thread_handling_basic.test

################## mysql-test\t\thread_handling_basic.test ####################
#                                                                             #
# Variable Name: thread_handling                                              #
# Scope: Global                                                               #
# Access Type: Static                                                         #
# Data Type: enumeration                                                      #
#                                                                             #
#                                                                             #
# Creation Date: 2008-02-07                                                   #
# Author : Sharique Abdullah                                                      #
#                                                                             #
#                                                                             #
# Description:Test Cases of Dynamic System Variable thread_handling           #
#             that checks the behavior of this variable in the following ways #
#              * Value Check                                                  #
#              * Scope Check                                                  #
#                                                                             #
# Reference: http://dev.mysql.com/doc/refman/5.1/en/                          #
#  server-system-variables.html                                               #
#                                                                             #
###############################################################################

--echo '#---------------------BS_STVARS_051_01----------------------#'
####################################################################
#   Displaying default value                                       #
####################################################################
SELECT COUNT(@@GLOBAL.thread_handling);
--echo 1 Expected


--echo '#---------------------BS_STVARS_051_02----------------------#'
#
# Test case for Bug #35433
#
####################################################################
#   Check if Value can set                                         #
####################################################################


--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SET @@GLOBAL.thread_handling=1;

--ECHO Expected error  ER_INCORRECT_GLOBAL_LOCAL_VAR

SELECT COUNT(@@GLOBAL.thread_handling);
--echo 1 Expected




--echo '#---------------------BS_STVARS_051_03----------------------#'
#################################################################
# Check if the value in GLOBAL Table matches value in variable  #
#################################################################

SELECT @@GLOBAL.thread_handling = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='thread_handling';
--echo 1 Expected

SELECT COUNT(@@GLOBAL.thread_handling);
--echo 1 Expected

SELECT COUNT(VARIABLE_VALUE)
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
WHERE VARIABLE_NAME='thread_handling';
--echo 1 Expected



--echo '#---------------------BS_STVARS_051_04----------------------#'
################################################################################
#  Check if accessing variable with and without GLOBAL point to same variable  #
################################################################################
SELECT @@thread_handling = @@GLOBAL.thread_handling;
--echo 1 Expected



--echo '#---------------------BS_STVARS_051_05----------------------#'
################################################################################
#   Check if thread_handling can be accessed with and without @@ sign          #
################################################################################

SELECT COUNT(@@thread_handling);
--echo 1 Expected

--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@local.thread_handling);
--echo Bug:Variable is global so it can not be accessed by local there should be error ER_INCORRECT_GLOBAL_LOCAL_VAR
--echo Expected error 'Variable is a GLOBAL variable'

--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@SESSION.thread_handling);
--ECHO Bug:Variable is global so it can not be accessed by session there should be error ER_INCORRECT_GLOBAL_LOCAL_VAR
--echo Expected error 'Variable is a GLOBAL variable'

SELECT COUNT(@@GLOBAL.thread_handling);
--echo 1 Expected

--Error ER_BAD_FIELD_ERROR
SELECT thread_handling = @@SESSION.thread_handling;
--echo Expected error 'Readonly variable'