############# mysql-test\t\query_prealloc_size_func.test ######################
#                                                                             #
# Variable Name: query_prealloc_size                                          #
# Scope: GLOBAL & SESSION                                                     #
# Access Type: Dynamic                                                        #
# Data Type: integer                                                          #
# Default Value: 8192                                                         #
# Values: 8192-4294967295                                                     #
#                                                                             #
#                                                                             #
# Creation Date: 2008-02-22                                                   #
# Author:  Sharique Abdullah                                                  #
#                                                                             #
# Description: Test Cases of Dynamic System Variable "query_prealloc_size"    #
#              that checks behavior of this variable in the following ways    #
#              * Default Value                                                #
#              * Valid & Invalid values                                       #
#              * Scope & Access method                                        #
#              * Cache behaviors                                              #
#                                                                             #
# Reference:                                                                  #
#   http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html       #
#                                                                             #
###############################################################################



--echo ** Setup **
--echo
#
# Setup
#

#
# Save initial value
#

SET @start_value = @@global.query_prealloc_size;

CREATE TABLE t1 (id INT AUTO_INCREMENT PRIMARY KEY, val TEXT(200));

INSERT INTO t1 VALUES(NULL,'a');
INSERT INTO t1 VALUES(NULL,'b');
INSERT INTO t1 VALUES(NULL,'c');
INSERT INTO t1 VALUES(NULL,'d');

SELECT * FROM t1 ORDER BY val;

SET SESSION query_prealloc_size = 8192;


--echo '#----------------------------FN_DYNVARS_137_05-----------------#'
#
# Session data integrity check & GLOBAL Value check
#

SET GLOBAL query_prealloc_size = 8192;

connect (con_int1,localhost,root,,);
connection con_int1;

SELECT @@SESSION.query_prealloc_size;
--echo Expected Value : 8192;
SET SESSION query_prealloc_size = 16384;

connect (con_int2,localhost,root,,);
connection con_int2;

SELECT @@SESSION.query_prealloc_size;
--echo Expected Value : 8192;

SET SESSION query_prealloc_size = 8192;

connection con_int1;
SELECT @@SESSION.query_prealloc_size;
--echo Expected Value : 16384;

connection con_int2;
SELECT @@SESSION.query_prealloc_size;
--echo Expected Value : 8192;

SELECT @@GLOBAL.query_prealloc_size;
--echo Expected Value : 8192;

connection default;
disconnect con_int1;
disconnect con_int2;

DROP TABLE t1;

SET @@global.query_prealloc_size = @start_value;

