I'm looking over the code in backends/access/gist, and I noticed this
in gist.c, in gistdoinsert():

	instup = (IndexTuple *) palloc(sizeof(IndexTuple));
	instup[0] = (IndexTuple) palloc(IndexTupleSize(itup));
	memcpy(instup[0], itup, IndexTupleSize(itup));

	ret = gistlayerinsert(r, GISTP_ROOT, &instup, &len, res, giststate);
	if (ret & SPLITED)
		gistnewroot(r, instup, len);

	for (i = 0; i < len; i++)
		pfree(instup[i]);
	pfree(instup);

I only understand maybe 5% of what's going on here, but won't it be a
problem if len > 1 after the call to gistlayerinsert()?  It looked like
it might be possible that len > 1 if gistSplit() happens.

-- 
Itai Zukerman  <http://www.math-hat.com/~zukerman/>

Sat, 01 Mar 2003 10:11:35 -0500
Itai Zukerman <zukerman@math-hat.com>
GiST:  Bug In gistdoinsert() ?