From: Bruce Momjian <bruce@momjian.us>
Date: Sat, 3 Sep 2022 01:57:41 +0000 (-0400)
Subject: doc:  clarify recursion internal behavior
X-Git-Tag: REL_15_BETA4~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=170704da68c5150776c0ee4ed51350acde47b4a5;p=thirdparty%2Fpostgresql.git

doc:  clarify recursion internal behavior

Reported-by: Drew DeVault

Discussion: https://postgr.es/m/20211018091720.31299-1-sir@cmpwn.com

Backpatch-through: 10
---

diff --git a/doc/src/sgml/queries.sgml b/doc/src/sgml/queries.sgml
index 1428d99d0f8..4c5a83c9cbf 100644
--- a/doc/src/sgml/queries.sgml
+++ b/doc/src/sgml/queries.sgml
@@ -2172,9 +2172,8 @@ SELECT sum(n) FROM t;
 
   <note>
    <para>
-    Strictly speaking, this process is iteration not recursion, but
-    <literal>RECURSIVE</literal> is the terminology chosen by the SQL standards
-    committee.
+    While <literal>RECURSIVE</literal> allows queries to be specified
+    recursively, internally all queries are evaluated iteratively.
    </para>
   </note>