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Currently mtr doc doesn't have xml-report option documented. It is related to:
xml-report=<file> Output jUnit xml file of the results.
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The feature is added with MDEV-22176 pushed to 10.1.45, 10.2.32, 10.3.23, 10.4.13, 10.5.3 with commit 5720db2b4349.
Example of the call:
$ ./mtr alias --xml-report=mtr.xml
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$ cat mysql-test/mtr.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<testsuites disabled="0" errors="" failures="0" name="" tests="1" time="0.040">
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<testsuite disabled="" errors="" failures="" hostname="anel" id="0" name="main" package="" skipped="" tests="1" time="0.040" timestamp="2021-02-01T10:03:01Z">
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<testcase assertions="" classname="main" name="alias" status="MTR_RES_PASSED" time="0.040" />
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</testsuite>
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</testsuites>
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tail-lines are added with commit f43726a15da3 in 10.3.4, 10.4.0, 10.5.0
tail-lines=N Number of lines of the result to include in a failure report.
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Example:
We can inspect from stdout or mysql-test/var/log/stdout.log
$ ./mysql-test/mtr alias # failure after <snip> there are 20 lines (default)
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The result from queries just before the failure was:
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< snip >
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(select t2.* from t2)
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99
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99
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select a, (select t2.* from t2) from t1;
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a (select t2.* from t2)
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1 99
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11 99
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select t1.*, (select t2.* from t2) from t1;
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a b c (select t2.* from t2)
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1 2 3 99
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11 22 33 99
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insert into t3 select t1.* from t1;
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insert into t3 select t2.*, 1, 2 from t2;
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insert into t3 select t2.*, d as 'x', d as 'z' from t2;
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insert into t3 select t2.*, t2.*, 3 from t2;
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create table t4 select t1.* from t1;
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drop table t4;
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create table t4 select t2.*, 1, 2 from t2;
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drop table t4;
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create table t4 select t2.*, d as 'x', d as 'z' from tt;
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$ ./mysql-test/mtr alias --tail-lines=3 # failure after <snip> there are 3 lines (as set)
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The result from queries just before the failure was:
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< snip >
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create table t4 select t2.*, 1, 2 from t2;
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drop table t4;
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create table t4 select t2.*, d as 'x', d as 'z' from tt;
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Or the same information we can get from mysql-test/var/log/mysqltest.log
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