mariadb/mysql-test/suite/sys_vars/t/concurrent_insert_func.test

############## mysql-test\t\concurrent_insert_basic.test #######################
#                                                                              #
# Variable Name: concurrent_insert                                             #
# Scope: GLOBAL                                                                #
# Access Type: Dynamic                                                         #
# Data Type: Boolean & Numeric                                                 #
# Default Value: 1                                                             #
# Valid Values: 0,1 & 2                                                        #
#                                                                              #
#                                                                              #
# Creation Date: 2008-03-07                                                    #
# Author:  Salman Rawala                                                       #
#                                                                              #
# Modified: HHunger 2009-02-23 Inserted a wait condition right after the       #
#                              "INSERT ..record_6" to wait for the end of      #
#                              the insert.                                     #
#           mleich This test needs some inporovements                          #
#                                                                              #
# Description: Test Cases of Dynamic System Variable "concurrent_insert"       #
#              that checks functionality of this variable                      #
#                                                                              #
# Reference:                                                                   #
#    http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html       #
#                                                                              #
################################################################################

--source include/not_embedded.inc

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

#########################
#   Creating new table  #
#########################

--echo ## Creating new table ##
CREATE TABLE t1
(
name VARCHAR(30)
);

--echo '#--------------------FN_DYNVARS_018_01-------------------------#'
####################################################################
#    Setting initial value of concurrent_insert to 1
#    concurrent_insert = 1 means Enables concurrent insert
#    for MyISAM tables that don't have holes
####################################################################

SET @start_value= @@global.concurrent_insert;

--echo ## Setting initial value of variable to 1 ##
SET @@global.concurrent_insert = 1;
INSERT INTO t1(name) VALUES('Record_1');
INSERT INTO t1(name) VALUES('Record_2');
INSERT INTO t1(name) VALUES('Record_3');

--echo ## locking table ##
LOCK TABLE t1 READ LOCAL;

--echo ## Creating new connection to insert some rows in table ##
connect (test_con1,localhost,root,,);
--echo connection test_con1;
connection test_con1;

--echo ## New records should come at the end of all rows ##
INSERT INTO t1(name) VALUES('Record_4');
SELECT * FROM t1;

--echo ## unlocking tables ##
--echo connection default;
connection default;
UNLOCK TABLES;

--echo ## deleting record to create hole in table ##
DELETE FROM t1 WHERE name ='Record_2';


--echo '#--------------------FN_DYNVARS_018_02-------------------------#'
####################################################################
#    Setting initial value of concurrent_insert to 1
#    concurrent_insert = 1 and trying to insert some values
#    in MyISAM tables that have holes
####################################################################
# lock table and connect with connection1
LOCK TABLE t1 READ LOCAL;
--echo connection test_con1;
connection test_con1;

# setting value of concurrent_insert to 1
SET @@global.concurrent_insert=1;

--echo ## send INSERT which should be blocked until unlock of the table ##
send
INSERT INTO t1(name) VALUES('Record_7');

--echo connection default;
connection default;
# wait until INSERT will be locked (low performance)
let $wait_condition= SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST
                     WHERE state= "Table Lock" AND info LIKE "INSERT INTO t1%";
--source include/wait_condition.inc

--echo ## show processlist info and state ##
SELECT state,info FROM INFORMATION_SCHEMA.PROCESSLIST
WHERE state= "Table Lock" AND info LIKE "INSERT INTO t1%";
--echo ## table contents befor UNLOCK ##
SELECT * FROM t1;
UNLOCK TABLES;
--echo ## table contens after UNLOCK ##
SELECT * FROM t1;
INSERT INTO t1(name) VALUES('Record_6');
let $wait_condition= SELECT COUNT(*) = 5 FROM t1;
--source include/wait_condition.inc

--echo connection test_con1;
connection test_con1;
# to complete the send above^
reap;
SELECT * FROM t1;
--echo connection default;
connection default;

--echo '#--------------------FN_DYNVARS_018_03-------------------------#'
################################################################################
#    Setting value of concurrent_insert to 2 to verify values after inserting
#    it into table with holes
#    concurrent_insert = 2 means Enables concurrent insert
#    for MyISAM tables that have holes but inserts values at the end of all rows
################################################################################

--echo ## lock table and connect with connection1 ##
LOCK TABLE t1 READ LOCAL;
--echo connection test_con1;
connection test_con1;
--echo ## setting value of concurrent_insert to 2 ##
SET @@global.concurrent_insert=2;

--echo ## Inserting record in table, record should go at the end of the table ##
INSERT INTO t1(name) VALUES('Record_5');
SELECT * FROM t1;
SELECT @@concurrent_insert;

--echo connection default;
connection default;

--echo ## Unlocking table ##
UNLOCK TABLES;

SELECT * FROM t1;

--echo ## Inserting new row, this should go in the hole ##
INSERT INTO t1(name) VALUES('Record_6');
SELECT * FROM t1;

--echo ## connection test_con1 ##

DELETE FROM t1 WHERE name ='Record_3';
SELECT * FROM t1;

--echo ## Dropping table ##
DROP TABLE t1;

--echo ## Disconnecting connection ##
disconnect test_con1;

SET @@global.concurrent_insert= @start_value;