Re: pg_index.indislossy

> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Should I remove this column?
> 
> NO.  The fact that we don't currently have any lossy index types doesn't
> mean that we won't ever have them again.  I've been wondering, for
> example, whether the frequently heard requests for case-insensitive
> indexes might not be answerable by implementing 'em as lossy indexes.

I see it now.  It is just looking for a flag in the index creation:
    if (!strcasecmp(param->defname, "islossy"))

That is the extent of the lossy code.  There is optimizer code checking
for it.  Seems an ifdef NOT_USED around those would document what needs
to be done, and document it doesn't do anything now, or I can just leave
it alone.

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