Re: Fix uninitialized copy_data var (src/backend/commands/subscriptioncmds.c)

Michael Paquier <michael@paquier.xyz>

From: Michael Paquier <michael@paquier.xyz>
To: Peter Smith <smithpb2250@gmail.com>
Cc: Ranier Vilela <ranier.vf@gmail.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2021-06-28T03:29:06Z
Lists: pgsql-hackers
On Mon, Jun 28, 2021 at 10:17:55AM +1000, Peter Smith wrote:
> IIUC for the case ALTER_SUBSCRIPTION_DROP_PUBLICATION it looks like
> the uninitialized copy_data local stack var would remain uninitialized
> (undefined) still at the time it is passed at
> AlterSubscription_refresh(sub, copy_data);

Yes, that's wrong.  AlterSubscription_refresh() would happily look at
this uninitialized value when performing a refresh with this command.
That's the only code path using parse_subscription_options() with this
pattern.  Applied on HEAD.
--
Michael

Commits

  1. Fix variable initialization with ALTER SUBSCRIPTION DROP PUBLICATION

  2. Put option listing back into alphabetical order