backend/commands/analyze.c

1638 							 int num_mcv,
1842 	int			num_mcv = stats->attr->attstattarget;
1848 	track_max = 2 * num_mcv;
2073 			track_cnt <= num_mcv)
2076 			num_mcv = track_cnt;
2083 			if (num_mcv > track_cnt)
2084 				num_mcv = track_cnt;
2086 			if (num_mcv > 0)
2088 				mcv_counts = (int *) palloc(num_mcv * sizeof(int));
2089 				for (i = 0; i < num_mcv; i++)
2092 				num_mcv = analyze_mcv_list(mcv_counts, num_mcv,
2100 		if (num_mcv > 0)
2108 			mcv_values = (Datum *) palloc(num_mcv * sizeof(Datum));
2109 			mcv_freqs = (float4 *) palloc(num_mcv * sizeof(float4));
2110 			for (i = 0; i < num_mcv; i++)
2123 			stats->numnumbers[0] = num_mcv;
2125 			stats->numvalues[0] = num_mcv;
2183 	int			num_mcv = stats->attr->attstattarget;
2189 	track = (ScalarMCVItem *) palloc(num_mcv * sizeof(ScalarMCVItem));
2312 					if (track_cnt < num_mcv ||
2323 						if (track_cnt < num_mcv)
2438 			track_cnt <= num_mcv)
2441 			num_mcv = track_cnt;
2448 			if (num_mcv > track_cnt)
2449 				num_mcv = track_cnt;
2451 			if (num_mcv > 0)
2453 				mcv_counts = (int *) palloc(num_mcv * sizeof(int));
2454 				for (i = 0; i < num_mcv; i++)
2457 				num_mcv = analyze_mcv_list(mcv_counts, num_mcv,
2465 		if (num_mcv > 0)
2473 			mcv_values = (Datum *) palloc(num_mcv * sizeof(Datum));
2474 			mcv_freqs = (float4 *) palloc(num_mcv * sizeof(float4));
2475 			for (i = 0; i < num_mcv; i++)
2488 			stats->numnumbers[slot_idx] = num_mcv;
2490 			stats->numvalues[slot_idx] = num_mcv;
2504 		num_hist = ndistinct - num_mcv;
2518 			qsort((void *) track, num_mcv,
2528 			if (num_mcv > 0)
2540 					if (j < num_mcv)
2741 				 int num_mcv,
2756 		return num_mcv;
2783 	for (i = 0; i < num_mcv - 1; i++)
2786 	while (num_mcv > 0)
2805 		otherdistinct = ndistinct_table - (num_mcv - 1);
2827 		K = N * mcv_counts[num_mcv - 1] / n;
2831 		if (mcv_counts[num_mcv - 1] > selec * samplerows + 2 * stddev + 0.5)
2843 			num_mcv--;
2844 			if (num_mcv == 0)
2846 			sumcount -= mcv_counts[num_mcv - 1];
2849 	return num_mcv;