WL#3247,#3248: Adding [GLOBAL|SESSION]_STATUS and [GLOBAL|SESSION]_VARIABLES

 tables to INFORMATION_SCHEMA.


mysql-test/r/information_schema.result:
  WL#3247,#3248: Adding [GLOBAL|SESSION]_STATUS and [GLOBAL|SESSION]_VARIABLES
   tables to INFORMATION_SCHEMA.
   Fixed test cases result (changes are due to the new tables added).
mysql-test/r/information_schema_db.result:
  WL#3247,#3248: Adding [GLOBAL|SESSION]_STATUS and [GLOBAL|SESSION]_VARIABLES
   tables to INFORMATION_SCHEMA.
   Fixed test cases result (changes are due to the new tables added).
mysql-test/r/status.result:
  WL#3247,#3248: Adding [GLOBAL|SESSION]_STATUS and [GLOBAL|SESSION]_VARIABLES
   tables to INFORMATION_SCHEMA.
   Fixed results for added testcases.
mysql-test/r/variables.result:
  WL#3247,#3248: Adding [GLOBAL|SESSION]_STATUS and [GLOBAL|SESSION]_VARIABLES
   tables to INFORMATION_SCHEMA.
   Fixed results for added test cases.
mysql-test/t/status.test:
  WL#3247,#3248: Adding [GLOBAL|SESSION]_STATUS and [GLOBAL|SESSION]_VARIABLES
   tables to INFORMATION_SCHEMA.
   Added test cases.
mysql-test/t/variables.test:
  WL#3247,#3248: Adding [GLOBAL|SESSION]_STATUS and [GLOBAL|SESSION]_VARIABLES
   tables to INFORMATION_SCHEMA.
   Added test cases.
sql/sql_show.cc:
  WL#3247,#3248: Adding [GLOBAL|SESSION]_STATUS and [GLOBAL|SESSION]_VARIABLES
   tables to INFORMATION_SCHEMA.
   Implementation of the new I_S tables.
   Also, show_status_array(): argument 'ucase_names' is added (true means that
   all variable names are to be converted to upper case).
sql/table.h:
  WL#3247,#3248: Adding [GLOBAL|SESSION]_STATUS and [GLOBAL|SESSION]_VARIABLES
   tables to INFORMATION_SCHEMA.
   Implementation of the new I_S tables.

mysql-test/r/information_schema.result

@@ -46,6 +46,8 @@ COLUMN_PRIVILEGES
 ENGINES
 EVENTS
 FILES
+GLOBAL_STATUS
+GLOBAL_VARIABLES
 KEY_COLUMN_USAGE
 PARTITIONS
 PLUGINS
@@ -54,6 +56,8 @@ REFERENTIAL_CONSTRAINTS
 ROUTINES
 SCHEMATA
 SCHEMA_PRIVILEGES
+SESSION_STATUS
+SESSION_VARIABLES
 STATISTICS
 TABLES
 TABLE_CONSTRAINTS
@@ -758,6 +762,7 @@ table_schema	table_name	column_name
 information_schema	COLUMNS	COLUMN_TYPE
 information_schema	EVENTS	EVENT_DEFINITION
 information_schema	EVENTS	SQL_MODE
+information_schema	GLOBAL_VARIABLES	VARIABLE_VALUE
 information_schema	PARTITIONS	PARTITION_EXPRESSION
 information_schema	PARTITIONS	SUBPARTITION_EXPRESSION
 information_schema	PARTITIONS	PARTITION_DESCRIPTION
@@ -765,6 +770,7 @@ information_schema	PLUGINS	PLUGIN_DESCRIPTION
 information_schema	PROCESSLIST	INFO
 information_schema	ROUTINES	ROUTINE_DEFINITION
 information_schema	ROUTINES	SQL_MODE
+information_schema	SESSION_VARIABLES	VARIABLE_VALUE
 information_schema	TRIGGERS	ACTION_CONDITION
 information_schema	TRIGGERS	ACTION_STATEMENT
 information_schema	TRIGGERS	SQL_MODE
@@ -847,7 +853,7 @@ delete from mysql.db where user='mysqltest_4';
 flush privileges;
 SELECT table_schema, count(*) FROM information_schema.TABLES where TABLE_SCHEMA!='cluster' GROUP BY TABLE_SCHEMA;
 table_schema	count(*)
-information_schema	23
+information_schema	27
 mysql	21
 create table t1 (i int, j int);
 create trigger trg1 before insert on t1 for each row
@@ -1240,6 +1246,8 @@ COLUMN_PRIVILEGES	TABLE_SCHEMA
 ENGINES	ENGINE
 EVENTS	EVENT_SCHEMA
 FILES	TABLE_SCHEMA
+GLOBAL_STATUS	VARIABLE_NAME
+GLOBAL_VARIABLES	VARIABLE_NAME
 KEY_COLUMN_USAGE	CONSTRAINT_SCHEMA
 PARTITIONS	TABLE_SCHEMA
 PLUGINS	PLUGIN_NAME
@@ -1248,6 +1256,8 @@ REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA
 ROUTINES	ROUTINE_SCHEMA
 SCHEMATA	SCHEMA_NAME
 SCHEMA_PRIVILEGES	TABLE_SCHEMA
+SESSION_STATUS	VARIABLE_NAME
+SESSION_VARIABLES	VARIABLE_NAME
 STATISTICS	TABLE_SCHEMA
 TABLES	TABLE_SCHEMA
 TABLE_CONSTRAINTS	CONSTRAINT_SCHEMA
@@ -1278,6 +1288,8 @@ COLUMN_PRIVILEGES	TABLE_SCHEMA
 ENGINES	ENGINE
 EVENTS	EVENT_SCHEMA
 FILES	TABLE_SCHEMA
+GLOBAL_STATUS	VARIABLE_NAME
+GLOBAL_VARIABLES	VARIABLE_NAME
 KEY_COLUMN_USAGE	CONSTRAINT_SCHEMA
 PARTITIONS	TABLE_SCHEMA
 PLUGINS	PLUGIN_NAME
@@ -1286,6 +1298,8 @@ REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA
 ROUTINES	ROUTINE_SCHEMA
 SCHEMATA	SCHEMA_NAME
 SCHEMA_PRIVILEGES	TABLE_SCHEMA
+SESSION_STATUS	VARIABLE_NAME
+SESSION_VARIABLES	VARIABLE_NAME
 STATISTICS	TABLE_SCHEMA
 TABLES	TABLE_SCHEMA
 TABLE_CONSTRAINTS	CONSTRAINT_SCHEMA

