Michael Paquier b025f32e0b Add leader_pid to pg_stat_activity ... This new field tracks the PID of the group leader used with parallel query. For parallel workers and the leader, the value is set to the PID of the group leader. So, for the group leader, the value is the same as its own PID. Note that this reflects what PGPROC stores in shared memory, so as leader_pid is NULL if a backend has never been involved in parallel query. If the backend is using parallel query or has used it at least once, the value is set until the backend exits. Author: Julien Rouhaud Reviewed-by: Sergei Kornilov, Guillaume Lelarge, Michael Paquier, Tomas Vondra Discussion: https://postgr.es/m/CAOBaU_Yy5bt0vTPZ2_LUM6cUcGeqmYNoJ8-Rgto+c2+w3defYA@mail.gmail.com		2020-02-06 09:18:06 +09:00
..
src	Add leader_pid to pg_stat_activity	2020-02-06 09:18:06 +09:00
KNOWN_BUGS	Remove extra newlines at end and beginning of files, add missing newlines	2010-08-19 05:57:36 +00:00
MISSING_FEATURES	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
TODO	Change documentation references to PG website to use https: not http:	2017-05-20 21:50:47 -04:00