Support sending Close messages from libpq

When Who What
2023-07-04 05:48:55 Michael Paquier (michael-kun) Closed in commitfest 2023-07 with status: Committed
2023-07-03 23:27:50 Michael Paquier (michael-kun) Added michael-kun as committer
2023-07-03 23:27:44 Michael Paquier (michael-kun) Added michael-kun as reviewer
2023-06-16 15:32:26 Jelte Fennema-Nio (jeltef) Changed authors to Jelte Fennema (jeltef)
2023-06-16 15:32:26 Jelte Fennema-Nio (jeltef) Changed targetversion to 17
2023-06-16 15:32:11 Jelte Fennema-Nio (jeltef) Attached mail thread CAAfz9KNMwe_8WW8m_qsp+SQ13bdmydNLS_eLDQwu243Yk4=oxQ@mail.gmail.com
2023-06-16 15:32:11 Jelte Fennema-Nio (jeltef) Created patch record