On 2014-01-16 11:25:59 -0300, Alvaro Herrera wrote:
> Eyeballing this patch, three thoughts:
> 1. I wonder whether ilist.c/h should be moved to src/common so that
> frontend code could use it.
Sounds like a good idea. There's some debugging checks that elog, but
that should be fixable easily.
> 2. I wonder whether ilist.c should gain the ability to have
> singly-linked lists with a pointer to the tail node for appending to the
> end. This code would use it, and also the code doing postgresql.conf
> parsing which has head/tail pointers all over the place. I'm sure there
> are other uses.
I am not generaly adverse to it, but neither of those usecases seems to
warrant that. They just should use a doubly linked list, it's not like
the memory/runtime overhead is significant. And the implementation
overhead doesn't count either if they use ilist.h.
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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