SQLite Forum

Query performance regression after v3.33.0 (OP_SeekScan?)
Brief PS: simply removing indexes from this example (deleting lines 40 & 41 from my repro script) makes the query hundreds of times faster using v3.35.5, and the plan doesn't use SeekScan in that case. It smells to me like the SeekScan scanning effort parameter (This.P1) might somehow be off by orders of magnitude in the circumstances I've created.