pg_index.indislossy

Can someone tell me what we use indislossy for?  The only comment I
could find was:
/* * WITH clause reinstated to handle lossy indices. -- JMH, 7/22/96 */foreach(pl, parameterList){    DefElem    *param
=(DefElem *) lfirst(pl);
 
    if (!strcasecmp(param->defname, "islossy"))        lossy = true;    else        elog(NOTICE, "Unrecognized index
attribute\"%s\" ignored",             param->defname);}
 

and
   bool        indislossy;     /* do we fetch false tuples (lossy                                * compression)? */

Should I remove this column?


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