Add support for refetchInterval

Author: benjie

gatsby-node.js

@@ -6,7 +6,7 @@ const PostGraphileLink = require("./PostGraphileLink");
 
 exports.sourceNodes = async (
   utils,
-  { typeName = "PostGraphile", fieldName = "postgres", ...options }
+  { typeName = "PostGraphile", fieldName = "postgres", refetchInterval, ...options }
 ) => {
   const { connectionString, schema: postgresSchema, ...rest } = options;
 
@@ -18,6 +18,7 @@ exports.sourceNodes = async (
   await gatsbySourceGraphQLNode.sourceNodes(utils, {
     typeName,
     fieldName,
+    refetchInterval,
     createLink: () => new PostGraphileLink({ pool, schema: graphqlSchema }),
     createSchema: () => graphqlSchema,
   });