From e3695181cf7d5f31dda520a01def544dc576d6c1 Mon Sep 17 00:00:00 2001
From: Vignesh C <vignesh21@gmail.com>
Date: Sun, 2 Jul 2023 19:35:46 +0530
Subject: [PATCH v3 1/2] Fix missing tab completion in "ALTER DEFAULT
 PRIVILEGES"

GRANT, REVOKE and FOR USER keyword was not displayed in tab completion of alter default prvileges like the below statement:
ALTER DEFAULT PRIVILEGES GRANT INSERT ON tables TO PUBLIC;
ALTER DEFAULT PRIVILEGES REVOKE INSERT ON tables FROM PUBLIC;
ALTER DEFAULT PRIVILEGES FOR USER vignesh revoke INSERT ON tables FROM vignesh;

USER was not displayed for "ALTER DEFAULT PRIVILEGES IN SCHEMA public FOR " like in below statement:
ALTER DEFAULT PRIVILEGES IN SCHEMA public FOR USER vignesh GRANT INSERT ON TABLES TO PUBLIC;

"FOR GRANT OPTION" was not display for "ALTER DEFAULT PRIVILEGES REVOKE " like in below statement:
alter default privileges revoke grant option for select ON tables FROM testdba;
---
 src/bin/psql/tab-complete.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index ada711d02f..d5b3794fd6 100644
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -2144,10 +2144,15 @@ psql_completion(const char *text, int start, int end)
 
 	/* ALTER DEFAULT PRIVILEGES */
 	else if (Matches("ALTER", "DEFAULT", "PRIVILEGES"))
-		COMPLETE_WITH("FOR ROLE", "IN SCHEMA");
+		COMPLETE_WITH("FOR", "GRANT", "IN SCHEMA", "REVOKE");
 	/* ALTER DEFAULT PRIVILEGES FOR */
 	else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "FOR"))
-		COMPLETE_WITH("ROLE");
+		COMPLETE_WITH("ROLE", "USER");
+	/* ALTER DEFAULT PRIVILEGES REVOKE */
+	else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "REVOKE"))
+		COMPLETE_WITH("SELECT", "INSERT", "UPDATE", "DELETE", "TRUNCATE",
+					  "REFERENCES", "TRIGGER", "CREATE", "EXECUTE", "USAGE",
+					  "ALL", "GRANT OPTION FOR");
 	/* ALTER DEFAULT PRIVILEGES IN */
 	else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "IN"))
 		COMPLETE_WITH("SCHEMA");
@@ -2158,11 +2163,11 @@ psql_completion(const char *text, int start, int end)
 	/* ALTER DEFAULT PRIVILEGES IN SCHEMA ... */
 	else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "IN", "SCHEMA",
 					 MatchAny))
-		COMPLETE_WITH("GRANT", "REVOKE", "FOR ROLE");
+		COMPLETE_WITH("GRANT", "REVOKE", "FOR");
 	/* ALTER DEFAULT PRIVILEGES IN SCHEMA ... FOR */
 	else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "IN", "SCHEMA",
 					 MatchAny, "FOR"))
-		COMPLETE_WITH("ROLE");
+		COMPLETE_WITH("ROLE", "USER");
 	/* ALTER DEFAULT PRIVILEGES FOR ROLE|USER ... IN SCHEMA ... */
 	/* ALTER DEFAULT PRIVILEGES IN SCHEMA ... FOR ROLE|USER ... */
 	else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "FOR", "ROLE|USER",
-- 
2.34.1

