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/usr/lib/mysql-testsuite/r/empty_table.result is in mysql-testsuite-5.6 5.6.16-1~exp1.

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The actual contents of the file can be viewed below.

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drop table if exists t1;
create table t1 (nr int(5) not null auto_increment,b blob,str char(10), primary key (nr));
select count(*) from t1;
count(*)
0
select * from t1;
nr	b	str
select * from t1 limit 0;
nr	b	str
drop table t1;