Re: PostgreSQL-13.3 parser.y with positional references by named references - Mailing list pgsql-hackers

ilmari@ilmari.org (Dagfinn Ilmari =?utf-8?Q?Manns=C3=A5ker?=) writes:
> Peter Eisentraut <peter.eisentraut@enterprisedb.com> writes:
>> On 04.07.21 17:58, Tom Lane wrote:
>>> When is "some time now"?

>> release 2.5 (2011-05-14)

> Do we support building on RHEL6? It only ships bison 2.4, so that would
> mean people building on that would have to install it seprately.

A quick look through the buildfarm shows these animals that would be
unhappy:

    sysname    |      snapshot       |                            l              gaur          | 2021-07-03 22:56:25 |
configure:using bison (GNU Bison) 1.875 
 prairiedog    | 2021-07-07 06:38:15 | configure: using bison (GNU Bison) 1.875
 locust        | 2021-07-07 07:15:22 | configure: using bison (GNU Bison) 2.3
 longfin       | 2021-07-07 04:39:09 | configure: using bison (GNU Bison) 2.3
 sifaka        | 2021-07-07 04:33:58 | configure: using bison (GNU Bison) 2.3
 anole         | 2021-07-01 15:50:38 | configure: using bison (GNU Bison) 2.4.1
 gharial       | 2021-07-05 08:00:48 | configure: using bison (GNU Bison) 2.4.1
 walleye       | 2021-07-07 06:55:35 | configure: using bison (GNU Bison) 2.4.2
 jacana        | 2021-07-06 03:00:44 | Jul 05 23:00:49 configure: using bison (GNU Bison) 2.4.2

(hmm, almost half of those are mine :-().  The main thing I take away
from this is that Apple is still shipping 2.3, which means that requiring
2.5 would completely break the ability to build on macOS without using
anything from homebrew or macports.  That seems like moving the goalposts
pretty far for a minor developer-convenience feature.

            regards, tom lane