Re: index scan with index cond on first column doesn't recognize sort order of second column - Mailing list pgsql-general

From Tom Lane
Subject Re: index scan with index cond on first column doesn't recognize sort order of second column
Date
Msg-id 4088.1045197162@sss.pgh.pa.us
Whole thread Raw
In response to Re: index scan with index cond on first column doesn't recognize sort order of second column  (Greg Stark <gsstark@mit.edu>)
List pgsql-general
Greg Stark <gsstark@mit.edu> writes:
> [ other stuff I'll respond to later ]

> Basic postgres mm question, is there a cdr function,

lfirst() == car().  lnext() == cdr().  Practically all the basic planner
datastructures were lifted from an original implementation in Lisp, and
other than these gratuitous(?) renamings, the semantics are still the
same.

> It all gets cleaned up with a ripcord deallocator?

Right.  Garbage collection r us; don't worry about leaking a cons cell
here or there.

            regards, tom lane

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