Calcite test suite containing 232 semantically equivalent query pairs

[Baca Radim]

Hi community,

Article "Symbolic Approach to Proving Query Equivalence Under Bag 
Semantics" (https://arxiv.org/pdf/2004.00481) mentions that it uses a 
Calcite test suite containing 232 semantically equivalent query pairs. 
Where can I find it?

I ran the Calcite tests, but there are plenty of them. I would be 
grateful if someone could point me to a specific piece of code.

Thank you very much,

Radim