mysql-test/r/information_schema_db.result

@@ -13,6 +13,8 @@ COLUMN_PRIVILEGES
 ENGINES
 EVENTS
 FILES
+GLOBAL_STATUS
+GLOBAL_VARIABLES
 KEY_COLUMN_USAGE
 PARTITIONS
 PLUGINS
@@ -21,6 +23,8 @@ REFERENTIAL_CONSTRAINTS
 ROUTINES
 SCHEMATA
 SCHEMA_PRIVILEGES
+SESSION_STATUS
+SESSION_VARIABLES
 STATISTICS
 TABLES
 TABLE_CONSTRAINTS

mysql-test/r/status.result

@@ -3,6 +3,10 @@ show status like 'Table_lock%';
 Variable_name	Value
 Table_locks_immediate	0
 Table_locks_waited	0
+select * from information_schema.session_status where variable_name like 'Table_lock%';
+VARIABLE_NAME	VARIABLE_VALUE
+TABLE_LOCKS_IMMEDIATE	0.0000000
+TABLE_LOCKS_WAITED	0.0000000
 SET SQL_LOG_BIN=0;
 drop table if exists t1;
 create table t1(n int) engine=myisam;
@@ -16,6 +20,10 @@ show status like 'Table_lock%';
 Variable_name	Value
 Table_locks_immediate	3
 Table_locks_waited	1
+select * from information_schema.session_status where variable_name like 'Table_lock%';
+VARIABLE_NAME	VARIABLE_VALUE
+TABLE_LOCKS_IMMEDIATE	3.0000000
+TABLE_LOCKS_WAITED	1.0000000
 drop table t1;
 select 1;
 1
@@ -53,21 +61,36 @@ FLUSH STATUS;
 SHOW STATUS LIKE 'max_used_connections';
 Variable_name	Value
 Max_used_connections	2
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
+VARIABLE_NAME	VARIABLE_VALUE
+MAX_USED_CONNECTIONS	2.0000000
 SET @save_thread_cache_size=@@thread_cache_size;
 SET GLOBAL thread_cache_size=3;
 SHOW STATUS LIKE 'max_used_connections';
 Variable_name	Value
 Max_used_connections	4
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
+VARIABLE_NAME	VARIABLE_VALUE
+MAX_USED_CONNECTIONS	4.0000000
 FLUSH STATUS;
 SHOW STATUS LIKE 'max_used_connections';
 Variable_name	Value
 Max_used_connections	3
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
+VARIABLE_NAME	VARIABLE_VALUE
+MAX_USED_CONNECTIONS	3.0000000
 SHOW STATUS LIKE 'max_used_connections';
 Variable_name	Value
 Max_used_connections	4
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
+VARIABLE_NAME	VARIABLE_VALUE
+MAX_USED_CONNECTIONS	4.0000000
 SHOW STATUS LIKE 'max_used_connections';
 Variable_name	Value
 Max_used_connections	5
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
+VARIABLE_NAME	VARIABLE_VALUE
+MAX_USED_CONNECTIONS	5.0000000
 SET GLOBAL thread_cache_size=@save_thread_cache_size;
 show status like 'com_show_status';
 Variable_name	Value

