fix: incorrect /ready response on slow schema load

test/io/test_big_schema.py

@@ -7,6 +7,26 @@ from util import *
 from postgrest import *
 
 
+def test_first_request_succeeds(defaultenv):
+    "the first request suceeds fast since the admin server readiness was checked before"
+
+    env = {
+        **defaultenv,
+        "PGRST_DB_SCHEMAS": "apflora",
+        "PGRST_DB_POOL": "2",
+        "PGRST_DB_ANON_ROLE": "postgrest_test_anonymous",
+        "PGRST_SERVER_TIMING_ENABLED": "true",
+    }
+
+    with run(env=env, wait_max_seconds=20) as postgrest:
+        response = postgrest.session.get("/tpopmassn?select=*,tpop(*)")
+        assert response.status_code == 200
+
+        server_timings = parse_server_timings_header(response.headers["Server-Timing"])
+        plan_dur = server_timings["plan"]
+        assert plan_dur < 2.0
+
+
 def test_requests_wait_for_schema_cache_to_be_loaded(defaultenv):
     "requests that use the schema cache (e.g. resource embedding) wait for schema cache to be loaded"