Re: patch: tsearch - some memory diet

Hello

2010/10/4 Robert Haas <robertmhaas(at)gmail(dot)com>:
> On Oct 3, 2010, at 7:02 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> It's not at all apparent that the code is even
>> safe as-is, because it's depending on the unstated assumption that that
>> static variable will get reset once per dictionary.  The documentation
>> is horrible: it doesn't really explain what the patch is doing, and what
>> it does say is wrong.
>
> Yep. We certainly would need to convince ourselves that this is correct before applying it, and that is all kinds of non-obvious.
>

what is good documentation?

This patch doesn't do more, than it removes palloc overhead on just
one structure of TSearch2 ispell dictionary. It isn't related to some
static variable - the most important is fact so this memory is
unallocated by dropping of memory context.

Regards

Pavel Stehule

> ...Robert