mysql-test/t/status.test

@@ -13,6 +13,7 @@ connect (con2,localhost,root,,);
 
 flush status;
 show status like 'Table_lock%';
+select * from information_schema.session_status where variable_name like 'Table_lock%';
 connection con1;
 SET SQL_LOG_BIN=0;
 --disable_warnings
@@ -34,6 +35,7 @@ unlock tables;
 connection con1;
 reap;
 show status like 'Table_lock%';
+select * from information_schema.session_status where variable_name like 'Table_lock%';
 drop table t1;
 
 disconnect con2;
@@ -102,6 +104,7 @@ while ($wait_more)
 
 # Prerequisite.
 SHOW STATUS LIKE 'max_used_connections';
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
 
 # Save original setting.
 SET @save_thread_cache_size=@@thread_cache_size;
@@ -115,6 +118,7 @@ disconnect con2;
 
 # Check that max_used_connections still reflects maximum value.
 SHOW STATUS LIKE 'max_used_connections';
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
 
 # Check that after flush max_used_connections equals to current number
 # of connections.  First wait for previous disconnect to finish.
@@ -138,15 +142,18 @@ while ($wait_more)
 --enable_result_log
 # Check that we don't count disconnected thread any longer.
 SHOW STATUS LIKE 'max_used_connections';
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
 
 # Check that max_used_connections is updated when cached thread is
 # reused...
 connect (con2,localhost,root,,);
 SHOW STATUS LIKE 'max_used_connections';
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
 
 # ...and when new thread is created.
 connect (con3,localhost,root,,);
 SHOW STATUS LIKE 'max_used_connections';
+SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
 
 # Restore original setting.
 connection default;

mysql-test/t/variables.test

@@ -83,16 +83,24 @@ drop table t1;
 set GLOBAL max_join_size=10;
 set max_join_size=100;
 show variables like 'max_join_size';
+select * from information_schema.session_variables where variable_name like 'max_join_size';
 --replace_result 18446744073709551615 HA_POS_ERROR 4294967295 HA_POS_ERROR
 show global variables like 'max_join_size';
+--replace_result 18446744073709551615 HA_POS_ERROR 4294967295 HA_POS_ERROR
+select * from information_schema.global_variables where variable_name like 'max_join_size';
 set GLOBAL max_join_size=2000;
 show global variables like 'max_join_size';
+select * from information_schema.global_variables where variable_name like 'max_join_size';
 set max_join_size=DEFAULT;
 --replace_result 18446744073709551615 HA_POS_ERROR 4294967295 HA_POS_ERROR
 show variables like 'max_join_size';
+--replace_result 18446744073709551615 HA_POS_ERROR 4294967295 HA_POS_ERROR
+select * from information_schema.session_variables where variable_name like 'max_join_size';
 set GLOBAL max_join_size=DEFAULT;
 --replace_result 18446744073709551615 HA_POS_ERROR 4294967295 HA_POS_ERROR
 show global variables like 'max_join_size';
+--replace_result 18446744073709551615 HA_POS_ERROR 4294967295 HA_POS_ERROR
+select * from information_schema.global_variables where variable_name like 'max_join_size';
 set @@max_join_size=1000, @@global.max_join_size=2000;
 select @@local.max_join_size, @@global.max_join_size;
 select @@identity,  length(@@version)>0;
@@ -106,50 +114,68 @@ set big_tables=OFF, big_tables=ON, big_tables=0, big_tables=1, big_tables="OFF",
 
 set global concurrent_insert=2;
 show variables like 'concurrent_insert';
+select * from information_schema.session_variables where variable_name like 'concurrent_insert';
 set global concurrent_insert=1;
 show variables like 'concurrent_insert';
+select * from information_schema.session_variables where variable_name like 'concurrent_insert';
 set global concurrent_insert=0;
 show variables like 'concurrent_insert';
+select * from information_schema.session_variables where variable_name like 'concurrent_insert';
 set global concurrent_insert=DEFAULT;
 select @@concurrent_insert;
 
