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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

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