Fix formatting of plain CREATE SEQUENCE

Fixes #48

Author: nene

src/syntax/sequence.ts

@@ -3,10 +3,12 @@ import { CstToDocMap } from "../CstToDocMap";
 import { group, indent, join, line } from "../print_utils";
 
 export const sequenceMap: CstToDocMap<AllSequenceNodes> = {
-  create_sequence_stmt: (print) =>
+  create_sequence_stmt: (print, node) =>
     group([
       print.spaced(["createKw", "kind", "sequenceKw", "ifNotExistsKw", "name"]),
-      indent([print.dynamicLine(), join(line, print("options"))]),
+      node.options.length > 0
+        ? indent([print.dynamicLine(), join(line, print("options"))])
+        : [],
     ]),
   alter_sequence_stmt: (print) =>
     group([

test/ddl/sequence.test.ts

@@ -3,6 +3,12 @@ import { testPostgresql } from "../test_utils";
 
 describe("sequence", () => {
   describe("create sequence", () => {
+    it(`formats minimal CREATE SEQUENCE`, async () => {
+      await testPostgresql(dedent`
+        CREATE SEQUENCE my_seq
+      `);
+    });
+
     it(`formats CREATE SEQUENCE on a single line`, async () => {
       await testPostgresql(dedent`
         CREATE SEQUENCE my_seq START WITH 10 NO CYCLE MAXVALUE 1000