From 8d660c0c4f306121e1a4217e79ebdbdddc611e3e Mon Sep 17 00:00:00 2001
From: Sean Ely <105326513+sean-tdengine@users.noreply.github.com>
Date: Mon, 22 Aug 2022 14:39:37 -0700
Subject: [PATCH] Update 01-docker.md

---
 docs/en/05-get-started/01-docker.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/docs/en/05-get-started/01-docker.md b/docs/en/05-get-started/01-docker.md
index 86680bd00f..32eee6b942 100644
--- a/docs/en/05-get-started/01-docker.md
+++ b/docs/en/05-get-started/01-docker.md
@@ -87,11 +87,12 @@ Query the average, maximum, and minimum values of all rows whose `groupId` tag i
 select avg(current), max(voltage), min(phase) from test.meters where groupId=10;
 ```
 
-Query the average, maximum, and minimum values for table `d10` in 10 second intervals:
+Query the average, maximum, and minimum values for table `d10` in 1 second intervals:
 
 ```sql
-select avg(current), max(voltage), min(phase) from test.d10 interval(10s);
+select first(ts), avg(current), max(voltage), min(phase) from test.d10 interval(1s);
 ```
+In the query above you are selecting the first timestamp (ts) in the interval, another way of selecting this would be _wstart which will give the start of the time window. For more information about windowed queries, see [Time-Series Extensions](../../taos-sql/distinguished/).
 
 ## Additional Information