From 7efd081c4ea58b52e582f80f7f7227551d6c8e2f Mon Sep 17 00:00:00 2001
From: Afrah Razzak <mypg.afrah@gmail.com>
Date: Tue, 12 May 2026 14:55:42 -0500
Subject: [PATCH] psql: Add missing IO option to EXPLAIN tab completion

Commit 681daed9316 added EXPLAIN (IO) as a boolean option, but did
not update psql's tab completion to include it. Add IO to both the
option keyword list and the boolean ON/OFF completion.
---
 src/bin/psql/tab-complete.in.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/bin/psql/tab-complete.in.c b/src/bin/psql/tab-complete.in.c
index 1335479d2aa..a6ba223a1f7 100644
--- a/src/bin/psql/tab-complete.in.c
+++ b/src/bin/psql/tab-complete.in.c
@@ -4537,8 +4537,8 @@ match_previous_words(int pattern_id,
 		if (ends_with(prev_wd, '(') || ends_with(prev_wd, ','))
 			COMPLETE_WITH("ANALYZE", "VERBOSE", "COSTS", "SETTINGS", "GENERIC_PLAN",
 						  "BUFFERS", "SERIALIZE", "WAL", "TIMING", "SUMMARY",
-						  "MEMORY", "FORMAT");
-		else if (TailMatches("ANALYZE|VERBOSE|COSTS|SETTINGS|GENERIC_PLAN|BUFFERS|WAL|TIMING|SUMMARY|MEMORY"))
+						  "MEMORY", "IO", "FORMAT");
+		else if (TailMatches("ANALYZE|VERBOSE|COSTS|SETTINGS|GENERIC_PLAN|BUFFERS|WAL|TIMING|SUMMARY|MEMORY|IO"))
 			COMPLETE_WITH("ON", "OFF");
 		else if (TailMatches("SERIALIZE"))
 			COMPLETE_WITH("TEXT", "NONE", "BINARY");
-- 
2.39.3 (Apple Git-146)

