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Revert "Added version to reduce stale reads and writes and prepare for optimistic locking"

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This reverts commit ef1209eaf4.
This commit is contained in:
Andrew Kane
2023-08-21 02:47:27 -07:00
parent 1301706d30
commit 02f4e0ec8b
4 changed files with 6 additions and 16 deletions
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6
src/hnswutils.c
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@@ -160,7 +160,6 @@ HnswInitElement(ItemPointer heaptid, int m, double ml, int maxLevel)
element->heaptids = NIL;
HnswAddHeapTid(element, heaptid);
element->version = 1;
element->level = level;
element->deleted = 0;
@@ -289,7 +288,6 @@ void
HnswSetElementTuple(HnswElementTuple etup, HnswElement element)
{
etup->type = HNSW_ELEMENT_TUPLE_TYPE;
etup->version = element->version;
etup->level = element->level;
etup->deleted = 0;
for (int i = 0; i < HNSW_HEAPTIDS; i++)
@@ -311,7 +309,6 @@ HnswSetNeighborTuple(HnswNeighborTuple ntup, HnswElement e, int m)
int idx = 0;
ntup->type = HNSW_NEIGHBOR_TUPLE_TYPE;
ntup->version = e->version;
for (int lc = e->level; lc >= 0; lc--)
{
@@ -351,7 +348,7 @@ LoadNeighborsFromPage(HnswElement element, Relation index, Page page)
HnswInitNeighbors(element, m);
/* Ensure expected neighbors */
if (ntup->version != element->version || ntup->count != neighborCount)
if (ntup->count != neighborCount)
return;
for (int i = 0; i < neighborCount; i++)
@@ -404,7 +401,6 @@ HnswLoadNeighbors(HnswElement element, Relation index)
void
HnswLoadElementFromTuple(HnswElement element, HnswElementTuple etup, bool loadHeaptids, bool loadVec)
{
element->version = etup->version;
element->level = etup->level;
element->deleted = etup->deleted;
element->neighborPage = ItemPointerGetBlockNumber(&etup->neighbortid);