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
This commit is contained in:
Bruce Momjian 2022-08-31 19:43:06 -04:00
parent 9bdad1b515
commit 62c49fca13
1 changed files with 2 additions and 0 deletions

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@ -1217,6 +1217,8 @@ 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