postgres 14: EXTRACT returns a numeric, which is converted to a strin…

src/packages/database/pool/util.ts

@@ -1,5 +1,14 @@
+/*
+ *  This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
+ *  License: AGPLv3 s.t. "Commons Clause" – see LICENSE.md for details
+ */
+
+// Postgres 14 is different than 13 an earlier.
+// extract(epoch from timestamp) returns a "numeric", which is converted to a string by the pg driver.
+// we convert this explicitly to a floating point number to get the ms since epoch.
+// Note: JavaScript's new Date(...) has no hesitation converting from a float.
 export function timeInSeconds(field: string, asField?: string): string {
-  return ` EXTRACT(EPOCH FROM ${field})*1000 as ${asField ?? field} `;
+  return ` (EXTRACT(EPOCH FROM ${field})*1000)::FLOAT as ${asField ?? field} `;
 }
 
 // Given number of seconds **in the future**.

src/packages/database/postgres-blobs.coffee

@@ -804,20 +804,12 @@ exports.extend_PostgreSQL = (ext) -> class PostgreSQL extends ext
             string_id : required
             cb        : required   # cb(err, array)
         @_query
-            query : "SELECT extract(epoch from time)*1000 as epoch, * FROM patches"
+            query : "SELECT * FROM patches"
             where : {"string_id = $::CHAR(40)" : opts.string_id}
             cb    : all_results (err, patches) =>
                 if err
                     opts.cb(err)
                 else
-                    for p in patches
-                        # TODO why using epoch and then converting to Date, why not just taking time?
-                        # Besides that: @hsy noticed in development that p.epoch could be a string, resulting in an invalid date.
-                        if typeof p.epoch == 'string'
-                            p.time = new Date(parseInt(p.epoch))
-                        else
-                            p.time = new Date(p.epoch)
-                        delete p.epoch
                     opts.cb(undefined, patches)
 
     import_patches: (opts) =>

src/packages/next/pages/share/public_paths/page/[page].tsx

@@ -11,7 +11,7 @@ such as Google, and only exists for that purpose.
 
 import Link from "next/link";
 import SiteName from "components/share/site-name";
-import getPool from "@cocalc/database/pool";
+import getPool, { timeInSeconds } from "@cocalc/database/pool";
 import PublicPaths from "components/share/public-paths";
 import { Layout } from "components/share/layout";
 import withCustomize from "lib/with-customize";
@@ -85,7 +85,7 @@ export async function getServerSideProps(context) {
   const page = getPage(context.params);
   const pool = getPool("medium");
   const { rows } = await pool.query(
-    `SELECT id, path, description, EXTRACT(EPOCH FROM last_edited)*1000 AS last_edited
+    `SELECT id, path, description, ${timeInSeconds("last_edited")}
     FROM public_paths
     WHERE vhost IS NULL AND disabled IS NOT TRUE AND unlisted IS NOT TRUE AND
     ((authenticated IS TRUE AND $1 IS TRUE) OR (authenticated IS NOT TRUE))

src/packages/server/projects/control/stop-idle-projects.ts

@@ -21,8 +21,10 @@ async function stopIdleProjects(stopProject: (string) => Promise<void>) {
   logger.debug("query database for all running projects");
   const runningProjects = (
     await callback2(db()._query, {
-      query:
-        "SELECT project_id, EXTRACT(EPOCH FROM NOW() - last_edited) as idle_time, settings, run_quota FROM projects WHERE state ->> 'state' = 'running'",
+      // ::float necessary for Postgres 14, see @cocalc/database/pool/util.ts timeInSeconds for more info
+      query: `SELECT project_id, (EXTRACT(EPOCH FROM NOW() - last_edited))::FLOAT as idle_time, settings, run_quota
+         FROM projects
+         WHERE state ->> 'state' = 'running'`,
     })
   ).rows;
   logger.debug("got ", runningProjects);