backend/commands/analyze.c

1794 				 int num_mcv,
1998 	int			num_mcv = stats->attr->attstattarget;
2004 	track_max = 2 * num_mcv;
2230 			track_cnt <= num_mcv)
2233 			num_mcv = track_cnt;
2240 			if (num_mcv > track_cnt)
2241 				num_mcv = track_cnt;
2243 			if (num_mcv > 0)
2245 				mcv_counts = (int *) palloc(num_mcv * sizeof(int));
2246 				for (i = 0; i < num_mcv; i++)
2249 				num_mcv = analyze_mcv_list(mcv_counts, num_mcv,
2257 		if (num_mcv > 0)
2265 			mcv_values = (Datum *) palloc(num_mcv * sizeof(Datum));
2266 			mcv_freqs = (float4 *) palloc(num_mcv * sizeof(float4));
2267 			for (i = 0; i < num_mcv; i++)
2279 			stats->numnumbers[0] = num_mcv;
2281 			stats->numvalues[0] = num_mcv;
2339 	int			num_mcv = stats->attr->attstattarget;
2345 	track = (ScalarMCVItem *) palloc(num_mcv * sizeof(ScalarMCVItem));
2469 					if (track_cnt < num_mcv ||
2480 						if (track_cnt < num_mcv)
2595 			track_cnt <= num_mcv)
2598 			num_mcv = track_cnt;
2605 			if (num_mcv > track_cnt)
2606 				num_mcv = track_cnt;
2608 			if (num_mcv > 0)
2610 				mcv_counts = (int *) palloc(num_mcv * sizeof(int));
2611 				for (i = 0; i < num_mcv; i++)
2614 				num_mcv = analyze_mcv_list(mcv_counts, num_mcv,
2622 		if (num_mcv > 0)
2630 			mcv_values = (Datum *) palloc(num_mcv * sizeof(Datum));
2631 			mcv_freqs = (float4 *) palloc(num_mcv * sizeof(float4));
2632 			for (i = 0; i < num_mcv; i++)
2644 			stats->numnumbers[slot_idx] = num_mcv;
2646 			stats->numvalues[slot_idx] = num_mcv;
2660 		num_hist = ndistinct - num_mcv;
2674 			qsort((void *) track, num_mcv,
2684 			if (num_mcv > 0)
2696 					if (j < num_mcv)
2895 				 int num_mcv,
2910 		return num_mcv;
2937 	for (i = 0; i < num_mcv - 1; i++)
2940 	while (num_mcv > 0)
2959 		otherdistinct = ndistinct_table - (num_mcv - 1);
2981 		K = N * mcv_counts[num_mcv - 1] / n;
2985 		if (mcv_counts[num_mcv - 1] > selec * samplerows + 2 * stddev + 0.5)
2997 			num_mcv--;
2998 			if (num_mcv == 0)
3000 			sumcount -= mcv_counts[num_mcv - 1];
3003 	return num_mcv;