Re: [HACKERS] Access inside pg_node_tree from query?

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От Michael Paquier
Тема Re: [HACKERS] Access inside pg_node_tree from query?
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Msg-id CAB7nPqTOYbfGE1EiJ9ugg4U0545Jf7ULi1f1aMRg2BedtAEKcw@mail.gmail.com
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Ответ на [HACKERS] Access inside pg_node_tree from query?  (Ryan Murphy <ryanfmurphy@gmail.com>)
Ответы Re: [HACKERS] Access inside pg_node_tree from query?  (Ryan Murphy <ryanfmurphy@gmail.com>)
Список pgsql-hackers
On Sat, Feb 11, 2017 at 7:19 PM, Ryan Murphy <ryanfmurphy@gmail.com> wrote:
> Quick question, just curious - is there a way to access the members of a
> `pg_node_tree` value within a Postgres query?  By pg_node_tree I mean for
> example, the `ev_qual` field in the `pg_rewrite` table.  By "access the
> members" I mean in the same way that you can access the members of a json or
> jsonp value (using -> or ->>).  Is there anything analogous for
> pg_node_tree?

There are no in-core operators or functions to manipulate pg_node_tree.
-- 
Michael



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