Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> The patch never intended to increase the index tuple length. It was
> only to better document how IndexTupleData is used. Both Tom and I
> agreed that the use of bits/contants/macros in itup.h was not idea, and
> needed a little cleaning. That's all the patch does.
The original version of the patch commandeered an extra bit for tuple
length. If you back off INDEX_SIZE_MASK to 1FFF, and document bit
13 as unused/reserved, then it's just a cleanup.
regards, tom lane
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