diff --git a/docs/admin/performance/selects.rst b/docs/admin/performance/selects.rst
index 94228069..7d26ae2d 100644
--- a/docs/admin/performance/selects.rst
+++ b/docs/admin/performance/selects.rst
@@ -115,7 +115,8 @@ Rewrite JOINs as CTEs
 
 The article about `using common table expressions to speed up queries`_ shares
 a pattern you can use to replace JOINs with CTEs in your SQL queries, in order
-to achieve consistent and faster execution times.
+to achieve consistent and faster execution times. Please note that what CTEs to
+use depends on the profile of your data.
 
 **Example**