Thomas Munro 7c09d2797e Add PSQL_WATCH_PAGER for psql's \watch command. ... Allow a pager to be used by the \watch command. This works but isn't very useful with traditional pagers like "less", so use a different environment variable. The popular open source tool "pspg" (also by Pavel) knows how to display the output if you set PSQL_WATCH_PAGER="pspg --stream". To make \watch react quickly when the user quits the pager or presses ^C, and also to increase the accuracy of its timing and decrease the rate of useless context switches, change the main loop of the \watch command to use sigwait() rather than a sleeping/polling loop, on Unix. Supported on Unix only for now (like pspg). Author: Pavel Stehule <pavel.stehule@gmail.com> Author: Thomas Munro <thomas.munro@gmail.com> Discussion: https://postgr.es/m/CAFj8pRBfzUUPz-3gN5oAzto9SDuRSq-TQPfXU_P6h0L7hO%2BEhg%40mail.gmail.com		2021-07-13 11:43:21 +12:00
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src	Add PSQL_WATCH_PAGER for psql's \watch command.	2021-07-13 11:43:21 +12:00
KNOWN_BUGS	Remove extra newlines at end and beginning of files, add missing newlines	2010-08-19 05:57:36 +00:00
Makefile	Remove maintainer-check target, fold into normal build	2013-10-10 20:11:56 -04:00
MISSING_FEATURES	Remove extra newlines at end and beginning of files, add missing newlines	2010-08-19 05:57:36 +00:00
TODO	Change documentation references to PG website to use https: not http:	2017-05-20 21:50:47 -04:00