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Tom Lane 51b2c08798 Tighten usage of PSQL_WATCH_PAGER. 
Don't use PSQL_WATCH_PAGER when stdin/stdout are not a terminal.
This corresponds to the restrictions on when other commands will
use [PSQL_]PAGER.  There isn't a lot of sense in trying to use a
pager in non-interactive cases, and doing so allows an environment
setting to break our tests.

Also, ignore PSQL_WATCH_PAGER if it is set but empty or all-blank,
for the same reasons we ignore such settings of [PSQL_]PAGER (see
commit 18f8f784c).

No documentation change is really needed, since there is nothing
suggesting that these constraints on [PSQL_]PAGER didn't already
apply to PSQL_WATCH_PAGER too.  But I rearranged the text
a little to make it read more naturally (IMHO anyway).

Per report from Pavel Stehule.  Back-patch to v15 where
PSQL_WATCH_PAGER was introduced.

Discussion: https://postgr.es/m/CAFj8pRDTwFzmEWdA-gdAcUh0ZnxUioSfTMre71WyB_wNJy-8gw@mail.gmail.com
 		2023-05-12 16:11:14 -04:00
..
backend Undo faulty attempt at not relying on RINFO_IS_PUSHED_DOWN. 2023-05-11 13:44:25 -04:00
bin Tighten usage of PSQL_WATCH_PAGER. 2023-05-12 16:11:14 -04:00
common Introduce PG_IO_ALIGN_SIZE and align all I/O buffers. 2023-04-08 16:34:50 +12:00
fe_utils Revert refactoring of restore command code to shell_restore.c 2023-02-06 08:28:42 +09:00
include initdb: Set collversion for standard collation UNICODE 2023-05-12 10:03:05 +02:00
interfaces Fix typos in comments 2023-05-02 12:23:08 +09:00
makefiles Use --strip-unneeded when stripping static libraries with GNU strip. 2023-04-20 18:12:32 -04:00
pl Move return statements out of PG_TRY blocks. 2023-05-04 16:23:05 -07:00
port Fix various typos 2023-04-18 13:23:23 +12:00
template Use unnamed POSIX semaphores on Cygwin. 2023-01-06 10:33:28 +13:00
test Undo faulty attempt at not relying on RINFO_IS_PUSHED_DOWN. 2023-05-11 13:44:25 -04:00
timezone Update time zone data files to tzdata release 2023c. 2023-04-18 14:46:39 -04:00
tools Doc: update pgindent/README some more. 2023-04-22 11:52:46 -04:00
tutorial Remove useless casts to (void *) in arguments of some system functions 2023-02-07 06:57:59 +01:00
.gitignore
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DEVELOPERS
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Makefile Integrate pg_bsd_indent into our build/test infrastructure. 2023-02-12 12:22:21 -05:00
Makefile.global.in Fix prove_installcheck when used with PGXS 2023-05-05 07:09:52 +02:00
Makefile.shlib autoconf: Rely on ar supporting index creation 2022-10-07 11:53:39 -07:00
meson.build Integrate pg_bsd_indent into our build/test infrastructure. 2023-02-12 12:22:21 -05:00
nls-global.mk Fix for make unportability 2022-07-13 09:15:01 +02:00