Re: FETCH FIRST clause PERCENT option

Surafel,

Ok.

Your latest patch [1] passes make installcheck-world, I didn't test the actual functionality this round.

   plan = (Plan *) make_limit(plan,
    subparse->limitOffset,
-   subparse->limitCount);
+   subparse->limitCount,
+   subparse->limitOption);
 

I assume the limit percentage number goes into subparse->limitCount?  If so, I don't see that documented.  Or does this truly only store the count?

The remainder of the code seems to make sense.  I attached a patch with a few minor changes in the comments.  I need to go back to my notes and see if I covered all the testing I had thought of, I should get to that later this week.

[1] https://www.postgresql.org/message-id/attachment/103028/percent-incremental-v6.patch