On Tue, Jan 26, 2010 at 2:12 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Robert Haas <robertmh...@gmail.com> writes: >> While reviewing Pavel's patch for variable quoting in psql, I came >> upon the following comment in psqlscan.l: > >> /* >> * The variable value is just emitted without any >> * further examination. This is consistent with the >> * pre-8.0 code behavior, if not with the way that >> * variables are handled outside backslash commands. >> */ > >> I cannot figure out for the life of me what this is referring to. > > At the other place where :foo is expanded, the value is pushed for > re-scanning; thus for example ":bar" within the variable value > might be further expanded as a reference to some other variable. > Inside backslash commands we don't do that but just take the value > literally.
Ah, makes sense. Thanks. ...Robert -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
