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Remove cost of extra pages when random_page_cost equals seq_page_cost

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Andrew Kane
2023-06-10 01:18:21 -07:00
parent b158a5fa48
commit 49e6a72d36
1 changed files with 1 additions and 1 deletions
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2
src/ivfflat.c
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@@ -118,7 +118,7 @@ ivfflatcostestimate(PlannerInfo *root, IndexPath *path, double loop_count,
/* Use total cost since most work happens before first tuple is returned */ /* Use total cost since most work happens before first tuple is returned */
startupCost = costs.indexTotalCost; startupCost = costs.indexTotalCost;
if (costs.spc_random_page_cost > spc_seq_page_cost) if (costs.spc_random_page_cost >= spc_seq_page_cost)
{ {
/* Adjust cost if needed since TOAST not included in seq scan cost */ /* Adjust cost if needed since TOAST not included in seq scan cost */
if (costs.numIndexPages > path->indexinfo->rel->pages && ratio < 0.5) if (costs.numIndexPages > path->indexinfo->rel->pages && ratio < 0.5)