Why is my PostgreSQL package not working? -


i in database course , reading through book doing exercises go. have installed postgresql on computer , created database book.

i ran following code see if packages have installed correctly book prompted me , received following error...

korys-macbook-pro:~ koryhershock$ psql book -c "select '1'::cube;" error:  type "cube" not exist line 1: select '1'::cube;

the books says see online docs if receive error message. have been looking , have had no luck far. wasn't move on in book because enjoy class far. suggestions?


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