Rajesh Kumar Mallah <[EMAIL PROTECTED]> writes: > Below are the plans for two cases. I dont know how to read them accurately > can u please explain them.
Well, they're the same plan, as far as they go. I suppose that the runtime difference must come from choosing a different plan inside the most_recent_edition() function, which we cannot see in the explain output. As before, turning on logging of verbose query plans is the only way to look at what the function is doing. > Also can anyone point to some documentation > oriented towards understanding explain analyze output? http://www.postgresql.org/docs/view.php?version=7.3&idoc=0&file=performance-tips.html regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
