What is the `TABLE example` syntax called? In PostgreSQL, I've been using syntax like
TABLE example1
UNION ALL
TABLE example2

which I understand to be equivalent to
SELECT * FROM example1
UNION ALL
SELECT * FROM example2

But a colleague asked me questions about this, and I can't find any PostgreSQL docs on this syntax. (&quot;TABLE&quot; isn't a helpful search phrase.) Where can I find documentation about it?
Is it ANSI SQL standard?

EDIT: It currently apparently even confuses StackExchanges's syntax highlighting.
It's documented with the SELECT statement and it's called "TABLE Command" there.

In the SQL standard it's called an "explicit table":


  The &lt;explicit table&gt;
  
  &nbsp;&nbsp; TABLE &lt;table or query name&gt;
  
  is equivalent to the 
  
  &nbsp;&nbsp; ( SELECT * FROM &lt;table or query name&gt; )




This seems to be part of the standard at least since SQL 1992