 set global timed_mutexes=ON;
 show variables like 'timed_mutexes';
+select * from information_schema.session_variables where variable_name like 'timed_mutexes';
 set global timed_mutexes=0;
 show variables like 'timed_mutexes';
+select * from information_schema.session_variables where variable_name like 'timed_mutexes';
 
 set storage_engine=MYISAM, storage_engine="HEAP", global storage_engine="MERGE";
 show local variables like 'storage_engine';
+select * from information_schema.session_variables where variable_name like 'storage_engine';
 show global variables like 'storage_engine';
+select * from information_schema.global_variables where variable_name like 'storage_engine';
 set GLOBAL query_cache_size=100000;
 
 set GLOBAL myisam_max_sort_file_size=2000000;
 show global variables like 'myisam_max_sort_file_size';
+select * from information_schema.global_variables where variable_name like 'myisam_max_sort_file_size';
 set GLOBAL myisam_max_sort_file_size=default;
 --replace_result 2147483647 FILE_SIZE 9223372036854775807 FILE_SIZE
 show variables like 'myisam_max_sort_file_size';
+--replace_result 2147483647 FILE_SIZE 9223372036854775807 FILE_SIZE
+select * from information_schema.session_variables where variable_name like 'myisam_max_sort_file_size';
 
 set global net_retry_count=10, session net_retry_count=10;
 set global net_buffer_length=1024, net_write_timeout=200, net_read_timeout=300;
 set session net_buffer_length=2048, net_write_timeout=500, net_read_timeout=600;
 show global variables like 'net_%';
+select * from information_schema.global_variables where variable_name like 'net_%';
 show session variables like 'net_%';
+select * from information_schema.session_variables where variable_name like 'net_%';
 set session net_buffer_length=8000, global net_read_timeout=900, net_write_timeout=1000;
 show global variables like 'net_%';
+select * from information_schema.global_variables where variable_name like 'net_%';
 show session variables like 'net_%';
+select * from information_schema.session_variables where variable_name like 'net_%';
 set net_buffer_length=1;
 show variables like 'net_buffer_length';
+select * from information_schema.session_variables where variable_name like 'net_buffer_length';
 set net_buffer_length=2000000000;
 show variables like 'net_buffer_length';
+select * from information_schema.session_variables where variable_name like 'net_buffer_length';
 
 set character set cp1251_koi8;
 show variables like "character_set_client";
+select * from information_schema.session_variables where variable_name like 'character_set_client';
 select @@timestamp>0;
 
 set @@rand_seed1=10000000,@@rand_seed2=1000000;
 select ROUND(RAND(),5);
 
 show variables like '%alloc%';
+select * from information_schema.session_variables where variable_name like '%alloc%';
 set @@range_alloc_block_size=1024*16;
 set @@query_alloc_block_size=1024*17+2;
 set @@query_prealloc_size=1024*18;
@@ -157,10 +183,12 @@ set @@transaction_alloc_block_size=1024*20-1;
 set @@transaction_prealloc_size=1024*21-1;
 select @@query_alloc_block_size;
 show variables like '%alloc%';
+select * from information_schema.session_variables where variable_name like '%alloc%';
 set @@range_alloc_block_size=default;
 set @@query_alloc_block_size=default, @@query_prealloc_size=default;
 set transaction_alloc_block_size=default, @@transaction_prealloc_size=default;
 show variables like '%alloc%';
+select * from information_schema.session_variables where variable_name like '%alloc%';
 
 #
 # Bug #10904 Illegal mix of collations between
@@ -363,6 +391,8 @@ set global ft_boolean_syntax = @@init_connect;
 set global myisam_max_sort_file_size=4294967296;
 --replace_result 4294967296 MAX_FILE_SIZE 2146435072 MAX_FILE_SIZE
 show global variables like 'myisam_max_sort_file_size';
+--replace_result 4294967296 MAX_FILE_SIZE 2146435072 MAX_FILE_SIZE
+select * from information_schema.global_variables where variable_name like 'myisam_max_sort_file_size';
 set global myisam_max_sort_file_size=default;
 
