Support creating indexes on table with schema

When creating an index on a table where the schema is specified, the
schema shouldn't be included in the index name.

lib/operations/indexes.js

@@ -1,7 +1,10 @@
 import _ from 'lodash';
 import { template } from '../utils';
 
-function generateIndexName(table_name, columns, options) {
+function generateIndexName(table, columns, options) {
+  const table_name = typeof table === 'object'
+    ? table.name
+    : table;
   return options.name
     ? options.name
     : template`${table_name}_${_.isArray(columns) ? columns.join('_') : columns}${options.unique ? '_unique' : ''}_index`;

test/indexes-test.js

@@ -0,0 +1,11 @@
+import { expect } from 'chai';
+import * as Indexes from '../lib/operations/indexes';
+
+describe('lib/operations/indexes', () => {
+  describe('.create', () => {
+    it('check schema not included in index name', () => {
+      const sql = Indexes.create({ schema: 'a', name: 'b' }, ['c', 'd']);
+      expect(sql).to.equal('CREATE  INDEX  "b_c_d_index" ON "a"."b" ("c", "d");');
+    });
+  });
+});