4 ms·
NEVER CREATE CARTESIAN PRODUCTS For example: SELECT clicks.session_id, clicks.page_url, sessions.user_id FROM clicks, sessions; (This context is guaranteed t
by panarky 3y ago
NEVER CREATE CARTESIAN PRODUCTS
For example:
SELECT clicks.session_id, clicks.page_url, sessions.user_id
FROM clicks, sessions;
(This context is guaranteed to generate lots of cartesian products.)