fix(abstract/querygenerator): correctly name indexes that live in custom schemas (#8151)

lib/dialects/abstract/query-generator.js

@@ -425,6 +425,11 @@ const QueryGenerator = {
   },
 
   nameIndexes(indexes, rawTablename) {
+    if (typeof rawTablename === 'object') {
+      // don't include schema in the index name
+      rawTablename = rawTablename.tableName;
+    }
+
     return _.map(indexes, index => {
       if (!index.hasOwnProperty('name')) {
         const onlyAttributeNames = index.fields.map(field => typeof field === 'string' ? field : field.name || field.attribute);

test/integration/query-interface.test.js

@@ -138,6 +138,8 @@ describe(Support.getTestDialectTeaser('QueryInterface'), () => {
             tableName: 'table'
           }).then(indexes => {
             expect(indexes.length).to.eq(1);
+            const index = indexes[0];
+            expect(index.name).to.eq('table_name_is_admin');
           });
         });
       });