chore: update postgres on the edge.

examples/edge-functions/supabase/.env.local.example

@@ -11,7 +11,8 @@ IPINFO_TOKEN="your https://ipinfo.io token"
 OPENAI_API_KEY="<YOUR API KEY HERE>"
 
 # postgres-on-the-edge 
-DATABASE_URL=
+DB_HOSTNAME=
+DB_PASSWORD=
 
 # puppeteer 
 PUPPETEER_BROWSERLESS_IO_TOKEN=

examples/edge-functions/supabase/functions/import_map.json

@@ -11,7 +11,7 @@
     "stripe": "https://esm.sh/stripe@11.1.0?target=deno",
     "sift": "https://deno.land/x/sift@0.6.0/mod.ts",
     "@supabase/supabase-js": "https://esm.sh/@supabase/supabase-js@2.7.1",
-    "postgres": "https://deno.land/x/postgres@v0.14.2/mod.ts",
+    "postgres": "https://deno.land/x/postgres@v0.17.0/mod.ts",
     "puppeteer": "https://deno.land/x/puppeteer@16.2.0/mod.ts",
     "React": "https://esm.sh/react@18.2.0?deno-std=0.177.0",
     "upstash_redis": "https://deno.land/x/upstash_redis@v1.19.3/mod.ts",

examples/edge-functions/supabase/functions/postgres-on-the-edge/index.ts

@@ -1,11 +1,18 @@
-import * as postgres from 'postgres'
+import { Pool } from 'postgres'
 import { serve } from 'std/server'
 
-// Get the connection string from the environment variable "DATABASE_URL"
-const databaseUrl = Deno.env.get('DATABASE_URL')!
-
-// Create a database pool with three connections that are lazily established
-const pool = new postgres.Pool(databaseUrl, 3, true)
+// Create a database pool with one connection.
+const pool = new Pool(
+  {
+    tls: { enabled: false },
+    database: 'postgres',
+    hostname: Deno.env.get('DB_HOSTNAME'),
+    user: 'postgres',
+    port: 5432,
+    password: Deno.env.get('DB_PASSWORD'),
+  },
+  1
+)
 
 serve(async (_req) => {
   try {
@@ -16,7 +23,6 @@ serve(async (_req) => {
       // Run a query
       const result = await connection.queryObject`SELECT * FROM animals`
       const animals = result.rows // [{ id: 1, name: "Lion" }, ...]
-      console.log(animals)
 
       // Encode the result as pretty printed JSON
       const body = JSON.stringify(