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Jonathan Lewis's tweets

@poststop @jolliffe Bind peeking is an easy guess - take "orders for a client in a date range". Big or small clien… https://t.co/WymljwUCz92 weeks 3 days ago
RT @ToonKoppelaars: This Monday at 5PM CEST "Database Core Performance Principles". https://t.co/DGpzBkvYIz @luxoug1 And no, it will not b… — 2 weeks 4 days ago
@d_settembrino @ChandlerDBA @ICTeamSpa @IT_OUG Donatello, The particular feature of the MERGE is that when you have… https://t.co/cU5IkLq47Z2 weeks 5 days ago
@d_settembrino @ChandlerDBA @ICTeamSpa @IT_OUG You might want to read this: https://t.co/WKIncrm2mf It's generic… https://t.co/czuLUzZrDG2 weeks 5 days ago
In case you missed it yesterday afternoon (BST). The optimizer may ignore lower cost indexed access path if it's ba… https://t.co/WFRZvzd8iK2 weeks 5 days ago
@Limmattal Easy for the optimizer to do strange things with the arithmetic of partitioning - and easy to misinterpr… https://t.co/ZGLSApEBZV2 weeks 5 days ago
RT @ChrisAntognini: In case you missed it, this year’s #tvdpdays will be an online event only. Despite the fact that online events have a n… — 2 weeks 5 days ago
Q: Does Oracle's optimizer ALWAYS pick the lowest cost path (assuming it found it)? A: No https://t.co/PkKeouw9x12 weeks 6 days ago
@AkivaLichtner Definitely. I've got them bookmarked. — 2 weeks 6 days ago
@NinjaPotts Okay, @connor_mc_d and @SQLMaria, which one of you put him up to this. — 2 weeks 6 days ago