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############ mysql-test\t\updatable_views_with_limit_func.test #################
# #
#Variable Name: updatable_views_with_limit #
#Scope: SESSION #
#Access Type: Dynamic #
#Data Type: Enumeration #
#Default Value: - #
#Values: - #
# #
# #
#Creation Date: 2008-03-02 #
#Author: Sharique Abdullah #
# #
#Description: Test Cases of Dynamic System Variable "updatable_views_with_limit#
# that checks behavior of this variable in the following ways #
# * Functionality based on different values #
# #
#Reference: http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html#
#option_mysqld_updatable_views_with_limit #
# #
################################################################################
#
# Setup
#
SET @session_updatable_views_with_limit = @@Session.UPDATABLE_VIEWS_WITH_LIMIT;
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
################################
# Creating table #
################################
CREATE TABLE t1 (a INT, b INT, c INT, PRIMARY KEY(a,b));
##################################
# Inserting values in the table #
##################################
INSERT INTO t1 VALUES (10,2,-1), (20,3,-2),
(30,4,-3), (40,5,-4);
####################################
# Creating views #
####################################
CREATE VIEW v1 (x,y) AS SELECT a, c FROM t1;
--echo ** Connecting test_con1 using username 'root' **
CONNECT (test_con1,localhost,root,,);
--echo ** Connection test_con1 **
CONNECTION test_con1;
SET @@Session.UPDATABLE_VIEWS_WITH_LIMIT=YES;
#
# Testing WITH a limit clause
#
--echo Warning expected, 'View does not contain complete key of the table'
UPDATE v1 SET x=x+6 LIMIT 1;
SELECT * FROM t1;
#
# Testing WITHOUT a limit clause
#
UPDATE v1 SET x=x+5;
SELECT * FROM t1;
--echo ** Connecting test_con2 using username 'root' **
CONNECT (test_con2,localhost,root,,);
--echo ** Connection test_con2 **
CONNECTION test_con2;
SET @@Session.UPDATABLE_VIEWS_WITH_LIMIT=NO;
SELECT @@SESSION.UPDATABLE_VIEWS_WITH_LIMIT;
--ERROR ER_NON_UPDATABLE_TABLE
UPDATE v1 SET x=x+10 LIMIT 1;
--echo Expected error 'Non updatable table'
SELECT * FROM t1;
--echo '#---------------------FN_DYNVARS_039_01----------------------#'
######################################
# Setting value to NO #
######################################
SET UPDATABLE_VIEWS_WITH_LIMIT=NO;
-- error ER_NON_UPDATABLE_TABLE
UPDATE v1 SET x=x+1 LIMIT 1;
--echo Expected error 'Non updatable table'
SET UPDATABLE_VIEWS_WITH_LIMIT=0;
-- error ER_NON_UPDATABLE_TABLE
UPDATE v1 SET x=x+1 LIMIT 1;
--echo Expected error 'Non updatable table'
--echo '#---------------------FN_DYNVARS_039_02----------------------#'
######################################
# Setting value to Default #
######################################
--echo Warning expected, 'View does not contain complete key of the table'
SET UPDATABLE_VIEWS_WITH_LIMIT=DEFAULT;
UPDATE v1 SET x=x+1 LIMIT 1;
--echo Warning expected, 'View does not contain complete key of the table'
SET UPDATABLE_VIEWS_WITH_LIMIT=YES;
UPDATE v1 SET x=x+2 LIMIT 1;
#
# Cleanup
#
--echo ** Connection default **
connection default;
--echo ** Disconnecting test_con1, test_con2 **
disconnect test_con1;
disconnect test_con2;
SET @@SESSION.updatable_views_with_limit = @session_updatable_views_with_limit;
--disable_warnings
DROP VIEW IF EXISTS v1;
DROP TABLE IF EXISTS t1;
--enable_warnings