From 9b76f712aa42756d52b398d59bc3f1bbfbc3de0e Mon Sep 17 00:00:00 2001
From: LucaCappelletti94 <cappelletti.luca94@gmail.com>
Date: Wed, 11 Nov 2026 22:54:45 +0100
Subject: [PATCH] PostgreSQL: Support `ROLE` members in `ALTER EXTENSION`

---
 fuzz/fuzz_seeds/postgres_alter_extension.sql | 1 +
 src/ast/ddl.rs                               | 3 +++
 src/parser/mod.rs                            | 2 ++
 tests/sqlparser_postgres.rs                  | 2 ++
 4 files changed, 8 insertions(+)

diff --git a/fuzz/fuzz_seeds/postgres_alter_extension.sql b/fuzz/fuzz_seeds/postgres_alter_extension.sql
index dcc5b31d7f..50c5de020d 100644
--- a/fuzz/fuzz_seeds/postgres_alter_extension.sql
+++ b/fuzz/fuzz_seeds/postgres_alter_extension.sql
@@ -22,3 +22,4 @@ ALTER EXTENSION citext DROP DATABASE db_name;
 ALTER EXTENSION citext ADD EXTENSION other_ext;
 ALTER EXTENSION citext DROP INDEX public.idx;
 ALTER EXTENSION citext ADD PUBLICATION pub;
+ALTER EXTENSION citext ADD ROLE role_name;
diff --git a/src/ast/ddl.rs b/src/ast/ddl.rs
index b9150c566d..f6b6333222 100644
--- a/src/ast/ddl.rs
+++ b/src/ast/ddl.rs
@@ -4959,6 +4959,8 @@ pub enum AlterExtensionMember {
     MaterializedView(ObjectName),
     /// `PUBLICATION object_name`
     Publication(Ident),
+    /// `ROLE object_name`
+    Role(Ident),
     /// `SCHEMA object_name`
     Schema(Ident),
     /// `SEQUENCE object_name`
@@ -5021,6 +5023,7 @@ impl fmt::Display for AlterExtensionMember {
             }
             AlterExtensionMember::MaterializedView(name) => write!(f, "MATERIALIZED VIEW {name}"),
             AlterExtensionMember::Publication(name) => write!(f, "PUBLICATION {name}"),
+            AlterExtensionMember::Role(name) => write!(f, "ROLE {name}"),
             AlterExtensionMember::Schema(name) => write!(f, "SCHEMA {name}"),
             AlterExtensionMember::Sequence(name) => write!(f, "SEQUENCE {name}"),
             AlterExtensionMember::Server(name) => write!(f, "SERVER {name}"),
diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index 8a7e5e824a..7bc1a857a2 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -12581,6 +12581,8 @@ impl<'a> Parser<'a> {
             ))
         } else if self.parse_keyword(Keyword::PUBLICATION) {
             Ok(AlterExtensionMember::Publication(self.parse_identifier()?))
+        } else if self.parse_keyword(Keyword::ROLE) {
+            Ok(AlterExtensionMember::Role(self.parse_identifier()?))
         } else if self.parse_keyword(Keyword::SCHEMA) {
             Ok(AlterExtensionMember::Schema(self.parse_identifier()?))
         } else if self.parse_keyword(Keyword::SEQUENCE) {
diff --git a/tests/sqlparser_postgres.rs b/tests/sqlparser_postgres.rs
index a3dd1a78b3..618e122bec 100644
--- a/tests/sqlparser_postgres.rs
+++ b/tests/sqlparser_postgres.rs
@@ -13543,6 +13543,7 @@ fn alter_extension_member_round_trip_forms(action: &str) {
         format!("ALTER EXTENSION ext_name {action} PROCEDURAL LANGUAGE plpgsql"),
         format!("ALTER EXTENSION ext_name {action} MATERIALIZED VIEW mv"),
         format!("ALTER EXTENSION ext_name {action} PUBLICATION pub"),
+        format!("ALTER EXTENSION ext_name {action} ROLE role_name"),
         format!("ALTER EXTENSION ext_name {action} SCHEMA schema_name"),
         format!("ALTER EXTENSION ext_name {action} SEQUENCE seq"),
         format!("ALTER EXTENSION ext_name {action} SERVER srv"),
@@ -13741,6 +13742,7 @@ fn parse_alter_extension_add_member() {
         "MATERIALIZED VIEW",
         "PROCEDURAL LANGUAGE",
         "PUBLICATION",
+        "ROLE",
         "SCHEMA",
         "SEQUENCE",
         "SERVER",