PostgreSQL: add support for ABORT TRANSACTION

src/parser/mod.rs

@@ -674,7 +674,7 @@ impl<'a> Parser<'a> {
                     self.prev_token();
                     self.parse_throw().map(Into::into)
                 }
-                Keyword::ROLLBACK => self.parse_rollback(),
+                Keyword::ROLLBACK | Keyword::ABORT => self.parse_rollback(),
                 Keyword::ASSERT => self.parse_assert(),
                 // `PREPARE`, `EXECUTE` and `DEALLOCATE` are Postgres-specific
                 // syntaxes. They are used for Postgres prepared statement.

tests/sqlparser_common.rs

@@ -9475,6 +9475,22 @@ fn parse_rollback() {
     );
 }
 
+#[test]
+fn parse_abort() {
+    one_statement_parses_to("ABORT", "ROLLBACK");
+    one_statement_parses_to("ABORT TRANSACTION", "ROLLBACK");
+    one_statement_parses_to("ABORT WORK", "ROLLBACK");
+    one_statement_parses_to("ABORT AND CHAIN", "ROLLBACK AND CHAIN");
+    one_statement_parses_to("ABORT AND NO CHAIN", "ROLLBACK");
+    one_statement_parses_to("ABORT TRANSACTION AND CHAIN", "ROLLBACK AND CHAIN");
+    one_statement_parses_to("ABORT WORK AND NO CHAIN", "ROLLBACK");
+    one_statement_parses_to("ABORT TO test1", "ROLLBACK TO SAVEPOINT test1");
+    one_statement_parses_to(
+        "ABORT AND CHAIN TO test1",
+        "ROLLBACK AND CHAIN TO SAVEPOINT test1",
+    );
+}
+
 #[test]
 #[should_panic(expected = "Parse results with GenericDialect are different from PostgreSqlDialect")]
 fn ensure_multiple_dialects_are_tested() {