Re: Parallel leader process info in EXPLAIN - Mailing list pgsql-hackers

From Rafia Sabih
Subject Re: Parallel leader process info in EXPLAIN
Date
Msg-id CA+FpmFdQHb5ma27r4PL9tOXpwHEo4+3CXZMDJgffwRTdTh_xyw@mail.gmail.com
Whole thread Raw
In response to Re: Parallel leader process info in EXPLAIN  (Thomas Munro <thomas.munro@gmail.com>)
Responses Re: Parallel leader process info in EXPLAIN
List pgsql-hackers
On Mon, 4 Nov 2019 at 00:30, Thomas Munro <thomas.munro@gmail.com> wrote:
On Mon, Nov 4, 2019 at 12:11 PM Thomas Munro <thomas.munro@gmail.com> wrote:
> I guess I thought of that as a debugging feature and took it out
> because it was too verbose, but maybe it just needs to be controlled
> by the VERBOSE switch.  Do you think we should put that back?

By which I mean: would you like to send a patch?  :-)

Here is a new version of the "Leader:" patch, because cfbot told me
that gcc didn't like it as much as clang.

I was reviewing this patch and here are a few comments,

+static void
+ExplainNodePerProcess(ExplainState *es, bool *opened_group,
+  int worker_number, Instrumentation *instrument)
+{

A small description about this routine would be helpful and will give the file a consistent look.

Also, I noticed that the worker details are displayed for sort node even without verbose, but for scans it is only with verbose. Am I missing something or there is something behind? However, I am not sure if this is the introduced by this patch-set.

--
Regards,
Rafia Sabih

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