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############# 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#option_mysqld_query_prealloc_size #
# #
###############################################################################
--echo ** Setup **
--echo
#
# Setup
#
#
# Save initial value
#
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;
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