MTR testcases are created automatically when using RQG w/ transformers. This fails when the table names have double (uppercase?) names. The table definitions and data inserts are simply missing.
For instance, in an MTR testcase which has this query:
SELECT MAX
( alias2.col_int )
AS field1 , alias1.pk AS field2
FROM LL AS alias1 JOIN PP AS alias2 ON alias1.col_varchar_10_latin1_key = alias2.col_varchar_10_latin1_key
GROUP BY field2
ORDER BY field1 ;
It does not include the table, nor the data, for LL or PP.
I another example, it was using a one letter table name and dual letter table name ('MM'). The single letter table name defintion (and data) was included (and renamed to "t1"), but the MM table defintion was not.
So, it looks like whatever code is supposed to include table defintions and data, is missing to include table names/data for tables with a table name lenght of 2 (or possibly >=2).
This is due to the regexp on line 58 in lib/GenTest/