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Dan Stefura

Dan Stefura

dstefura@bluecatnetworks.com

3Messages sent
2Threads started2Threads joined0Patches sentacross 0 threads
< 1 yrActiveJul 2026 - Aug 2026
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Threads startedmedian lifetime under a day 0 of 2 have no replies
Longest runningB-tree index scan ~2x slower on PG18 vs PG17 for skewed equality-prefix + range-condition lookups, with essentially the same plan - under a day
Most participants + most messagesHash Semi Join 5,000-50,000x slower on PG18 vs PG17 with 10+ equality columns and NULL values (identical plan, no spill) - 3 participants - 5 messages
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Recent messages (last 30 days)

Threads3 messages
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Replied (own)B-tree index scan ~2x slower on PG18 vs PG17 for skewed equality-prefix + range-condition lookups, with essentially the same plan5 days ago
Started threadB-tree index scan ~2x slower on PG18 vs PG17 for skewed equality-prefix + range-condition lookups, with essentially the same plan6 days ago
Started threadHash Semi Join 5,000-50,000x slower on PG18 vs PG17 with 10+ equality columns and NULL values (identical plan, no spill)24 days ago