doc: Update serial explanation

The CREATE SEQUENCE command should include a data type specification,
since PostgreSQL 10.

Reported-by: [email protected]

diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml
index 690e415e2c27031bfc73fadadeadab8fe891ba98..90e46ba035fbbc432ccef93696fe036ed308706f 100644 (file)
--- a/doc/src/sgml/datatype.sgml
+++ b/doc/src/sgml/datatype.sgml
@@ -861,7 +861,7 @@ CREATE TABLE tablename (
      is equivalent to specifying:
 
 
-CREATE SEQUENCE tablename_colname_seq;
+CREATE SEQUENCE tablename_colname_seq AS integer;
 CREATE TABLE tablename (
     colname integer NOT NULL DEFAULT nextval('tablename_colname_seq')
 );