Does not free after get_rel_name, is that okay?

[Zaczero]

I noticed that get_rel_name allocations are not freed. I don't know much of Postgres internals, but is that acceptable?

https://doxygen.postgresql.org/lsyscache_8c.html#a02319738972c0de42f4cbc0939180e41

Result is after pstrdup copy.