Re: not null constraints, again

Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> writes:
> Here's another version where I do skip searching for children twice, and
> rewrote the comments.

v2 LGTM, with two small nits:

1. Grammar feels shaky here:

+ * normal case where we're asked to recurse, this routine ensures that the
+ * not-null constraints either exist already, or queues a requirement for them
+ * to be created by phase 2.

The "either" seems to apply to "ensures" versus "queues", but it's in
the wrong place for that. Maybe something like

+ * normal case where we're asked to recurse, this routine checks if the
+ * not-null constraints exist already, and if not queues a requirement for
+ * them to be created by phase 2.

2. Stupider compilers are likely to whine about the "children"
variable possibly being used uninitialized. Suggest initializing
it to NIL.

regards, tom lane