Update docs on numeric storage requirements.

Since 9.1, the minimum overhead is three bytes, not five.

Fujii Masao

diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml
index 58e46b5870170b9d7082b33f42211a8b2ad41701..91dc35dc9d235dbb09c35945f20aba4d90748f72 100644 (file)
--- a/doc/src/sgml/datatype.sgml
+++ b/doc/src/sgml/datatype.sgml
@@ -568,7 +568,7 @@ NUMERIC
      type is more akin to varchar(n)
      than to char(n).)  The actual storage
      requirement is two bytes for each group of four decimal digits,
-     plus five to eight bytes overhead.
+     plus three to eight bytes overhead.