Re: [PATCH] Add pretty-printed XML output option

After your comment I'm studying the possibility to extend the existing xmlserialize function to add the indentation feature. If so, how do you think it should look like? An extra parameter? e.g.

SELECT xmlserialize(DOCUMENT '<foo><bar>42</bar></foo>'::XML AS text, true);

.. or more or like Oracle does it

SELECT XMLSERIALIZE(DOCUMENT xmltype('<foo><bar>42</bar></foo>') AS BLOB INDENT)
FROM dual;

<XML character string serialization> ::=  XMLSERIALIZE <left paren> [ <document or content> ]

      <XML value expression> AS <data type>      [ <XML serialize bom> ]      [ <XML serialize version> ]      [ <XML declaration option> ]

      [ <XML serialize indent> ]      <right paren>

<XML serialize indent> ::=  [ NO ] INDENT