Use the following sql script to create PL/Lua
ex) psql -f %%PREFIX%%/share/postgresql/contrib/pllua.sql <database>
ex) psql -c "CREATE EXTENSION pllua" <database>
lib/postgresql/pllua.so
share/postgresql/contrib/pllua--1.0.sql
share/postgresql/extension/pllua--1.0.sql
share/postgresql/extension/pllua.control