 #
@@ -398,12 +428,16 @@ SELECT @@global.local.key_buffer_size;
 # BUG#5135: cannot turn on log_warnings with SET in 4.1 (and 4.0)
 set @tstlw = @@log_warnings;
 show global variables like 'log_warnings';
+select * from information_schema.global_variables where variable_name like 'log_warnings';
 set global log_warnings = 0;
 show global variables like 'log_warnings';
+select * from information_schema.global_variables where variable_name like 'log_warnings';
 set global log_warnings = 42;
 show global variables like 'log_warnings';
+select * from information_schema.global_variables where variable_name like 'log_warnings';
 set global log_warnings = @tstlw;
 show global variables like 'log_warnings';
+select * from information_schema.global_variables where variable_name like 'log_warnings';
 
 #
 # BUG#4788 show create table provides incorrect statement
@@ -435,6 +469,7 @@ drop table t1;
 
 SET GLOBAL MYISAM_DATA_POINTER_SIZE= 7;
 SHOW VARIABLES LIKE 'MYISAM_DATA_POINTER_SIZE';
+SELECT * FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME LIKE 'MYISAM_DATA_POINTER_SIZE';
 
 #
 # Bug #6958: negative arguments to integer options wrap around
@@ -442,6 +477,7 @@ SHOW VARIABLES LIKE 'MYISAM_DATA_POINTER_SIZE';
 
 SET GLOBAL table_open_cache=-1;
 SHOW VARIABLES LIKE 'table_open_cache';
+SELECT * FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME LIKE 'table_open_cache';
 SET GLOBAL table_open_cache=DEFAULT;
 
 #
@@ -527,6 +563,7 @@ select @@global.character_set_filesystem;
 set @old_sql_big_selects = @@sql_big_selects;
 set @@sql_big_selects = 1;
 show variables like 'sql_big_selects';
+select * from information_schema.session_variables where variable_name like 'sql_big_selects';
 set @@sql_big_selects = @old_sql_big_selects;
 
 #
@@ -535,10 +572,14 @@ set @@sql_big_selects = @old_sql_big_selects;
 # 
 set @@sql_notes = 0, @@sql_warnings = 0;
 show variables like 'sql_notes';
+select * from information_schema.session_variables where variable_name like 'sql_notes';
 show variables like 'sql_warnings';
+select * from information_schema.session_variables where variable_name like 'sql_warnings';
 set @@sql_notes = 1, @@sql_warnings = 1;
 show variables like 'sql_notes';
+select * from information_schema.session_variables where variable_name like 'sql_notes';
 show variables like 'sql_warnings';
+select * from information_schema.session_variables where variable_name like 'sql_warnings';
 
 #
 # Bug #12792: @@system_time_zone is not SELECTable.
@@ -565,9 +606,15 @@ select @@basedir, @@datadir, @@tmpdir;
 --replace_column 2 #
 show variables like 'basedir';
 --replace_column 2 #
+select * from information_schema.session_variables where variable_name like 'basedir';
+--replace_column 2 #
 show variables like 'datadir';
 --replace_column 2 #
+select * from information_schema.session_variables where variable_name like 'datadir';
+--replace_column 2 #
 show variables like 'tmpdir';
+--replace_column 2 #
+select * from information_schema.session_variables where variable_name like 'tmpdir';
 
 #
 # Bug #19606: make ssl settings available via SHOW VARIABLES and @@variables
@@ -577,6 +624,8 @@ show variables like 'tmpdir';
 select @@ssl_ca, @@ssl_capath, @@ssl_cert, @@ssl_cipher, @@ssl_key;
 --replace_column 2 #
 show variables like 'ssl%';
+--replace_column 2 #
+select * from information_schema.session_variables where variable_name like 'ssl%';
 
 #
 # Bug #19616: make log_queries_not_using_indexes available in SHOW VARIABLES
@@ -584,6 +633,7 @@ show variables like 'ssl%';
 #
 select @@log_queries_not_using_indexes;
 show variables like 'log_queries_not_using_indexes';
+select * from information_schema.session_variables where variable_name like 'log_queries_not_using_indexes';
 
 --echo End of 5.0 tests
 

sql/table.h

@@ -474,6 +474,8 @@ enum enum_schema_tables
   SCH_ENGINES,
   SCH_EVENTS,
   SCH_FILES,
+  SCH_GLOBAL_STATUS,
+  SCH_GLOBAL_VARIABLES,
   SCH_KEY_COLUMN_USAGE,
   SCH_OPEN_TABLES,
   SCH_PARTITIONS,
@@ -483,6 +485,8 @@ enum enum_schema_tables
   SCH_PROCEDURES,
   SCH_SCHEMATA,
   SCH_SCHEMA_PRIVILEGES,
+  SCH_SESSION_STATUS,
+  SCH_SESSION_VARIABLES,
   SCH_STATISTICS,
   SCH_STATUS,
   SCH_TABLES,