RE: parallel vacuum comments

On Wed, Dec 15, 2021 4:03 PM Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
> On Tue, Dec 14, 2021 at 12:03 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> > There is still pending
> > work related to moving parallel vacuum code to a separate file and a
> > few other pending comments that are still under discussion. We can
> > take care of those in subsequent patches. Do, let me know if you or
> > others think differently?
>
> I'm on the same page.
>
> I've attached an updated patch. The patch incorporated several changes from
> the last version:
>
> * Rename parallel_vacuum_begin() to parallel_vacuum_init()
> * Unify the terminology; use "index bulk-deletion" and "index cleanup"
> instead of "index vacuum" and "index cleanup".
> * Fix the comment of parallel_vacuum_init() pointed out by Andres
> * Fix a typo that is left in commit 22bd3cbe0c (pointed out by Hou)
>
> Please review it.

Thanks for updating the patch.
Here are a few comments:

1)
+ case PARALLEL_INDVAC_STATUS_NEED_CLEANUP:
+ errcontext("while cleanup index \"%s\" of relation \"%s.%s\"",

I noticed current code uses error msg "While cleaning up index xxx" which seems a little
different from the patch's maybe we can use the previous one ?

2)
static inline Size max_items_to_alloc_size(int max_items);

This old function declaration can be deleted.

3)
--- a/src/tools/pgindent/typedefs.list
+++ b/src/tools/pgindent/typedefs.list

I think we need to remove LVShared, LVSharedIndStats, LVDeadItems and
LVParallelState from typedefs.list and add PVShared and PVIndStats to the file.

Best regards,
Hou zj