result

@@ -329,6 +329,7 @@ i
 1
 SHOW TABLES;
 Tables_in_temp_db
+temp_t1
 DROP TABLE temp_t1;
 #
 # Create and drop a temporary table.

mysql-test/suite/engines/funcs/r/tc_temporary_column_length.result

@@ -2,6 +2,7 @@ DROP TABLE IF EXISTS t5;
 CREATE TEMPORARY TABLE t5(c1 BIT(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -13,6 +14,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 TINYINT(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -24,6 +26,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 SMALLINT(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -35,6 +38,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 MEDIUMINT(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -46,6 +50,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 INT(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -57,6 +62,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 INTEGER(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -68,6 +74,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 BIGINT(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -79,6 +86,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 CHAR(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -90,6 +98,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 VARCHAR(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -101,6 +110,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 BINARY(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -112,6 +122,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 VARBINARY(10) NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -123,6 +134,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 BIT(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -134,6 +146,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 TINYINT(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -145,6 +158,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 SMALLINT(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -156,6 +170,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 MEDIUMINT(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -167,6 +182,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 INT(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -178,6 +194,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 INTEGER(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -189,6 +206,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 BIGINT(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -200,6 +218,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 CHAR(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -211,6 +230,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 VARCHAR(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -222,6 +242,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 BINARY(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (
@@ -233,6 +254,7 @@ Tables_in_test
 CREATE TEMPORARY TABLE t5(c1 VARBINARY(10) NOT NULL);
 SHOW TABLES;
 Tables_in_test
+t5
 SHOW CREATE TABLE t5;
 Table	Create Table
 t5	CREATE TEMPORARY TABLE `t5` (

mysql-test/suite/funcs_1/r/is_tables.result

@@ -387,6 +387,8 @@ ENGINE = <other_engine_type>
 AS SELECT 1;
 SELECT table_name, table_type FROM information_schema.tables
 WHERE table_name = 't1_my_tablex';
+table_name	t1_my_tablex
+table_type	TEMPORARY
 DROP TEMPORARY TABLE test.t1_my_tablex;
 CREATE TABLE db_datadict.t1_my_tablex
 ENGINE = <engine_type> AS

mysql-test/suite/funcs_1/r/is_tables_embedded.result

@@ -395,6 +395,8 @@ ENGINE = <other_engine_type>
 AS SELECT 1;
 SELECT table_name, table_type FROM information_schema.tables
 WHERE table_name = 't1_my_tablex';
+table_name	t1_my_tablex
+table_type	TEMPORARY
 DROP TEMPORARY TABLE test.t1_my_tablex;
 CREATE TABLE db_datadict.t1_my_tablex
 ENGINE = <engine_type> AS

mysql-test/suite/rpl/r/rpl_ddl.result

@@ -343,6 +343,7 @@ TEST-INFO: SLAVE:  The INSERT is committed (Succeeded)
 connection master;
 SHOW TABLES LIKE 't2';
 Tables_in_mysqltest1 (t2)
+t23
 connection slave;
 SHOW TABLES LIKE 't2';
 Tables_in_mysqltest1 (t2)

mysql-test/suite/rpl/r/rpl_row_create_table.result

@@ -243,6 +243,11 @@ Warnings:
 Warning	1196	Some non-transactional changed tables couldn't be rolled back
 SHOW TABLES;
 Tables_in_test
+tt7
+tt6
+tt5
+tt4
+tt3
 t1
 t2
 t3

mysql-test/suite/rpl/r/rpl_row_drop.result

@@ -6,6 +6,7 @@ CREATE TABLE t2 (a int);
 CREATE TEMPORARY TABLE t2 (a int, b int);
 SHOW TABLES;
 Tables_in_test
+t2
 t1
 t2
 connection slave;
@@ -28,6 +29,7 @@ connection master;
 CREATE TEMPORARY TABLE t2 (a int, b int);
 SHOW TABLES;
 Tables_in_test
+t2
 t1
 t2
 connection slave;

sql/sql_show.cc

@@ -70,6 +70,7 @@
 
 #include "lex_symbol.h"
 #define KEYWORD_SIZE 64
+#define IS_USER_TEMP_TABLE(A) (A->tmp_table != NO_TMP_TABLE)
 
 extern SYMBOL symbols[];
 extern size_t symbols_length;
@@ -161,6 +162,7 @@ static const LEX_CSTRING *view_algorithm(TABLE_LIST *table);
 
 bool get_lookup_field_values(THD *, COND *, bool, TABLE_LIST *,
                              LOOKUP_FIELD_VALUES *);
+void process_i_s_table_temporary_tables(THD *thd, TABLE * table, TABLE *tmp_tbl);
 
 /**
   Try to lock a mutex, but give up after a short while to not cause deadlocks
@@ -5189,6 +5191,7 @@ class Warnings_only_error_handler : public Internal_error_handler
   }
 };
 
