Function advance_counts

src/backend/executor/nodeSetOp.c:88–95

* Advance the appropriate counter for one input tuple. */

 * Advance the appropriate counter for one input tuple.
 */
static inline void
advance_counts(SetOpStatePerGroup pergroup, int flag)
{
	if (flag)
		pergroup->numRight++;
	else
		pergroup->numLeft++;
}

/*
 * Fetch the "flag" column from an input tuple.