From: Bruce Momjian <bruce@momjian.us>
Date: Wed, 31 Aug 2022 23:43:06 +0000 (-0400)
Subject: doc:  document the maximum char/varchar length value
X-Git-Tag: REL_11_18~57
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e0d0c87a4c717ff9e47d7b7e5a25071e46090eba;p=thirdparty%2Fpostgresql.git

doc:  document the maximum char/varchar length value

Reported-by: Japin Li

Discussion: https://postgr.es/m/MEYP282MB1669B13E98AE531617CB1386B6979@MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM

Backpatch-through: 10
---

diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml
index 60b0e67c6ee..bc48006505e 100644
--- a/doc/src/sgml/datatype.sgml
+++ b/doc/src/sgml/datatype.sgml
@@ -1098,6 +1098,8 @@ SELECT '52093.89'::money::numeric::float8;
     <type>char(<replaceable>n</replaceable>)</type> are aliases for <type>character
     varying(<replaceable>n</replaceable>)</type> and
     <type>character(<replaceable>n</replaceable>)</type>, respectively.
+    If specified, the length must be greater than zero and cannot exceed
+    10485760.
     <type>character</type> without length specifier is equivalent to
     <type>character(1)</type>. If <type>character varying</type> is used
     without length specifier, the type accepts strings of any size. The