The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/18/sql-syntax-lexical.html
Description:
>> The asterisk (*) is used in some contexts to denote all the fields of a
table row or composite value.
As for Postgres specifically, you can add an example like `SELECT ctid, *
FROM t;` and a link to Section 5.6, “System Columns.”