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Improved logic for pruning elements

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This commit is contained in:
Andrew Kane
2023-08-08 18:22:55 -07:00
parent c17d51588a
commit 600ca5a797
1 changed files with 8 additions and 8 deletions
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16
src/hnswutils.c
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@@ -859,8 +859,8 @@ UpdateConnections(HnswElement element, List *neighbors, int m, int lc, List **up
else
hc3->distance = GetCandidateDistance(hc3, q, procinfo, collation);
/* Prune deleted element */
if (hc3->element->deleted)
/* Prune element if being deleted */
if (list_length(hc3->element->heaptids) == 0)
{
pruned = &currentNeighbors->items[i];
break;
@@ -868,14 +868,14 @@ UpdateConnections(HnswElement element, List *neighbors, int m, int lc, List **up
}
}
/* Add and sort candidates */
for (int i = 0; i < currentNeighbors->length; i++)
c = lappend(c, &currentNeighbors->items[i]);
c = lappend(c, &hc2);
list_sort(c, CompareCandidateDistances);
if (pruned == NULL)
{
/* Add and sort candidates */
for (int i = 0; i < currentNeighbors->length; i++)
c = lappend(c, &currentNeighbors->items[i]);
c = lappend(c, &hc2);
list_sort(c, CompareCandidateDistances);
SelectNeighbors(c, m, lc, procinfo, collation, &pruned);
/* Should not happen */