Ever wished you could call a subquery for each row in your table? 🤔 That’s exactly what LATERAL JOIN does — it’s like giving SQL the ability to run a mini-query per row. 🧑💻 A LATERAL JOIN lets the ...

Most people know about INNER, LEFT, and RIGHT JOINs—but LATERAL JOIN is a hidden gem that makes complex queries much simpler! 🔹 What is LATERAL JOIN? It allows you to reference columns from the left ...

SELECT * FROM integers CROSS JOIN LATERAL (SELECT [i + 1]) t(k) CROSS JOIN LATERAL (SELECT UNNEST(k)) t2(l) ORDER BY i; ...

SELECT i1.i, SUM(r2.k), COUNT(*) FROM integers i1, LATERAL (SELECT i1.i+i2.i FROM integers i2, LATERAL (SELECT i2.i+i3.i FROM integers i3) r3) r2(k) GROUP BY i1.i ORDER BY i1.i; ...