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Current File : /www/server/mysql/src/mysql-test/suite/sys_vars/t/innodb_thread_concurrency_basic.test
################# mysql-test\t\innodb_thread_concurrency_basic.test ###########
#                                                                             #
# Variable Name: innodb_thread_concurrency                                    #
# Scope: GLOBAL                                                               #
# Access Type: Dynamic                                                        #
# Data Type: Numeric                                                          #
# Default Value: 0                                                            #
# Range: 0-1000                                                               #
#                                                                             #
#                                                                             #
# Creation Date: 2008-02-07                                                   #
# Author: Rizwan                                                              #
#                                                                             #
#Description:Test Cases of Dynamic System Variable innodb_thread_concurrency  #
#             that checks the behavior of this variable in the following ways #
#              * Default Value                                                #
#              * Valid & Invalid values                                       #
#              * Scope & Access method                                        #
#              * Data Integrity                                               #
#                                                                             #
# Reference: http://dev.mysql.com/doc/refman/5.1/en/                          #
#  server-system-variables.html                                               #
#                                                                             #
###############################################################################

--source include/have_innodb.inc
--source include/load_sysvars.inc

######################################################################## 
#                    START OF innodb_thread_concurrency TESTS          #
######################################################################## 


################################################################################ 
#   Saving initial value of innodb_thread_concurrency in a temporary variable  #
################################################################################ 


SET @global_start_value = @@global.innodb_thread_concurrency;
SELECT @global_start_value;



--echo '#--------------------FN_DYNVARS_046_01------------------------#'
######################################################################## 
#           Display the DEFAULT value of innodb_thread_concurrency     #
########################################################################



SET @@global.innodb_thread_concurrency = 0;
SET @@global.innodb_thread_concurrency = DEFAULT;
SELECT @@global.innodb_thread_concurrency;

--echo '#---------------------FN_DYNVARS_046_02-------------------------#'
###############################################################################
# Check if innodb_thread_concurrency can be accessed with and without @@ sign #
###############################################################################

--Error ER_GLOBAL_VARIABLE
SET innodb_thread_concurrency = 1;
SELECT @@innodb_thread_concurrency;


--Error ER_UNKNOWN_TABLE
SELECT local.innodb_thread_concurrency;


SET global innodb_thread_concurrency = 0;
SELECT @@global.innodb_thread_concurrency;


--echo '#--------------------FN_DYNVARS_046_03------------------------#'
########################################################################## 
#      change the value of innodb_thread_concurrency to a valid value    #
########################################################################## 


SET @@global.innodb_thread_concurrency = 0;
SELECT @@global.innodb_thread_concurrency;

SET @@global.innodb_thread_concurrency = 1;
SELECT @@global.innodb_thread_concurrency;
SET @@global.innodb_thread_concurrency = 1000;
SELECT @@global.innodb_thread_concurrency;

--echo '#--------------------FN_DYNVARS_046_04-------------------------#'
########################################################################### 
#       Change the value of innodb_thread_concurrency to invalid value    #
########################################################################### 

SET @@global.innodb_thread_concurrency = -1;
SELECT @@global.innodb_thread_concurrency;

--Error ER_WRONG_TYPE_FOR_VAR
SET @@global.innodb_thread_concurrency = "T";
SELECT @@global.innodb_thread_concurrency;

--Error ER_WRONG_TYPE_FOR_VAR
SET @@global.innodb_thread_concurrency = "Y";
SELECT @@global.innodb_thread_concurrency;
--Error ER_WRONG_TYPE_FOR_VAR
SET @@global.innodb_thread_concurrency = ' ';
SELECT @@global.innodb_thread_concurrency;
--Error ER_WRONG_TYPE_FOR_VAR
SET @@global.innodb_thread_concurrency = " ";
SELECT @@global.innodb_thread_concurrency;

SET @@global.innodb_thread_concurrency = 1001;
SELECT @@global.innodb_thread_concurrency;

--Error ER_WRONG_TYPE_FOR_VAR
SET @@global.innodb_thread_concurrency = 255.01;
SELECT @@global.innodb_thread_concurrency;

--echo '#----------------------FN_DYNVARS_046_05------------------------#'
######################################################################### 
#     Check if the value in GLOBAL Table matches value in variable      #
#########################################################################

--disable_warnings
SELECT @@global.innodb_thread_concurrency =
 VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
  WHERE VARIABLE_NAME='innodb_thread_concurrency';
--enable_warnings
SELECT @@global.innodb_thread_concurrency;
--disable_warnings
SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='innodb_thread_concurrency';
--enable_warnings

--echo '#---------------------FN_DYNVARS_046_06-------------------------#'
################################################################### 
#        Check if ON and OFF values can be used on variable       #
################################################################### 

--ERROR ER_WRONG_TYPE_FOR_VAR
SET @@global.innodb_thread_concurrency = OFF;
SELECT @@global.innodb_thread_concurrency;

--ERROR ER_WRONG_TYPE_FOR_VAR
SET @@global.innodb_thread_concurrency = ON;
SELECT @@global.innodb_thread_concurrency;

--echo '#---------------------FN_DYNVARS_046_07----------------------#'
################################################################### 
#      Check if TRUE and FALSE values can be used on variable     #
################################################################### 

SET @@global.innodb_thread_concurrency = TRUE;
SELECT @@global.innodb_thread_concurrency;
SET @@global.innodb_thread_concurrency = FALSE;
SELECT @@global.innodb_thread_concurrency;

##############################  
#   Restore initial value    #
##############################

SET @@global.innodb_thread_concurrency = @global_start_value;
SELECT @@global.innodb_thread_concurrency;

###############################################################
#                    END OF innodb_thread_concurrency TESTS   #
############################################################### 

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