+
 /**
   @brief          Fill I_S tables whose data are retrieved
                   from frm files and storage engine
@@ -5329,6 +5332,49 @@ int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond)
 #endif
     {
       Dynamic_array<LEX_CSTRING*> table_names(PSI_INSTRUMENT_MEM);
+
+      /* Separate handling for session temporary tables from the backup state
+         for table IS.tables and SHOW TABLES commands.
+      */
+      if ((schema_table_idx == SCH_TABLES || schema_table_idx == SCH_TABLE_NAMES) &&
+          open_tables_state_backup.temporary_tables)
+      {
+        All_tmp_tables_list::Iterator it(*open_tables_state_backup.temporary_tables);
+        TMP_TABLE_SHARE *share_temp;
+        while ((share_temp= it++))
+        {
+          DBUG_ASSERT(IS_USER_TEMP_TABLE(share_temp));
+          if (my_strcasecmp(system_charset_info, db_name->str,
+                            share_temp->db.str))
+            continue;
+
+          All_share_tables_list::Iterator it2(share_temp->all_tmp_tables);
+          while (TABLE *tmp_tbl= it2++)
+          {
+            if (schema_table_idx == SCH_TABLE_NAMES)
+            {
+              LEX_CSTRING *table_name= &tmp_tbl->s->table_name;
+              restore_record(table, s->default_values);
+              table->field[schema_table->idx_field1]->
+                store(db_name->str, db_name->length, system_charset_info);
+              table->field[schema_table->idx_field2]->
+                store(table_name->str, table_name->length,
+                      system_charset_info);
+              if (tmp_tbl->s->table_type == TABLE_TYPE_SEQUENCE)
+                table->field[3]->store(STRING_WITH_LEN("TEMPORARY SEQUENCE"),
+                                       system_charset_info);
+              else
+                table->field[3]->store(STRING_WITH_LEN("TEMPORARY TABLE"),
+                                       system_charset_info);
+              schema_table_store_record(thd, table);
+            }
+            else /* SCH_TABLE */
+            {
+              process_i_s_table_temporary_tables(thd, table, tmp_tbl);
+            }
+          }
+        }
+      }
       int res= make_table_name_list(thd, &table_names, lex,
                                     &plan->lookup_field_vals, db_name);
       if (unlikely(res == 2))   /* Not fatal error, continue */
@@ -5336,9 +5382,9 @@ int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond)
       if (unlikely(res))
         goto err;
 
-      for (size_t i=0; i < table_names.elements(); i++)
+      for (size_t j=0; j < table_names.elements(); j++)
       {
-        LEX_CSTRING *table_name= table_names.at(i);
+        LEX_CSTRING *table_name= table_names.at(j);
         DBUG_ASSERT(table_name->length <= NAME_LEN);
 
 #ifndef NO_EMBEDDED_ACCESS_CHECKS
@@ -5593,8 +5639,12 @@ static int get_schema_tables_record(THD *thd, TABLE_LIST *tables,
 
     if (share->tmp_table == SYSTEM_TMP_TABLE)
       table->field[3]->store(STRING_WITH_LEN("SYSTEM VIEW"), cs);
+    else if (IS_USER_TEMP_TABLE(share) && share->table_type == TABLE_TYPE_SEQUENCE)
+      table->field[3]->store(STRING_WITH_LEN("TEMPORARY SEQUENCE"), cs);
     else if (share->table_type == TABLE_TYPE_SEQUENCE)
       table->field[3]->store(STRING_WITH_LEN("SEQUENCE"), cs);
+    else if (IS_USER_TEMP_TABLE(share))
+      table->field[3]->store(STRING_WITH_LEN("TEMPORARY"), cs);
     else
     {
       DBUG_ASSERT(share->tmp_table == NO_TMP_TABLE);
@@ -5871,6 +5921,25 @@ static int get_schema_tables_record(THD *thd, TABLE_LIST *tables,
 }
 
 
+/**
+ @brief           Fill IS.table with temporary tables
+ @param[in]       thd              thread handler
+ @param[in]       table            I_S table (TABLE)
+ @param[in]       tmp_tbl          temporary table to be represetned by IS.table
+ @return          Operation status
+   @retval        0   - success
+   @retval        1   - failure
+*/
+void process_i_s_table_temporary_tables(THD *thd, TABLE * table, TABLE *tmp_tbl)
+{
+  TABLE_LIST table_list;
+  bzero((char*) &table_list, sizeof(TABLE_LIST));
+  table_list.table= tmp_tbl;
+  get_schema_tables_record(thd, &table_list, table,
+                           0, &tmp_tbl->s->db, &tmp_tbl->s->table_name);
+}
+
+
 /**
   @brief    Store field characteristics into appropriate I_S table columns