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# Example how to use this auxiliary script
#-----------------------------------------
#
### The table/tables used in $part must have the right content.
### $title_prefix is used for the generation of titles
#
# let $title_prefix= 4.3;
### $check_num is used for the generation of titles and gets incremented after
### every call of the current script.
# let $check_num= 1;
### $diff_column_list is used for the generation of error information and valid for
### every sub test.
# let $diff_column_list=
# t2.COUNT_READ - t1.COUNT_READ AS D_COUNT_READ,
# t2.COUNT_READ AS S2_COUNT_READ,
# t1.COUNT_READ AS S1_COUNT_READ,
# t2.SUM_NUMBER_OF_BYTES_READ - t1.SUM_NUMBER_OF_BYTES_READ AS D_SUM_NUMBER_OF_BYTES_READ,
# t2.SUM_NUMBER_OF_BYTES_READ AS S2_SUM_NUMBER_OF_BYTES_READ,
# t1.SUM_NUMBER_OF_BYTES_READ AS S1_SUM_NUMBER_OF_BYTES_READ,
# t2.COUNT_WRITE - t1.COUNT_WRITE AS D_COUNT_WRITE,
# t2.COUNT_WRITE AS S2_COUNT_WRITE,
# t1.COUNT_WRITE AS S1_COUNT_WRITE,
# t2.SUM_NUMBER_OF_BYTES_WRITE - t1.SUM_NUMBER_OF_BYTES_WRITE AS D_UM_NUMBER_OF_BYTES_WRITE,
# t2.SUM_NUMBER_OF_BYTES_WRITE AS S2_SUM_NUMBER_OF_BYTES_WRITE,
# t1.SUM_NUMBER_OF_BYTES_WRITE AS S1_SUM_NUMBER_OF_BYTES_WRITE,
# t2.COUNT_MISC - t1.COUNT_MISC AS D_COUNT_MISC,
# t2.COUNT_MISC AS S2_COUNT_MISC,
# t1.COUNT_MISC AS S1_COUNT_MISC;
### $part is used for the generation of "check" statements + error information
### and valid for every sub test.
# let $part=
# FROM mysqltest.socket_summary_by_instance_detail t1
# JOIN mysqltest.socket_summary_by_instance_detail t2
# USING (EVENT_NAME, OBJECT_INSTANCE_BEGIN, run)
# WHERE OBJECT_INSTANCE_BEGIN <> @default_object_instance_begin
# AND EVENT_NAME LIKE ('%client_connection')
# AND run = 1;
#
# --echo # $title_prefix Check the differences caused by SQL statement
#
# let stmt1= SELECT col2 FROM does_not_exist;
# let stmt2= SELECT col2 FROM does_not_exist WHERE col1 = 0;
### $msg is used to generate some explanation of what we compare.
# let $msg=
# # One statement is longer than the other.
# # Both statements fail with the same error message (table does not exist);
# let $my_rules=
# t2.COUNT_READ - t1.COUNT_READ = 0 AND
# t2.SUM_NUMBER_OF_BYTES_READ - t1.SUM_NUMBER_OF_BYTES_READ = LENGTH('$stmt2') - LENGTH('$stmt1') AND
# t2.COUNT_WRITE - t1.COUNT_WRITE = 0 AND
# t2.SUM_NUMBER_OF_BYTES_WRITE - t1.SUM_NUMBER_OF_BYTES_WRITE = 0 AND
# t2.COUNT_MISC - t1.COUNT_MISC = 0;
# --source ../include/socket_check1.inc
#
# let stmt1= ....
# let stmt2= ....
# let $my_rules= ...
# --source ../include/socket_check1.inc
#
# ...
#
--echo # $title_prefix.$check_num Compare impact of statements
--echo # $stmt2
--echo # $stmt1
--echo # $msg
# Enable this when extending the checks for SQL statements.
if(0)
{
if (`SELECT CONCAT("$stmt1","$stmt2","$my_rules") LIKE '%_not_set%'`)
{
--echo # INTERNAL ERROR:
--echo # At least one of the variables has no value (is like '%_not_set')
--echo # stmt1 : $stmt1
--echo # stmt2 : $stmt2
--echo # my_rules : $my_rules
--echo # Sorry, have to abort
exit;
}
}
if(`SELECT NOT ( $my_rules )
$part
AND t2.statement = '$stmt2' AND t1.statement = '$stmt1'`)
{
--enable_query_log
--enable_result_log
--echo # The compared statistics looks suspicious
--echo # We expect
--echo $my_rules
--echo
--horizontal_results
eval
SELECT $my_rules AS Expect_1
$part
AND t2.statement = '$stmt2' AND t1.statement = '$stmt1';
--echo
--vertical_results
eval
SELECT $diff_column_list
$part
AND t1.statement = '$stmt1' AND t2.statement = '$stmt2';
--echo
--horizontal_results
eval
SELECT
LPAD(COUNT_READ, 8, ' ') AS CNT_READ,
LPAD(SUM_NUMBER_OF_BYTES_READ, 10,' ') AS BYTES_READ,
LPAD(COUNT_WRITE,9, ' ') AS CNT_WRITE,
LPAD(SUM_NUMBER_OF_BYTES_WRITE, 11,' ') AS BYTES_WRITE,
LPAD(COUNT_MISC, 8, ' ') AS CNT_MISC, statement
FROM mysqltest.socket_summary_by_instance_detail
WHERE OBJECT_INSTANCE_BEGIN <> @default_object_instance_begin
AND EVENT_NAME LIKE ('%client_connection')
AND run = 1
AND statement IN('$stmt2','$stmt1');
let $print_details= 1;
}
# Initialize all variables which depend on the statements to be checked.
# This prevents that we run with wrong data.
let $stmt1= stmt1_not_set;
let $stmt2= stmt2_not_set;
let $my_rules= my_rules_not_set;
let $msg= msg_not_set;
inc $check_num;
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