Changed addIndex from this.query to this.execute

Signed-off-by: David Knapp <[email protected]>

Author: dave-apex

lib/migration.js

@@ -1003,7 +1003,7 @@ function mixinMigration(PostgreSQL) {
     });
 
     // console.log(sql.join('\n\n'));
-    this.query(sql.join(';\n'), cb);
+    this.execute(sql.join(';\n'), [], options, cb);
   };
 
   function normalizeIndexKeyDefinition(keys) {