Parse ALTER COLUMN in ALTER MATERIALIZED VIEW as in ALTER VIEW

Author: LucaCappelletti94

src/parser/mod.rs

@@ -12174,11 +12174,6 @@ impl<'a> Parser<'a> {
                 old_column_name,
                 new_column_name: self.parse_identifier()?,
             }
-        } else if materialized {
-            return self.expected_ref(
-                "OWNER TO, RENAME, SET or RESET after ALTER MATERIALIZED VIEW",
-                self.peek_token_ref(),
-            );
         } else if self.parse_keyword(Keyword::ALTER) {
             let _ = self.parse_keyword(Keyword::COLUMN);
             let column_name = self.parse_identifier()?;

tests/sqlparser_postgres.rs

@@ -12242,27 +12242,28 @@ fn parse_alter_materialized_view() {
     ] {
         pg_and_generic().verified_stmt(sql);
     }
+    assert_eq!(
+        pg_and_generic().verified_stmt("ALTER MATERIALIZED VIEW m ALTER COLUMN c SET DEFAULT 1"),
+        Statement::AlterView(AlterView {
+            materialized: true,
+            name: ObjectName::from(vec![Ident::new("m")]),
+            if_exists: false,
+            operation: AlterViewOperation::AlterColumn {
+                column_name: Ident::new("c"),
+                op: AlterColumnOperation::SetDefault {
+                    value: Expr::value(number("1")),
+                },
+            },
+        })
+    );
+    pg_and_generic().verified_stmt("ALTER MATERIALIZED VIEW m ALTER COLUMN c DROP DEFAULT");
 
-    for (sql, expected) in [
-        (
-            "ALTER MATERIALIZED VIEW m AS SELECT 1",
-            "Expected: OWNER TO, RENAME, SET or RESET after ALTER MATERIALIZED VIEW, found: AS",
-        ),
-        (
-            "ALTER MATERIALIZED VIEW m ALTER COLUMN c SET DEFAULT 1",
-            "Expected: OWNER TO, RENAME, SET or RESET after ALTER MATERIALIZED VIEW, found: ALTER",
-        ),
-        (
-            "ALTER MATERIALIZED m OWNER TO alice",
-            "Expected: VIEW, found: m",
-        ),
-    ] {
-        assert_eq!(
-            pg_and_generic().parse_sql_statements(sql).unwrap_err(),
-            ParserError::ParserError(expected.to_string()),
-            "{sql}"
-        );
-    }
+    assert_eq!(
+        pg_and_generic()
+            .parse_sql_statements("ALTER MATERIALIZED m OWNER TO alice")
+            .unwrap_err(),
+        ParserError::ParserError("Expected: VIEW, found: m".to_string())
+    );
 }
 
 #[test]