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############## mysql-test\t\myisam_data_pointer_size_func.test ################
# #
# Variable Name: myisam_data_pointer_size #
# Scope: GLOBAL & SESSION #
# Access Type: Dynamic #
# Data Type: Numeric #
# Default Value: 1 #
# Range: 1 - 65536 #
# #
# #
# Creation Date: 2008-03-08 #
# Author: Rizwan Maredia #
# #
# Description: Test Cases of Dynamic System Variable myisam_data_pointer_size #
# that checks the behavior of this variable #
# #
# Reference: http://dev.mysql.com/doc/refman/5.1/en/ #
# server-system-variables.html #
# #
################################################################################
--echo '#--------------------FN_DYNVARS_093_01-------------------------#'
###############################################################################
# Check if setting myisam_data_pointer_size is changed in every new connection#
###############################################################################
SET @@global.myisam_data_pointer_size = 2;
# con1 will be default connection from now on
--echo 'connect (con1,localhost,root,,,,)'
connect (con1,localhost,root,,,,);
--echo 'connection con1'
connection con1;
SELECT @@global.myisam_data_pointer_size;
SET @@global.myisam_data_pointer_size = 3;
--echo 'connect (con2,localhost,root,,,,)'
connect (con2,localhost,root,,,,);
--echo 'connection con2'
connection con2;
SELECT @@global.myisam_data_pointer_size;
disconnect con2;
--echo '#--------------------FN_DYNVARS_093_02-------------------------#'
#################################################################
# Begin the functionality Testing of myisam_data_pointer_size #
#################################################################
--echo 'connection con1'
connection con1;
#===========================================================
# Checking myisam_data_pointer_size is 2
#===========================================================
# create sp to add 'count' records
--disable_warnings
DROP PROCEDURE IF EXISTS sp_addRec;
DROP TABLE IF EXISTS t1;
--enable_warnings
DELIMITER //;
CREATE PROCEDURE sp_addRec(IN count INT)
BEGIN
WHILE (count>0) DO
INSERT INTO t1 value(1);
SET count = count -1;
END WHILE;
END //
DELIMITER ;//
# setting 2 will allow data pointer to access files with size < 65536
SET @@global.myisam_data_pointer_size = 2;
CREATE TABLE t1(a INT);
CALL sp_addRec(65535);
--Error ER_RECORD_FILE_FULL
CALL sp_addRec(1);
SELECT count(*) from t1;
#=======================================================================
--echo '--Checking myisam_data_pointer_size with MAX_ROWS table option--'
#=======================================================================
# specifying MAX_ROWS table option renders pointer size useless
SET @@global.myisam_data_pointer_size = 2;
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1(a INT)MAX_ROWS=70000;
CALL sp_addRec(65536);
SELECT count(*) from t1;
DROP PROCEDURE sp_addRec;
DROP TABLE t1;
################################################################
# End of functionality Testing for myisam_data_pointer_size #
################################################################
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