On Fri, Jun 9, 2017 at 3:22 PM, Heikki Linnakangas <hlinn...@iki.fi> wrote: > Hmm, there is one problem with our current use of comma as a separator: you > cannot use a Unix-domain socket directory that has a comma in the name, > because it's interpreted as multiple hostnames. E.g. this doesn't work: > > psql "host=/tmp/dir,with,commas" > > For hostnames, ports, and network addresses (hostaddr), a comma is not a > problem, as it's not a valid character in any of those. > > I don't know if that was considered when this patch was developed. I > couldn't find a mention of this in the archives. But in any case, that's > quite orthogonal to the rest of this thread.
I think this was found earlier [1]. But It appeared difficult to fix without breaking other API's behavior [2] [1] UDS with comma in name <https://www.postgresql.org/message-id/CAD__OujtKhMV9kQhQ2sgWV9EyzSv_Gwd7Kd%3DP1Lq%2B0z8xhW1RQ%40mail.gmail.com> [2] Fix for comma in UDS path <https://www.postgresql.org/message-id/CAD__Ouj-13zkmkm6CX7dW3UE%2BOaAHvaOB9Yx-bYj4yOHmsJ_FQ%40mail.gmail.com>
