From d4adc894a64f7b25f002789d7eb434fc14c6107f Mon Sep 17 00:00:00 2001
From: Kazu Yamamoto <kazu@iij.ad.jp>
Date: Thu, 9 Jul 2015 16:12:15 +0900
Subject: [PATCH] describing four joins.

---
 examples.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/examples.md b/examples.md
index ebb55e46..453ad872 100644
--- a/examples.md
+++ b/examples.md
@@ -496,6 +496,10 @@ FROM MAIN.account T0
 WHERE (NOT (T0.product_cd IN ('CHK', 'SAV', 'CD', 'MM')))
 {% endhighlight %}
 
+#### Joins
+
+The combinations of `query` and `queryMaybe` express inner joins, left outer joins, right outer joins, and full outer joins.
+
 #### Inner join
 
 SQL: