psql: Disable %P (pipeline status) for non-active connection

michaelpq · michaelpq · commit 4b77282f2501 · 2026-01-29T16:20:45.000+09:00
In the psql prompt, %P prompt shows the current pipeline status. Unlike most of the other options, its status was showing up in the output generated even if psql was not connected to a database. This was confusing, because without a connection a pipeline status makes no sense. Like the other options, %P is updated so as its data is now hidden without an active connection. Author: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/86EF76B5-6E62-404D-B9EC-66F4714D7D5F@gmail.com Backpatch-through: 18
diff --git a/src/bin/psql/prompt.c b/src/bin/psql/prompt.c
@@ -199,6 +199,7 @@ get_prompt(promptStatus_t status, ConditionalStack cstack)
 					break;
 					/* pipeline status */
 				case 'P':
+					if (pset.db)
 					{
 						PGpipelineStatus status = PQpipelineStatus(pset.db);
 
@@ -208,9 +209,8 @@ get_prompt(promptStatus_t status, ConditionalStack cstack)
 							strlcpy(buf, "abort", sizeof(buf));
 						else
 							strlcpy(buf, "off", sizeof(buf));
-						break;
 					}
-
+					break;
 				case '0':
 				case '1':
 				case '2':
