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auto_increment_increment_func.test
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############## mysql-test\t\auto_increment_increment_func.test ################
# #
# Variable Name: auto_increment_increment #
# Scope: GLOBAL & SESSION #
# Access Type: Dynamic #
# Data Type: Numeric #
# Default Value: 1 #
# Range: 1 - 65536 #
# #
# #
# Creation Date: 2008-03-07 #
# Author: Salman Rawala #
# #
# Description: Test Cases of Dynamic System Variable "auto_increment_increment"#
# that checks functionality of this variable #
# #
# Reference: http://dev.mysql.com/doc/refman/5.1/en/ #
# server-system-variables.html#option_mysqld_auto-increment-increment #
# #
################################################################################
--source include/force_myisam_default.inc
# Skip the test if MyISAM is not available
--source include/have_myisam.inc
# save vars
SET @global_auto_increment_increment = @@global.auto_increment_increment;
SET @session_auto_increment_increment = @@session.auto_increment_increment;
SET @global_auto_increment_offset = @@global.auto_increment_offset;
SET @session_auto_increment_offset = @@session.auto_increment_offset;
--disable_warnings
drop table if exists t1;
--enable_warnings
#########################
# Creating new table #
#########################
CREATE TABLE t1
(
id INT NOT NULL auto_increment,
PRIMARY KEY (id),
name VARCHAR(30)
);
--echo '#--------------------FN_DYNVARS_001_01-------------------------#'
##########################################################
# Setting initial value of auto_increment_increment #
##########################################################
--echo ## Setting initial value of auto_increment_increment to 5 ##
SET @@auto_increment_increment = 5;
--echo '#--------------------FN_DYNVARS_001_02-------------------------#'
###########################################################################
# Inserting first value in table to check auto_increment_increment initial
# behavior
###########################################################################
--echo ## Inserting first record in table to check behavior of the variable ##
INSERT into t1(name) values('Record_1');
SELECT * from t1;
--echo ## Changing value of variable to 10 ##
SET @@global.auto_increment_increment = 10;
--echo ## Inserting record and verifying value of column id ##
INSERT into t1(name) values('Record_2');
SELECT * from t1;
--echo ## Test behavior of variable after assigning some larger value to it ##
SELECT @@auto_increment_increment;
SET @@auto_increment_increment = 100;
INSERT into t1(name) values('Record_5');
SELECT * from t1;
--echo '#--------------------FN_DYNVARS_001_03-------------------------#'
##########################################################
# Test behavior of variable on new connection # 01 #
##########################################################
--echo ## Creating new connection test_con1 ##
CONNECT (test_con1,localhost,root,,);
CONNECTION test_con1;
--echo ## Value of session & global vairable here should be 10 ##
SELECT @@global.auto_increment_increment = 10;
SELECT @@session.auto_increment_increment = 10;
--echo ## Setting global value of variable and inserting data in table ##
SET @@global.auto_increment_increment = 20;
SELECT @@global.auto_increment_increment;
INSERT into t1(name) values('Record_6');
SELECT * from t1;
--echo ## Setting session value of variable and inserting data in table ##
SET @@session.auto_increment_increment = 2;
SELECT @@session.auto_increment_increment;
INSERT into t1(name) values('Record_8');
INSERT into t1(name) values('Record_9');
SELECT * from t1;
--echo '#--------------------FN_DYNVARS_001_04-------------------------#'
##########################################################
# Test behavior of variable on new connection # 02 #
##########################################################
--echo ## Creating another new connection test_con2 ##
CONNECT (test_con2,localhost,root,,);
connection test_con2;
--echo ## Verifying initial values of variable in global & session scope ##
--echo ## global & session initial value should be 20 ##
SELECT @@global.auto_increment_increment = 20;
SELECT @@session.auto_increment_increment = 20;
--echo ## Setting value of session variable to 5 and verifying its behavior ##
SET @@session.auto_increment_increment = 5;
INSERT into t1(name) values('Record_10');
SELECT * from t1;
SET @@session.auto_increment_increment = 1;
SELECT @@auto_increment_increment;
SELECT @@global.auto_increment_increment;
--echo '#--------------------FN_DYNVARS_001_05-------------------------#'
#####################################################################
# Verify variable's value of connection # 01 after processing on
# connection # 02
#####################################################################
--echo ## Switching to test_con1 ##
connection test_con1;
--echo ## Verifying values of global & session value of variable ##
--echo ## global value should be 20 ##
SELECT @@global.auto_increment_increment = 20;
--echo ## session value should be 2 ##
SELECT @@session.auto_increment_increment = 2;
INSERT into t1(name) values('Record_11');
INSERT into t1(name) values('Record_12');
SELECT * from t1;
--echo '#--------------------FN_DYNVARS_001_06-------------------------#'
###############################################################################
# Altering table field to different datatypes and checking their behavior #
###############################################################################
--echo ## Changing column's datatype to SmallInt and verifying variable's behavior ##
ALTER table t1 MODIFY id SMALLINT NOT NULL auto_increment;
INSERT into t1(name) values('Record_13');
INSERT into t1(name) values('Record_14');
SELECT * from t1;
--echo ## Changing column's datatype to BigInt and verifying variable's behavior ##
ALTER table t1 MODIFY id BIGINT NOT NULL auto_increment;
INSERT into t1(name) values('Record_15');
INSERT into t1(name) values('Record_16');
SELECT * from t1;
--echo '#--------------------FN_DYNVARS_001_07-------------------------#'
###############################################################################
# Check behavior of variable after assigning invalid value #
###############################################################################
--echo ## Verifying behavior of variable with negative value ##
SET @@auto_increment_increment = -10;
INSERT into t1(name) values('Record_17');
INSERT into t1(name) values('Record_18');
SELECT * from t1;
############################################################
# Disconnecting all connection & dropping table #
############################################################
--echo ## Disconnecting test_con2 ##
DISCONNECT test_con2;
--echo ## Dropping table t1 ##
DROP table if exists t1;
--echo ## Disconnecting test_con1 ##
DISCONNECT test_con1;
--echo ## switching to default connection ##
connection default;
# restore vars
SET @@global.auto_increment_increment = @global_auto_increment_increment;
SET @@session.auto_increment_increment = @session_auto_increment_increment;
SET @@global.auto_increment_offset = @global_auto_increment_offset;
SET @@session.auto_increment_offset = @session_auto_increment_offset;