Add tab-complete for ALTER DOMAIN ADD [CONSTRAINT]

Álvaro Herrera · Álvaro Herrera · commit dbf42b84ac7b · 2025-05-11T10:16:45.000-04:00
We can add tab-completion with "CHECK (" and "NOT NULL" after ALTER DOMAIN ADD [CONSTRAINT]. ALTER DOMAIN dom ADD -> CHECK ( ALTER DOMAIN dom ADD -> NOT NULL ALTER DOMAIN dom ADD -> CONSTRAINT ALTER DOMAIN dom ADD CONSTRAINT nm -> CHECK ( ALTER DOMAIN dom ADD CONSTRAINT nm -> NOT NULL Author: jian he <jian.universality@gmail.com> Author: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org> Discussion: https://postgr.es/m/CACJufxG_f6LzAT_McC-kKmQWpuWnOYKyNBw8Kv3xzTjPqmeHcA@mail.gmail.com
diff --git a/src/bin/psql/tab-complete.in.c b/src/bin/psql/tab-complete.in.c
@@ -2539,6 +2539,12 @@ match_previous_words(int pattern_id,
 	else if (Matches("ALTER", "DOMAIN", MatchAny))
 		COMPLETE_WITH("ADD", "DROP", "OWNER TO", "RENAME", "SET",
 					  "VALIDATE CONSTRAINT");
+	/* ALTER DOMAIN <sth> ADD */
+	else if (Matches("ALTER", "DOMAIN", MatchAny, "ADD"))
+		COMPLETE_WITH("CONSTRAINT", "NOT NULL", "CHECK (");
+	/* ALTER DOMAIN <sth> ADD CONSTRAINT <sth> */
+	else if (Matches("ALTER", "DOMAIN", MatchAny, "ADD", "CONSTRAINT", MatchAny))
+		COMPLETE_WITH("NOT NULL", "CHECK (");
 	/* ALTER DOMAIN <sth> DROP */
 	else if (Matches("ALTER", "DOMAIN", MatchAny, "DROP"))
 		COMPLETE_WITH("CONSTRAINT", "DEFAULT", "NOT NULL");
