/* *DataforonekeyinaGINindex.
*/ typedefstruct GinTuple
{ int tuplen; /* length of the whole tuple */
OffsetNumber attrnum; /* attnum of index key */
uint16 keylen; /* bytes in data for key value */
int16 typlen; /* typlen for key */ bool typbyval; /* typbyval for key */ signedchar category; /* category: normal or NULL? */ int nitems; /* number of TIDs in the data */ char data[FLEXIBLE_ARRAY_MEMBER];
} GinTuple;