postgres_fdw: Extend postgres_fdw_get_connections to return remote backend PID.
This commit adds a new "remote_backend_pid" output column to the postgres_fdw_get_connections function. It returns the process ID of the remote backend, on the foreign server, handling the connection. This enhancement is useful for troubleshooting, monitoring, and reporting. For example, if a connection is unexpectedly closed by the foreign server, the remote backend's PID can help diagnose the cause. No extension version bump is needed, as commit c297a47c5f already handled it for v18~. Author: Sagar Dilip Shedge <sagar.shedg...@gmail.com> Reviewed-by: Fujii Masao <masao.fu...@gmail.com> Discussion: https://postgr.es/m/caphyiff25q5xuqwxetfkwhc0yva_6+tfg9kw4bcvcjpcwxy...@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/fe186bda78c4a0ccbb691489c744e6317f648434 Modified Files -------------- contrib/postgres_fdw/connection.c | 11 ++++-- contrib/postgres_fdw/expected/postgres_fdw.out | 46 ++++++++++++++++--------- contrib/postgres_fdw/postgres_fdw--1.1--1.2.sql | 2 +- contrib/postgres_fdw/sql/postgres_fdw.sql | 26 ++++++++++---- doc/src/sgml/postgres-fdw.sgml | 23 +++++++++---- 5 files changed, 76 insertions(+), 32 deletions(-)
